科研之友
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摘要
Benefiting from its high oxygen reduction activity comparable with platinum catalyst, the transition metal and nitrogen co-doped carbon catalyst (M-N/C) has become one of the most important non-noble metal catalysts, and it is recognized as the most promising non-noble metal catalyst, as substitute of precious platinum catalyst, in proton exchange membrane fuel cells in the future. Metal organic frameworks (MOFs) , a new class of crystalline porous materials with regular porous structure, high porosity , controllable morphology and size, and tunable ligands, have been regarded as perfect precursors for preparing various high-performance doped carbon catalysts. The catalysts derived from MOF often show superior structure and performance compared with those derived from conventional precursors, making them more prospective for applying in the fuel cells. Actually, it has become one of the most attractive topics to prepare M-N/C catalysts with MOFs as precursors in recent years. In this paper, we systematically introduce the research works on MOFs derived M-N/C catalysts at home and abroad in recent years, including the preparation technologies of MOF derived M-N/C catalysts, the strategies of improving the structure and performance of MOF derived carbon catalysts, as well as the research progress on the characterization technologies of such catalysts. Finally, we indicate the problems and challenges existed in MOF derived M-N/C catalysts , propose possible strategies/measures to solve the problems. The development and application of this type of new catalysts are also prospected.
