Graphene-Info: the graphene experts

Versarien has announced the launch of a new hybrid nanomaterial that has superparamagnetic properties, which can be used across a range of applications, like defense and healthcare. The new material combines graphene with both iron oxide and manganese oxide nanoparticles and its development was led by Versarien's 62% owned subsidiary, Gnanomat.

The superparamagnetic material combines graphene with both iron oxide and manganese oxide nanoparticles that provide the material with magnetic properties. In return, graphene provides electrical conductivity to these electrically insulating metal oxides. Magnetic nanocomposites can readily respond to external magnetic fields which allow them to be manipulated. Potential applications of the material include the treatment of wastewater whereby pollutants are adsorbed onto the graphene surface. The material could also lends be used in biomedical and biotechnology applications, or defense applications requiring the shielding of electromagnetic fields. Magnetic manipulation could allow the recovery and recycling of the graphene, something that could not be done with normal graphene compounds.

A team of researchers from the University of Minnesota Twin Cities, the University of Massachusetts Amherst and University of California, Santa Barbara have invented a graphene-based device that electronically converts one metal into behaving like another to use as a catalyst for speeding chemical reactions.

The fabricated device, called a “catalytic condenser,” is the first to demonstrate that alternative materials that are electronically modified to provide new properties can yield faster, more efficient chemical processing.

Last year's announcement about a British engineering company called Viritech that is working on an ambitious hydrogen-powered hypercar was recently followed by an update on that same company, that unveiled its 745kW hydrogen-powered hypercar, styled by Italian car design specialist Pininfarina.

The Apricale, which produces zero emissions, made its debut at Goodwood’s Festival of Speed. It was said that the Apricale uses ‘graphene-reinforced hydrogen pressure vessels’, which was explained to mean that the hydrogen storage tanks form a structural element of the chassis. This reduces weight and cost, while simplifying the structure.

Researchers at the University of Vienna have measured the migration of carbon atoms on the surface of graphene for the first time. Although the atoms move too quickly to be directly observed with an electron microscope, their effect on the stability of the material can now be determined indirectly while the material is heated on a microscopic hot plate.

Graphene has been the subject of intensive research for years, but it has not been possible to measure some fundamental processes, including the motion of carbon atoms on its surface. This random migration is the atomic origin of the phenomenon of diffusion - the natural motion of particles such as atoms or molecules in gases, liquids or solids. In the atmosphere and the oceans, this phenomenon ensures an even distribution of oxygen and salt. In the technical industries, it is of central importance for steel production, lithium-ion batteries, and fuel cells, to name a few examples. In materials science, diffusion at the surface of solids explains how certain catalytic reactions proceed and many crystalline materials including graphene are grown.

HydroGraph Clean Power has announced that it has opened its 13,000 square foot manufacturing facility in Manhattan, KS for production of its graphene materials.

The company’s patented Hyperion detonation process reportedly achieves high quality graphene at both the lower cost and an environmentally friendly manner due to its low energy consumption and absence of emissions.

An international research group, including teams from CHOSE at the University of Rome Tor Vergata, Hellenic Mediterranean University in Greece and others, has developed a large-area perovskite solar panel with graphene-doped electron transporting layers (ETLs) and functionalized molybdenum disulfide (fMoS₂) buffer layers inserted between the perovskite layer and the hole transporting layer (HTL).

The team reported that with increasing temperatures, the module exhibited a smaller drop in open-circuit voltage than commercially available crystalline silicon panels.

Gerdau Graphene has announced that it has created a new water-based graphene-enhanced architectural paint that is significantly more durable and resistant to abrasion than traditional paints. The new paint could be used on concrete, cement, metal, and asphalt, such as on sidewalks, bicycle lanes, garages, staircases, sports courts, and a wide array of commercial and industrial areas.

Its parent company, Gerdau, reportedly began applying the new paint to its factory floors in March, making it the world’s first large-scale use of a water-based graphene-enhanced architectural paint. The company is already selling its proprietary graphene additives as development prototypes to major paint producers in the Americas.