Skeleton’s supercapacitors to power CAF’s new metro units in Granada, Spain

Skeleton Technologies has announced that it will supply its 'curved graphene'-enhanced supercapacitors to the metro units
Spanish manufacturer CAF will provide to the city of Granada, Spain.

Headquartered in Donostia - San Sebastian (Spain), the CAF Power & Automation has been working with Skeleton Technologies since last year. Following a successful tender, the Spanish manufacturer has been selected by the Metro de Granada to supply 8 new units for the city's network, which will be added to the 15 previously-delivered units which are
currently in service.

Read the full story Posted: Sep 15,2022

Applied Graphene Materials signs deal with undisclosed 'global leader in the car detailing industry'

Applied Graphene Materials (AGM) has signed a supply agreement with a global leader in the car detailing industry for an exclusively developed graphene-based solution. The partnership with an undisclosed 'global household name brand' is said to represent a significant milestone for AGM in the car care sector, where it has already announced multiple product launches with smaller participants.

AGM said its new partner is driving innovation in the market and now leads the way in the supply of high-performance auto detailing and finishing products. The addition of AGM's Genable graphene nanoplatelet dispersion technology into car care systems has the potential to significantly improve the barrier performance of waxes, polishes and finishing sprays for vehicles, the company added.

Read the full story Posted: Sep 15,2022

Researchers show that hydrodynamic electrons flow through materials without electrical resistance

Scientists from Israel's Weizmann Institute of Science, in collaboration with teams at Manchester University and UC Irvine,  have shown that an electronic fluid can flow through materials without any electrical resistance, thereby perfectly eliminating a fundamental source of resistance that forms the ultimate limit for ballistic electrons. This result could open the door to improved electronic devices that do not heat up as much as existing technologies.

When electrons flow in electrical wires, they lose part of their energy, which is wasted as heat. This heating is a major problem in everyday electronics. The heating occurs because electrical conductors are never perfect and have a resistance for the flow of electrical currents. Typically, this resistance originates from the scattering of the flowing electrons by imperfections in the host material. But it stands to reason that a perfect conductor, devoid of any imperfections, would have zero resistance. However, even if the conductor is perfectly clean and free from imperfections, the resistance does not vanish. Instead, a new source of resistance emerges, known as the Landauer-Sharvin resistance. In an electrical conductor, electrons flow in quantum channels, much like cars in highway lanes. Similar to highway lanes, each electronic channel has a finite capacity to conduct electrons, limited by the quantum of conductance. For a given conductor, the number of quantum channels is finite and determined by its physical width. Thus, even a perfect electronic device, devoid of any imperfections, will never have infinite conductance. It will always have resistance. In the absence of interactions between electrons, this Landauer-Sharvin resistance is unavoidable, putting a fundamental lower bound on the heating of computer chips, which becomes even more severe as transistors become smaller.

Read the full story Posted: Sep 14,2022

Zentek announces manufacturing and supply agreement with Viva Healthcare Packaging for graphene-enhanced surgical masks

Zentek recently announced it has entered into a Manufacturing and Supply Agreement with Viva Healthcare Packaging (Canada) Ltd. ("VMedCare”) to manufacture and sell surgical masks enhanced with Zentek’s proprietary ZenGUARD™ antimicrobial coating. During the pandemic, VMedCare became one of the leaders in surgical mask manufacturing in Canada with production of between 15 and 20 million units per month. The partnership between Zentek and VMedCare will create a fully “Made in Canada” source of ZenGUARD™-enhanced masks for the Canadian market.

Under the Agreement, Zentek will provide ZenGUARD™-coated spunbond material to VMedCare, who will be responsible for manufacturing and packaging the ZenGUARD™ surgical masks. Zentek and VMedCare’s combined sales teams will work together to secure sales of the ZenGUARD™-enhanced surgical masks.

Read the full story Posted: Sep 12,2022

Researchers develop graphene oxide and single-walled carbon nanohorns hybrid for supercapacitor electrodes

Ni-Co layered double hydroxides (LDH) are seen as promising materials for pseudocapacitor electrodes. Researchers from Chonnam National University and Korea Institute of Science and Technology (KIST) recently conducted a study that focused on the use of graphene oxide (GO) and single-walled carbon nanohorns (SWCNHs) hybrid as an efficient platform for LDH coating materials for supercapacitor electrodes.

The team explained that the novel Ni-Co LDH and GO/SWCNHs composite-based supercapacitor electrode material could be a potential choice for pseudocapacitor applications thanks to its superior electrochemical properties and ease of production, which is ideal for various commercial and industrial applications.

Read the full story Posted: Sep 11,2022

Iodine-doped graphene oxide could be an efficient electrocatalyst for fuel cells

Researchers from the National Institute for Cryogenics and Isotopic Technologies ICSI-Rm in Romania have applied microwave processes to iodine doping and reduction of graphene oxide, to produce functionalized fuel cell organic reduction reaction electrocatalysts. The team chose to utilize microwave-assisted processes because of their many benefits, like reduced energy, time, and cost demands.

The process developed by the team relies on a faster, simpler, more economical, and efficient protocol under atmospheric pressure conditions. Under mild conditions, the microwave-assisted process highlighted in the research synthesizes a canvas-like iodine/reduced graphene oxide structure from graphene oxide. Thus, a low-cost, efficient alternative to platinum-based catalysts has been developed.

Read the full story Posted: Sep 08,2022