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Sulfur Provides Promising 'Next-Gen' Battery Alternative

Posted By Graphene Council, Thursday, June 18, 2020
With the increasing demand for sustainable and affordable energy, the ongoing development of batteries with a high energy density is vital. Lithium-sulfur batteries have attracted the attention of academic researchers and industry professionals alike due to their high energy density, low cost, abundance, nontoxicity and sustainability. However, Li-sulfur batteries tend to have poor cycle life and low energy density due to the low conductivity of sulfur and dissolution of lithium polysulfide intermediates in the electrolytes, which are generated when pure sulfur reacts with Li-ions and electrons.  

To circumvent these challenges, a multi-institutional research team led by Chunsheng Wang at the University of Maryland has developed a new chemistry for a sulfur cathode, which offers increased stability and higher energy of Li-sulfur batteries. Chao Luo - an assistant professor of chemistry and biochemistry at George Mason University - served as first author on the study, published in the Proceedings of the National Academy of Sciences (PNAS) on June 15.

Numerous conductive materials such as graphene, carbon nanotube, porous carbon and expanded graphite were used to prevent the dissolution of polysulfides and increase the electrical conductivity of sulfur cathodes - the challenge here is encapsulating the nano-scale sulfur in a conductive carbon matrix with a high sulfur content to avoid the formation of polysulfides.

"We used the chemical bonding between sulfur and oxygen/carbon to stabilize the sulfur," Luo said. "This included a high temperature treatment to vaporize the 'pristine' sulfur and carbonize the oxygen-rich organic compound in a vacuum glass tube to form a dense oxygen-stabilized sulfur/carbon composite with a high sulfur content."

In addition, scanning electron microscope (SEM) and transmission electron microscopy (TEM) instruments, X-ray photoelectron spectroscopy (XPS) and pair distribution function (PDF) were used to illustrate the reaction mechanism of the electrodes.

"In the dense S/C composite materials, the stabilized sulfur is uniformly distributed in carbon at the molecular level with a 60% sulfur content," Wang said. "The formation of solid electrolyte interphase during the activation cycles completely seal the sulfur in a carbon matrix, offering superior electrochemical performance under lean electrolyte conditions."

Li-sulfur batteries have applications in household and handheld electronics, electric vehicles, large scale energy storage devices and beyond.

Tags:  Battery  carbon nanotube  Chao Luo  Chunsheng Wang  George Mason University  Graphene  Li-sulfur batteries  University of Maryland 

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Skeleton teams up with TalTech and Tartu University to develop flexible ultracapacitors

Posted By Graphene Council, Thursday, June 18, 2020
Researchers at TalTech's Polymers and Textile Technology Laboratory are working with Skeleton Technologies and the Institute of Chemistry at the University of Tartu to develop ultracapacitors with special durability properties. The project is supported by the European Space Agency (ESA).

Skeleton is at the forefront of ultracapacitor technology. Working with universities and the European Space Agency is instrumental in keeping our technological edge by pushing us to explore new development pathways, says Egert Valmra, Programme Director at Skeleton.

These new types of ultracapacitors are specifically being developed for space technology because they are flexible, light and at the same time very strong. Researchers are using Curved Graphene to make bendable electrodes, which can be made into any shape. It can be useful in applications with extreme space constraints where you need to shape energy storage according to what kind of volume shapes you have.

"The importance of supercapacitors in today's technology is growing. By their nature, ultracapacitors are used primarily in situations where a large amount of electricity needs to be released quickly, " explains Andres Krumme, head of the working group and professor at TalTech's Polymers and Textile Technology Laboratory.

These ultracapacitors are made by electrospinning and consist of nanofibrous nonwovens. The fibers in these materials are 10 to 100 times thinner than a hair. Inside the fibers one can find Skeleton’s proprietary Curved Graphene material that stores electricity and are held together by a polymeric binder. The fibrous structure developed by the researchers is flexible and up to 20 times stronger than the materials used in conventional supercapacitors. Curved Graphene has two important properties for storing electricity: an exceptionally large specific surface area (area per unit mass) and a particularly good energy storage capacity.

The ultracapacitors under development could be used to provide a strong short-term current pulse in rocket engine launchers and controls, cyclic power to satellites when exposed to sunlight, and to open and mechanically move satellite panels.

The working group has managed to turn the idea to laboratory prototype, and hopes to have the first products in the next 3-5 years with the support of ESA.

Tags:  Andres Krumme  Egert Valmra  European Space Agency  Graphene  polymers  Skeleton  supercapacitors  TalTech  University of Tartu 

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First Graphene Re-opens UK Laboratories

Posted By Graphene Council, Wednesday, June 17, 2020
Advanced materials company, First Graphene Limited is pleased to advise the re-opening of its laboratories at the Graphene Engineering and Innovation Centre (GEIC), Manchester.

The GEIC laboratories were closed by the University of Manchester on 18th March 2020 as a response to the Covid-19 pandemic. The First Graphene UK team has been working remotely since the closure.

Following extensive risk assessment and planning in collaboration with the University facilities management team the UK laboratories are now ready to restart operations. A range of risk controls are now in place including social distancing markings, access restrictions and carefully planned activities. The formal clearance to proceed was given by the University on Monday 15th June.

While working remotely the UK team has continued to provide technical support to global customers, completed background research in preparation for technical projects and supported the activities for the Henderson site.  In addition, the website hosting service has been upgraded and a number of technical enhancements have been made to the website backend to improve performance and security.  Also, multiple announcements and articles for publication were authored during this period.  The team is well prepared for the immediate restart of technical programmes in rubber and TPU additives, supercapacitor materials, fire retardancy and customer application development.

Craig McGuckin, Managing Director of First Graphene Ltd. said “The UK team has played a critical role supporting our business throughout the lockdown. We are all very pleased to be re-starting operations and getting back to technical projects and customer application development in our laboratories”

Tags:  Covid-19  Craig McGuckin  First Graphene  Graphene  Graphene Engineering and Innovation Centre  Healthcare 

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Researchers Advance Graphene Electronics

Posted By Graphene Council, Wednesday, June 17, 2020
In recent years, atomically flat layered materials have gained significant attention due to their prospects for building high-speed and low-power electronics. Best known among those materials is graphene, a single sheet of carbon atoms. Among the unique qualities of this family of materials is that they can be stacked on top of each other like Lego pieces to create artificial electronic materials.

However, while these van der Waals (vdW) heterostructures are critical to many scientific studies and technological applications of layered materials, efficient methods for building diverse vdW heterostructures are still lacking.

A team of researchers has found a versatile method for the construction of high-quality vdW heterostructures. The work is a collaboration between the laboratory of Davood Shahrjerdi, a professor of Electrical and Computer Engineering at the NYU Tandon School of Engineering and a faculty member of NYU WIRELESS; a group led by Javad Shabani at  the Center for Quantum Phenomena, New York University; and Kenji Watanabe and Takashi Taniguchi of National Institute for Materials Science, Japan. Their study was published this week in Nature Communications. 

A crucial step for building vdW graphene heterostructures is the production of large monolayer graphene flakes on a substrate, a process called mechanical “exfoliation.” The operation then involves transferring the graphene flakes onto a target location for the assembly of the vdW heterostructure. An optimal substrate would therefore make it possible to efficiently and consistently exfoliate large flakes of monolayer graphene and subsequently release them on-demand for constructing a vdW heterostructure.

The research team applied a simple yet elegant solution to this challenge involving the use of a dual-function polymeric film with a thickness of below five nanometers (less than 1/10,000th the width of a human hair). This modification allows them to “tune” the film properties such that it promotes the exfoliation of monolayer graphene. Then, for the Lego-like assembly, they dissolve the polymeric film underneath the monolayer graphene using a drop of water, freeing graphene from the substrate.

“Our construction method is simple, high-yield, and generalizable to different layered materials,” explained Shahrjerdi. “It enabled us to optimize the exfoliation step independently of the layer transfer step and vice versa, resulting in two major outcomes: a consistent exfoliation method for producing large monolayer flakes and a high-yield layer transfer of exfoliated flakes. Also, by using graphene as a model material, we further established the remarkable material and electronic properties of the resulting heterostructures.”

Tags:  Davood Shahrjerdi  Electronics  Graphene  graphene heterostructures  New York University 

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Dirac Electrons Come Back to Life in Magic-Angle Graphene

Posted By Graphene Council, Wednesday, June 17, 2020
In 2018 it was discovered that two layers of graphene twisted one with respect to the other by a “magic” angle show a variety of interesting quantum phases, including superconductivity, magnetism and insulating behaviours. Now a team of researchers from the Weizmann Institute of Science led by Prof. Shahal Ilani of the Condensed Matter Physics Department, in collaboration with Prof. Pablo Jarillo-Herrero’s group at MIT, have discovered that these quantum phases descend from a previously unknown high-energy “parent state,” with an unusual breaking of symmetry.

Graphene is a flat crystal of carbon, just one atom thick. When two sheets of this material are placed on top of each other, misaligned at small angle, a periodic “moiré” pattern appears. This pattern provides an artificial lattice for the electrons in the material. In this twisted bilayer system the electrons come in four “flavours”: spins “up” or “down,” combined with two “valleys” that originate in the graphene’s hexagonal lattice. As a result, each moiré site can hold up to four electrons, one of each flavour.

While researchers already knew that the system behaves as a simple insulator when all the moiré sites are completely full (four electrons per site), Jarillo-Herrero and his colleagues discovered to their surprise, in 2018, that at a specific “magic" angle, the twisted system also becomes insulating at other integer fillings (two or three electrons per moiré site). This behaviour, exhibited by magic-angle twisted bilayer graphene (MATBG), cannot be explained by single particle physics, and is often described as a “correlated Mott insulator.” Even more surprising was the discovery of exotic superconductivity close to these fillings. These findings led to a flurry of research activity aiming to answer the big question: what is the nature of the new exotic states discovered in MATBG and similar twisted systems?

Imaging magic-angle graphene electrons with a carbon nanotube detector
The Weizmann team set out to understand how interacting electrons behave in MATBG using a unique type of microscope that utilizes a carbon nanotube single-electron transistor, positioned at the edge of a scanning probe cantilever. This instrument can image, in real space, the electric potential produced by electrons in a material with extreme sensitivity.

“Using this tool, we could image for the first time the ‘compressibility' of the electrons in this system – that is, how hard it is to squeeze additional electrons into a given point in space,” explains Ilani. “Roughly speaking, the compressibility of electrons reflects the phase they are in: In an insulator, electrons are incompressible, whereas in a metal they are highly compressible.”

Compressibility also reveals the “effective mass” of electrons. For example, in regular graphene the electrons are extremely “light,” and thus behave like independent particles that practically ignore the presence of their fellow electrons. In magic-angle graphene, on the other hand, electrons are believed to be extremely “heavy” and their behaviour is thus dominated by interactions with other electrons ‒ a fact that many researchers attribute to the exotic phases found in this material. The Weizmann team therefore expected the compressibility to show a very simple pattern as a function of electron filling: interchanging between a highly-compressible metal with heavy electrons and incompressible Mott insulators that appear at each integer moiré lattice filling. 

To their surprise, they observed a vastly different pattern. Instead of a symmetric transition from metal to insulator and back to metal, they observed a sharp, asymmetric jump in the electronic compressibility near the integer fillings.

"This means that the nature of the carriers before and after this transition is markedly different," says study lead author Uri Zondiner. "Before the transition the carriers are extremely heavy, and after it they seem to be extremely light, reminiscent of the ‘Dirac electrons’ that are present in graphene."

The same behaviour was seen to repeat near every integer filling, where heavy carriers abruptly gave way and light Dirac-like electrons re-emerged.

But how can such an abrupt change in the nature of the carriers be understood? To address this question, the team worked together with Weizmann theorists Profs. Erez Berg, Yuval Oreg and Ady Stern, and Dr. Raquel Quiroez; as well as Prof. Felix von-Oppen of Freie Universität Berlin. They constructed a simple model, revealing that electrons fill the energy bands in MATBG in a highly unusual “Sisyphean” manner: when electrons start filling from the “Dirac point” (the point at which the valence and conduction bands just touch each other), they behave normally, being distributed equally among the four possible flavours. “However, when the filling nears that of an integer number of electrons per moiré superlattice site, a dramatic phase transition occurs,” explains study lead author Asaf Rozen. “In this transition, one flavour ‘grabs’ all the carriers from its peers, ‘resetting’ them back to the charge-neutral Dirac point.”  

“Left with no electrons, the three remaining flavours need to start refilling again from scratch. They do so until another phase transition occurs, where this time one of the remaining three flavours grabs all the carriers from its peers, pushing them back to square one. Electrons thus need to climb a mountain like Sisyphus, being constantly pushed back to the starting point in which they revert to the behavior of light Dirac electrons,” says Rozen. While this system is in a highly symmetric state at low carrier fillings, in which all the electronic flavours are equally populated, with further filling it experiences a cascade of symmetry-breaking phase transitions that repeatedly reduce its symmetry.

A “parent state”
“What is most surprising is that the phase transitions and Dirac revivals that we discovered appear at temperatures well above the onset of the superconducting and correlated insulating states observed so far,” says Ilani. “This indicates that the broken symmetry state we have seen is, in fact, the ‘parent state’ out of which the more fragile superconducting and correlated insulating ground states emerge.”

The peculiar way in which the symmetry is broken has important implications for the nature of the insulating and superconducting states in this twisted system.

“For example, it is well known that stronger superconductivity arises when electrons are heavier. Our experiment, however, demonstrates the exact opposite: superconductivity appears in this magic-angle graphene system after a phase transition has revived the light Dirac electrons. How this happens, and what it tells us about the nature of superconductivity in this system compared to other more conventional forms of superconductivity remain interesting open questions,” says Zondiner.

A similar cascade of phase transitions was reported in another paper published in the same Nature issue by Prof. Ali Yazdani and colleagues at Princeton University. "The Princeton team studied MATBG using a completely different experimental technique, based on a highly-sensitive scanning tunneling microscope, so it is very reassuring to see that complementary techniques lead to analogous observations,” says Ilani.

The Weizmann and MIT researchers say they will now use their scanning nanotube single-electron-transistor platform to answer these and other basic questions about electrons in various twisted-layer systems: What is the relationship between the compressibility of electrons and their apparent transport properties? What is the nature of the correlated states that form in these systems at low temperatures? And what are the fundamental quasiparticles that make up these states?

Tags:  bilayer graphene  Graphene  Massachusetts Institute of Technology  Pablo Jarillo-Herrero  Shahal Ilani 

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Discovery of graphene switch

Posted By Graphene Council, Wednesday, June 17, 2020
Researchers at Japan Advanced Institute of Science and Technology (JAIST) have successfully measured the current-voltage curve of graphene nanoribbons (GNRs) that were suspended between two electrodes. Measurements were performed using transmission electron microscopy (TEM) observation. Results revealed that, in contrast to the findings of previous reports, the electrical conductance of GNRs with a zigzag edge structure (zigzag GNRs) abruptly increased above the critical bias voltage. This finding is worth noting because the abrupt change in these GNRs can be applied to switching devices, which are the smallest devices in the world.

The electrical structure of GNRs have been systematically investigated through theoretical calculations. Studies have reported that both zigzag and armchair GNRs exhibit semiconducting behavior below several nm in width, although the origin of the energy gap is different. On the other hand, the electrical transport properties have rarely been calculated owing to the non-equiribrium calculations required. In 2009, Nikolic et al. predicted that sharp increments in electrical conductance would occur for extremely thin and short zigzag GNRs as the magnetic-insulator-nonmagnetic-metal phase transition occurs above a certain bias voltage [Phys. Rev.B 79, 205430 (2009)]. The obtained experimental results correspond closely to the results of this non-equilibrium calculation.

A research team led by Ms. Chumeng LIU, Professor Yoshifumi OSHIMA and Associate Professor Xiaobin ZHANG (now of Shibaura Institute of Technology) has developed a special in situ TEM holder and a GNR device for TEM observation. This combination is aimed at clarifying the relationship between the edge structure of GNRs and electrical transport properties. Ms. Liu, the doctoral student of JAIST, said, "The fabrication process of our GNR device is much more difficult than the conventional one because we need to make very narrow GNR which should be stably suspended between both electrodes." She reviewed the literature focused on the fabrication process of GNR devices and verified their process en route to establishing her original fabrication method. Assoc. Prof. ZHANG said, "We were really happy to see that the I-V curve obviously changed when changing the edge structure to zigzag. I suppose we have encountered new possibilities for graphene nanoribbons." The team has successfully performed the in situ TEM observation of extremely narrow GNRs, and they plan to continue identifying electrical transport properties that are sensitive to the edge structure of these GNRs.

Tags:  Graphene  graphene nanoribbons  Japan Advanced Institute of Science and Technology  Xiaobin ZHANG 

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Pitt Engineer Maintains a Laser Focus to Grow Nanocarbons on Flexible Devices

Posted By Graphene Council, Wednesday, June 17, 2020
Fabrication of flexible and wearable electronics often requires integrating various types of advanced carbon nanomaterials - such as graphene, nanotubes, and nanoporous carbon - because of their remarkable electrical, thermal, and chemical properties. However, the extreme environments needed to chemically synthesize these nanomaterials means they can only be fabricated on rigid surfaces that can withstand high temperatures. Printing already-made nanocarbons onto flexible polymeric materials is generally the only option, but limits the potential customization.

To overcome this limitation, researchers at the University of Pittsburgh Swanson School of Engineering are investigating a new scalable manufacturing method for creating customizable types of nanocarbons on-demand - directly where they are needed - on flexible materials.

The research is led by Mostafa Bedewy, assistant professor of industrial engineering at Pitt, who received a $244,748 EAGER award from the National Science Foundation in support of this effort. The project, “Transforming Flexible Device Manufacturing by Bottom-up Growth of Nanocarbons Directly on Polymers,” will enable patterning functional nanocarbons needed for a number of emerging flexible-device applications in healthcare, energy, and consumer electronics.

Bedewy’s group is already working on another NSF-funded project that utilizes a custom-designed reactor to grow “nanotube forests” through a process called chemical vapor deposition (CVD). This enables the synthesis of carbon nanotubes from catalyst nanoparticles by the decomposition of carbon-containing gases. The process, however, is not suitable for growing nanocarbons directly onto commercial polymers.

“When we grow nanocarbons by CVD on silicon, it requires temperatures exceeding 700 degrees Celsius, in the presence of hydrocarbon gases and hydrogen,” explained Bedewy, who leads the NanoProduct Lab in the Swanson School's Department of Industrial Engineering. “While silicon can tolerate those conditions, polymers can’t, so CVD is out of the question.”

Instead, Bedewy’s group will utilize a laser in a similar way that common laser engraving machines function. When manufacturing flexible devices, current methods of printing carbon on polymers are limited in scalability and patterning resolution. This new laser-based method addresses these limitations. 

Rather than printing graphene from graphene ink, nanotubes from nanotube ink, and so on, the polymer material itself will act as the carbon source in the new process, and different types of nanocarbons can then grow from the polymer, like grass in a lawn - but instead of using sunlight, through a controlled laser.

“This approach allows us to control the carbon atomic structure, nanoscale morphology, and properties precisely in a scalable way,” said Bedewy. “Our research provides a tremendous opportunity to rapidly customize the type of nanocarbon needed for different devices on the same substrate without the need for multiple inks and successive printing steps.”

Producing functional nanocarbons in this manner will also enable high-rate roll-to-roll processing, which can potentially make manufacturing flexible electronics as fast and as inexpensive as printing newspapers.

“The multi-billion dollar global market for flexible electronics is still in its infancy, and is expected to grow exponentially because of accelerating demand in many applications,” Bedewy said “Exploring potentially transformative carbon nanomanufacturing processes is critical for realizing cutting-edge technologies.”

Tags:  Chemical Vapour Deposition  Electronics  Graphene  Mostafa Bedewy  nanomaterials  polymer  University of Pittsburgh 

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National Science Foundation awards environmental engineering and advanced manufacturing grants to mechanical engineering department

Posted By Graphene Council, Wednesday, June 17, 2020
The National Science Foundation, or NSF, has granted assistant professors of mechanical engineering, Guoping Xiong and Pradeep Menezes, research awards for their respective projects.

Xiong’s research will be especially useful for cleanup after oil spills into water ecosystems and recovery. In collaboration with the University of Notre Dame, Xiong’s research focuses on understanding the nature of interaction between oil and graphene nanochannels. It will be achieved through experiments designed to explain the mechanisms governing the synergistic effects of the nanochannel geometry and surface functionalization of plasma-nanoengineered, vertically standing graphene petal oil skimmers.

Menezes’ research, titled “Understanding Interfacial Mechanisms to Design and Manufacture High-Performance Biodegradable Ionic Liquid Lubricants.” Many mechanical moving assemblies, or MMAs, require lubrication, and most MMAs use petroleum-based lubricants, which is not environmentally friendly. Menezes’s research will provide new bio-based lubricants that can replace petroleum-based lubricants and reduce the overall carbon footprint of MMAs, positively impacting the environment. Mano Misra, professor of chemical and materials engineering, will be a co-principal investigator.

Tags:  Graphene  Guoping Xiong  Pradeep Menezes  The National Science Foundation 

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Researchers develop new hydrogen-generating photocatalyst design

Posted By Graphene Council, Wednesday, June 17, 2020

Researchers from the Indian Institute of Technology (IIT) Mandi, in collaboration with researchers from Yogi Vemana University, have designed a novel photocatalyst that can remove pollutants from water while simultaneously generating hydrogen using sunlight.

The researchers have designed a series of novel and multifunctional nanocomposite photocatalysts by coupling mesocrystals of calcium titanate with edge sulphur atoms enriched molybdenum disulphide and reduced graphene oxide. A specific and useful example of a photocatalytic reaction is the splitting of water into hydrogen and oxygen. Although this reaction was demonstrated as early as 1972 by Fujishima and Honda, the inefficiency of the process has been a bottleneck in scaling up the technology for practical applications. In addition, the researchers have also used these photocatalysts in the degradation of organic pollutants found in water.

“The performance of a photocatalytic reaction depends upon the efficiency with which the photocatalyst converts light energy into photogenerated charges that drives the reaction of interest,” explains Dr Venkata Krishnan, Associate Professor, School of Basic Sciences, IIT Mandi. Photocatalysts work by generating electron-hole pairs when exposed to light of specific wavelengths, which induces the reaction they are meant to catalyze. Oxide materials such as titania and titanates are commonly studied photocatalysts, but these materials are often inefficient by themselves because the electrons and holes combine before the reaction can be propelled forward.

“Mesocrystals, a new class of ‘superstructures’ made of highly ordered nanoparticles, could limit the recombination of electron-hole pairs because the free electrons that are generated flow between particles before they can recombine with the hole,” says Dr. Venkata Krishnan.

“The performance of a photocatalytic reaction depends upon the efficiency with which the photocatalyst converts light energy into photogenerated charges that drives the reaction of interest,”

“Our combination showed a 33-fold enhanced photocatalytic hydrogen evolution over pure calcium titanate, with apparent light-to-electron conversion efficiencies of 5.4%, 3.0% and 17.7% for light of three different wavelengths, orange light (600 nm wavelength) producing the highest efficiency”, says Dr. Venkata Krishnan. The mesocrystal-semiconductor-graphene combination also degrades many kinds of organic pollutants when exposed to light, which makes it promising for pollution control techniques.

Dr. Venkata Krishnan attributes the enhancement in photocatalytic performance of their material combination, to three factors: (a) the intimate contact between the three components, which leads to better electron transfer; (b) the high surface area that provides more space for the reaction to take place; and (c) specific sites on molybdenum disulphide (MoS2) that act as sticky sites for the positive hydrogen ions that are generated during the reaction, which, in turn, enhances hydrogen production.

It may be known that graphene is the new “wonder-material” in the field of materials science, ever since its isolation earned the Nobel Prize in 2010. The scientists at IIT Mandi found that remarkable enhancement in photocatalytic activity could be achieved with this combination.

Tags:  Environment  Graphene  Indian Institute of Technology Mandi  nanocomposite  Venkata Krishnan  Yogi Vemana University 

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Uwin Chemical Technology Co Sign Distributor Agreement for Taiwan

Posted By Graphene Council, Wednesday, June 17, 2020
Haydale is pleased to announce that it has signed a distributor agreement between Haydale and Uwin chemical Technology Co., Ltd. The Agreement is for a period of 24 months and allows Uwinchem exclusive distributor rights to market Haydale’s products in Taiwan.

Uwinchem is a leading provider of advanced materials and chemical process solutions in Taiwan and the Agreement provides the opportunity for it to promote and supply Haydale’s functionalised graphene and other 2D materials to the Taiwan market.

Of particular interest are the medical, automotive and aerospace markets, where Uwinchem will promote composite materials, inks and sensors for semiconductor, thermal management and mechanical benefits.

Titus Huang, President at Uwinchem, said: “Uwinchem welcomes the addition of Haydale’s Graphene and 2D material products and solutions to its portfolio. With Haydale’s products already proven and in use in cutting edge automotive, aeronautical and medical applications, we welcome the opportunity to help clients improve performance significantly.”

Keith Broadbent, Haydale CEO, said: “We are pleased to partner with Uwinchem on its specialist technical areas of expertise. We believe our current range of products and services will provide the next level ground-breaking products in the Taiwanese Market.”

Tags:  2D materials  composites  Graphene  Haydale  Keith Broadbent  Titus Huang  Uwin chemical Technology 

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