FUNCTIONALIZED GRAPHENE CATALYSIS FOR ENERGY SYSTEMS

摘要

This presentation will summarize our research work on functionalization for efficient energy conversions, which includes solar cells, fuel cells, Li-ion batteries and sensitive sensors. In particular, surface functionalization and self-assembly approaches have been explored to construct electrodes with high specific surface, high catalytic activity and unique nanostructure while remaining the high conductivity for high power density and high energy density. Self-assembly, nanocomposite, biotechnology and functionalization are used to nanostructure the catalysts possessing not only unique nano-architectures but also smart chemical composition for superior catalytic behaviour. For example, the incident photon-to-charge carrier generation efficiency of photovoltaic devices is significantly boosted, the capacity, battery cycle life are remarkably increased, direct electrochemistry-based biofuel cells for high power density are innovated and high rate of hydrogen storage is accomplished. The enhancement mechanism of these functionalized nanostructured catalysts will be discussed for fundamental nanoscience.