Researchers report quantum anomalous Hall effect in rhombohedral graphene

Researchers at the Massachusetts Institute of Technology (MIT), University of Texas at Dallas and Japan's National Institute for Materials Science have reported the quantum anomalous Hall effect (QAHE), a topological phenomenon that features quantized Hall resistance at zero magnetic field, in a rhombohedral pentalayer graphene-monolayer tungsten disulfide (WS2) heterostructure. 

This achievement can also be described as a 'five-lane superhighway' for electrons, that could allow ultra-efficient electronics and more. The team explained that its discovery could have direct implications for low-power electronic devices because no energy is lost during the propagation of electrons, which is not the case in regular materials where the electrons are scattered.

Read the full story Posted: May 14,2024

Lyten ships Li-S battery A-samples for customer evaluation

Lyten has announced it has shipped A samples of its 6.5 Ah (C/3 discharge rate, 25° C) lithium-sulfur pouch cells to Stellantis and other leading US and EU automotive OEMs for evaluation. Lyten is known for using Li-S cathode made of sulfur and its proprietary 3D Graphene, sourced by capturing carbon from methane. This is said to eliminate the need for critical minerals like nickel, cobalt, and manganese in the cathode. The Li-S anode is a lithium metal composite, eliminating the need for graphite. The Company explaines that elimination of critical minerals means a projected 65%+ lower carbon footprint than lithium-ion batteries and a supply chain that can be fully sourced in the US or EU at scale.

Lyten manufactures lithium-sulfur cells in both pouch and cylindrical formats (2170 and 18650) and is currently shipping the 6.5 Ah pouch cell format for customer evaluation. Later this year, Lyten plans to deliver cylindrical A samples for evaluation. Lyten’s lithium-sulfur format flexibility enables its use in a wide range of industries beyond automotive, including space, aerospace, drones, micromobility, defense and consumer electronics.

Read the full story Posted: May 10,2024

Finnlines adopts GIT Coatings' graphene-based hard foul release hull coating across its fleet

Finnlines, a leading shipping operator of freight and passenger services, has partnered with GIT Coatings to accelerate its decarbonization efforts by adopting XGIT-FUEL, an innovative graphene-based hard foul release hull coating, across its ro-ro and ro-pax fleets. 

Starting with their first vessel in 2022, Finnlines has already applied this high-performance hull coating to four vessels as part of a recently signed fleet agreement, reducing fuel consumption and emissions by around 7% compared to previously used coating.

Read the full story Posted: May 09,2024

Graphene Manufacturing Group secures C$3.47 (over USD$ 2.5) million in funding

Graphene Manufacturing Group (GMG) has announced that it has closed a marketed public offering of units of the Company, for a total of CAD$3.47 million (around USD$2,522,000). 

The net proceeds of the Offering are expected to be used primarily to strengthen the Company's financial position and provide liquidity to ‎finance ongoing operations, including, in particular, the Company’s expenses incurred, and expected to be ‎incurred, in connection with the Company’s research and development objectives, and for working capital and general corporate purposes.

Read the full story Posted: May 08,2024

Researchers propose "Universal Murray's Law" for synthetic materials

Researchers from the University of Cambridge, Tokyo Institute of Technology, University of Warwick and University of Namur have proposed a new materials theory based on "Murray's Law," applicable to a wide range of hierarchical structures, shapes and generalized transfer processes. 

The scientists experimentally demonstrated optimal flow of various fluids in hierarchically planar and tubular graphene aerogel structures to validate the proposed law. By adjusting the macroscopic pores in such aerogel-based gas sensors, they also showed a significantly improved sensor response dynamics. 

Read the full story Posted: May 08,2024

Researchers develop graphene oxide spray coating for antiviral protection of face masks

Researchers at Spain's IMDEA Materials Institute, Rey Juan Carlos University and Valladolid University have developed a new spray coating to improve the antiviral efficacy of personal protective equipment, notably face masks.   

The team's system is based on nanoplatelets of graphene oxide (GO) spray coated via a simple one-step procedure over a poly(lactic acid) textile fabric, allowing a homogeneous coating. The incorporation of GO does not affect the textile structure nor its air permeability, while it increases its water contact angle, potentially preventing droplet trespassing. 

Read the full story Posted: May 06,2024

AlterBiota raises USD$2.9 million for biographene concrete additive

Canada-based AlterBiota has received CAD$4 million (over USD$2,925,000) in seed funding to increase hiring and upgrade its commercial-scale facility to make a concrete additive based on its biographene material.

AlterBiota's CEO, Mark Masotti, is a chemical engineer who researched graphene’s ability to decarbonize concrete while on parental leave in 2019. Fascinated by its application, he explored the idea in his basement lab and applied for a provisional patent, then developed the idea into a company. Having conducted tests on its biographene and establishing a pilot plant, Masotti plans to go further in more than doubling his company's staff and building a scale-up plant.

Read the full story Posted: May 05,2024