DESIGN AND FABRICATION OF Pt NANOCLUSTERS ON POLYBENZOIMIDAZOLE-WRAPPED CARBON NANOTUBES AND EVALUATION FOR OXYGEN REDUCTION REACTION ACTIVITY

摘要

The commercialization of proton exchange membrane fuel cells (PEFC) can help to mitigate global warming and reduce our dependence on fossil fuels. The e?cient cathodic electrocatalysts for oxygen reduction are largely unavailable, so fundamental progress in the design of these catalysts is highly needed. Recently, Pt clusters provide a promising approach to reduce Pt usage and enhance Pt catalysis toward oxygen reduction reaction (ORR). In this study, we designed and fabricated Pt nanoclusters immobilized on the surfaces of polymer-wrapped carbon nanotubes. In this study, we used multi-walled carbon nanotubes (MWNTs) and PBI as the carbon support and the polymer, respectively [1,2].