Graphene Oxide

An interview with Rahul Fotedar, Co-founder of Graphene Batteries

Graphene Batteries is a Norwegian company that was founded over two years ago in order to explore the potential of graphene in batteries and develop practical graphene-based battery products.

Its vision is to provide robust battery materials for a renewable energy ecosystem, aiming to create durable battery materials that are reliable, safe and green. 

The sample, which is the proprietary LFP/graphene powder (cathode material for Li-ion batteries). It has about 20% higher capacity than the state of the art carbon coated LFP powder, an improvement that is even more significant at higher currents. Moreove

Graphene oxide helps create innovative insulating foam for houses

Researchers from Stockholm University managed to develop a super-insulating and fire retardant foam for house insulation by freezing together graphene oxide, cellulose nanofibers and clay nanorods.

The foam is highly porous and boasts lower thermal conductivity than traditional insulators like polystyrene and polyurethane. It is mechanically stiff, able to sustain great loads and also does not need to be laced with organic fire retardants (it is inherently fire retardant). The researchers believe this foam could even be fitted onto older buildings without tampering with their appearance.

Graphene-oxide coating to enable anti-rust paint, hermetic food-packaging and electronic substrates

Researchers at the University of Manchester developed a new coating made from graphene-oxide that can be used to enable ultra-strong non-corrosive coating paints, hermetic food packaging and even a good substrate for flexible electronics.

The researchers developed the graphene-oxide coating by taking graphene-oxide and treating it with a "simple chemical treatment". The resulting film behaves like graphite in terms of chemical and thermal stability but becomes mechanically nearly as tough as graphene.

Graphene quantum dots enables a multi functional bio-sensor

Researchers from from Zhejiang Normal University in China developed a biocompatible bio-sensor that can simultaneous detection multiple biomarkers, such as DNA and proteins. Those sensors are made from carbon materials - mainly graphene-oxide (GO) and graphene quantum dots (GQDs).

The researchers explain hat GQDs rae promising environmentally friendly and biocompatible nanomaterials that can be used to design new fluorescence detection platforms in vitro and in vivo. The researchers use the specifically designed fluorescence on-off-on process that takes advantage of the intense and dual-color fluorescence of the GQDs, in addition to the efficient quenching effect of GO. The high emission efficiency of GQDs guarantees the high sensitivity of the constructed biosensors, while the good biocompatibility is promising for use of biosensors in vivo.

Graphene oxide reinforced Nanocomposite for Naval/Marine applications

Researchers from India's VIT University developed new a basic nanocomposite material for naval/marine application devices. This material is anti-corrosive and is a high-performance functional device, which the researchers say suits the requirements for applications for marine and naval conditions (humidity, temperature, etc).

The material is a graphene-oxide reinforced/conjugated polymer nanocomposite. A PEDO-block-PEG polymer was used as a host medium, with graphene-oxide as a modifier and PVDF as crosslinker. The researchers say this is a novel composite that exhibits high performance in structure, thermal, morphology and electrical properties.

Sixteen year-old suggests cleaning up the world by mixing graphene oxide with titanium dioxide

A sixteen year-old boy from Lancaster, England developed a composite material that he created from a pencil and sunscreen lotion, that can break down pollutants when exposed to UV light. He suggests using it as a "self-cleaning" coating.

The boy (Samuel Burrow) did some experiments and entered into Google's Science Fair 2014 competition and was eventually chosen as one of the 18 finalists. The grand prize in this competition is a $50,000 scholarship, a trip to the Galapagos islands and more.

Graphene Oxide and hBN used to create tough ultralight foam material

Researchers from Rice University developed a new chemical process that is used to create a tough, ultra-light foam in any size and shape. The new foam (called GO-0.5BN) is made from two 2D materials: graphene oxide and hexagonal boron nitride (hBN) platelets.

This foam can be used as structural component in applications such as electrodes for supercapacitors and batteries and gas absorption material.

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