First Graphene announces low-cost, high-performing graphene-based electrocatalysts

First Graphene has developed a low-cost, high-performing graphene-based electrocatalyst that targets the rapidly growing production of ‘green hydrogen’ by water electrolysis. Electrocatalysts are used to produce ‘green hydrogen’, but currently require high-cost rare metals such as iridium and ruthenium which can drive up operating costs. First Graphene’s solution uses its PureGRAPH® technology to produce higher-performing, affordable electrocatalysts.

First Graphene has completed a 12-month project in the United Kingdom to develop low-cost, high-performing electrocatalysts for hydrogen production.

Read the full story Posted: Mar 21,2024

Levidian unveils graphene-enhanced prototype truck tire

Levidian has unveiled its first prototype truck tire, combining graphene with carbon black in a new tread formulation. Launched this week at the Tire Technology Expo in Hannover, the graphene-enhanced natural rubber and butadiene rubber tire tread compound, typically used in commercial vehicle tires, has been shown to deliver significant improvements in the mechanical and dynamic properties of the tire.

Independent testing by the Tun Abdul Razak Research Centre (TARRC) has reportedly shown that the addition of Levidian’s 'net zero graphene' can deliver a reduction in rolling resistance of around 23%. Initial results have also indicated potential for reduced compound density that could allow for lighter tires overall. It was said that overall, this could deliver substantial improvements in fuel efficiency of 3-4%.  

Read the full story Posted: Mar 20,2024

Researchers develop approach for creating tight arrangement of bilayer alkali metals between graphene layers for improved batteries

Researchers at AIST, Osaka University, Tokyo Polytechnic University, Kyushu University, and National Tsing Hua University, have developed a technique to insert alkali metals (AMs) into the interlayers of graphene. They them used low-voltage scanning transmission electron microscopy (LV-STEM) to visualize the atomic structure of the intercalated AMs (potassium, rubidium, and cesium) in the bilayer graphene (BLG). The team's findings revealed that the intercalated AMs adopt bilayer structures with hcp stacking, and specifically a C6M2C6 composition. 

The performance of rechargeable batteries is a key factor influencing the driving distance of electric vehicles and the usage time of smartphones. Improving the performance of these electronic devices is possible if rechargeable batteries can accumulate greater electrical capacities. Graphite, the electrode material used in batteries, is composed of multilayers of graphene, with alkali metals placed between the layers to facilitate the flow of electrons during charging and discharging. Achieving a high density of alkali metals storage between graphene layers could increase the electric capacity.

Read the full story Posted: Mar 19,2024

First Graphene announces successful production of multi-kilogram quantities of graphene oxide

First Graphene has reported the successful production of multi-kilogram quantities of graphene oxide at the Company’s Henderson facility in Western Australia.

Building on existing manufacturing expertise, First Graphene identified a new route to manufacturing graphene oxide materials using the Company’s existing capabilities, opening an expanded range of commercial opportunities. The graphene oxide product was manufactured in a cost-effective, scalable, and repeatable process that produces a consistent product with minimal waste streams.

Read the full story Posted: Mar 18,2024

Researchers develop deformable graphene-based liquid metal micro-supercapacitors

Researchers from Pohang University of Science and Technology (POSTECH), Korea Institute of Industrial Technology and Konkuk University have fabricated highly deformable graphene-based micro supercapacitors (MSCs) using liquid metal current collectors on an elastic polymer substrate.

a Illustration of an integrated system comprising soft-electronics and deformable energy storage component. b The fabrication process of EGaIn-based MSC. c UV-vis spectra of SEBS, EGaIn, and graphene. FE-SEM images of laser ablated d Graphene/EGaIn and e EGaIn (Scale bar = 200 µm). Photographs of f institute logos, g deformed logos, and h an LED connected to the MSC circuit (Scale bar = 1 cm). (Image from npj Flexible Electronics)

The team used eutectic gallium-indium (EGaIn), a liquid metal alloy, as the current collector since a deformable current collector is needed in order to create a deformable MSC. Commonly used current collectors made of brittle materials like gold (Au) are not suitable in this case, so the team turned to 'liquid metal' that inherently possesses the properties of a liquid and metallic conductivity.

Read the full story Posted: Mar 18,2024

Graphene-Info releases a new edition of its Graphene Oxide Market Report

Today we published a new edition of our Graphene Oxide Market Report, with all the latest information, including new research activities related to GO. Our market report is a comprehensive guide to graphene oxide (and r-GO) materials and their promising applications in energy storage, composite materials, bio-medical, water treatment and more.

Reading this report, you'll learn all about:

  • The difference between graphene oxide and graphene
  • Graphene oxide properties
  • Possible applications for graphene oxide
  • Reduction of graphene oxide to r-GO

The report package also provides:

  • A list of prominent GO research activities
  • A list of all graphene oxide developers and their products
  • Datasheets for over 20 different GO materials
  • Free updates for a year

This Graphene Oxide market report provides a great introduction to graphene oxide materials and applications, and covers everything you need to know about GO materials on the market. This is a great guide for anyone interested in applying graphene oxide in their products.

Read the full story Posted: Mar 18,2024

Lyten announces manufacturing milestone - producing Lithium-sulfur batteries at greater than 90% yield

Lyten recently announced it is consistently surpassing 90 percent yield from its automated battery production line, confirming the manufacturability of its lithium-sulfur battery utilizing a sulfur cathode and lithium metal anode.

The lithium-sulfur manufacturing performance has been achieved utilizing standard lithium-ion manufacturing equipment and processes. The conversion of lithium-ion equipment to produce lithium-sulfur batteries in Lyten’s pilot facility required 6 weeks and less than 2% of the total capital cost. This confirms Lyten’s ability to rapidly scale by converting existing Li-ion gigafactories to lithium-sulfur with minimal cost and time.

Read the full story Posted: Mar 17,2024

Versarien signs South American Graphinks agreements with Montana Química

Versarien has announced that it has, in line with its stated strategy to monetize intellectual property through licensing, entered into a manufacturing license agreement and a know-how license and technical assistance agreement with Montana Química ("Montana"). Montana is a Brazilian headquartered multinational business focused on the production and sale of paints, wood preservatives and other wood finishing products including stains and varnishes. The agreements cover the use of the Company's proprietary graphene and related material dispersions and formulations (Graphinks™) in products to be manufactured and sold by Montana in South America, together with Versarien providing further additional know-how, technical assistance and training to Montana.

Under the terms of these agreements, Versarien has granted a license to Montana, for an initial period of five years, to use certain intellectual property and know-how owned by the Company in their business in South America. Montana will pay Versarien initial fees of £50,000 in March 2024 in consideration of the know-how and technical assistance, including training, to be provided. Once Montana commences manufacturing under the agreement, a further payment of £25,000 will be due to the Company, together with an amount equal to 5% of the total sales revenue earned from products manufactured using Versarien's intellectual property and know-how, subject to minimum royalty payments of £25,000 per annum.

Read the full story Posted: Mar 17,2024

Graphjet Technology begins trading on Nasdaq

Graphjet Technology has announced it will begin trading on Nasdaq under the ticker symbol “GTI". Graphjet Technology, developer of patented technologies to produce graphite and graphene directly from agricultural waste, and Energem Corp. (Nasdaq: ENCP, ENCPW), have closed a business combination that "creates the only pure-play publicly traded direct biomass-to-graphite company.

Graphjet has raised $5.8 million through the transaction and anticipates that additional fundraising will be necessary to accelerate its growth strategy and expand its manufacturing capacity. These funds will enhance the Company’s financial flexibility as well as its ability to capitalize on organic and inorganic growth opportunities.

Read the full story Posted: Mar 16,2024

Archer Materials miniaturizes biochip gFET chip design

Archer Materials has designed a miniaturized version of its Biochip graphene field effect transistor ("gFET") chip for fabrication at a commercial foundry.

The Archer Biochip contains a sensing region of which the gFET is the core component. Each gFET chip contains multiple gFETs, each of which is a transistor, which acts as a sensor. Archer has miniaturized the total chip size by redesigning the layout of the circuits creating these gFET transistors. The new miniaturized design has been sent to a foundry partner for a whole-wafer fabrication of reduced size gFET chips, which Archer intends to integrate with other parts of the Biochip technology.

Read the full story Posted: Mar 15,2024