NETL team converts coal tar pitch into graphene for improved supercapacitors
Researchers at NETL, a U.S. Department of Energy national laboratory, have developed a low-cost process for converting coal tar waste into high-quality graphene. The team stressed that the resulting can increase the performance of energy-storing supercapacitor systems by up to 55%.
Schematic illustration of the synthesis process of 3D graphene. Image from: Small Methods
According to NETL’s Christopher Matranga, one of the authors of the study, graphene has long been considered an ideal supercapacitor electrode material, but its use in commercial devices is limited because there are few methods for producing high-quality graphene at a large scale at a low cost.
Source: http://www.graphene-info.com/netl-team-converts-coal-tar-pitch-graphene-improved-supercapacitors
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