Novel synthetic process of graphene shell for energy materials and devices
Heeyeon Kim
Korea Institute of Energy Research, South Korea
: J Pharm Drug Deliv Res
Abstract
Graphene is one-layer carbon atoms arranged in a hexagonal lattice, which has many superior properties such as mechanical strength, specific surface area, heat and electron conductivity, and high transparency. For the past decades, most researchers have worked for the development of defect free graphene, because graphene often lose its inherent properties even by small defects. However, when graphene is used for catalytic applications such as protective layer of nano metal catalyst, proper amounts of defects can boost the catalytic performance. For the synthesis of porous graphene shell, we have developed single-step chemical vapor deposition (CVD) technique. We have synthesized core-shells type catalysts consisting of Pt or Co nanocore with porous graphene shells. The resultant core-shell catalysts showed high performance with longterm stability in applications for fuel cell catalyst, secondary battery electrode materials, and hydrogen evolution reaction catalyst.
Biography
