The development of excellent-performance carbon-based catalysts is one of the most imperative research targets for the realization of fuel cells. Heteroatoms doped graphene shows remarkable promises as non-metal catalysts toward oxygen reduction reaction (ORR). Even through it has been widely recognized that the species and amount of chemical dopants are most important factors in achieving high oxygen reduction reaction catalytic activities of carbon materials, the actual catalytic mechanism is still under debate. Researchers found that the catalytic activity is closely related to defects. Trifunctional metal free catalyst was designed and it showed better activities than the N-doping graphene. In our studies, three-dimensional graphene with defects, dopants and combination of the two are synthesized and evaluated as ORR catalyst. We explore the catalytic mechanism of dopants and defects in 3D graphene for ORR, which has played a guiding role in the design of ORR catalyst.

Exploration of dopants and defects for oxygen reduction reaction in three dimensional graphene

254th National Meeting (2017)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.