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本工作较为全面地归纳了氧还原反应中使用的各种银基催化剂:纯银、碳载银、银复合催化剂、银合金和银-过渡金属氧化物;分别论述了它们的主要发展动态、优缺点和可能的研究方向、催化机理,并对国内外主要的研究成果进行了对比分析.鉴于银合金、银复合催化剂的催化机理研究较为深入,还着重论述了它们的研究发展状况,同时对比了不同学者提出的催化机理、催化剂构效关系.此外,简要阐述了银基催化剂的合成路线:化学还原法、电沉积法和高温煅烧等,并介绍了各合成路线对催化剂的形貌、成分、催化活性产生的影响.最后,对银基催化剂的研究现状进行了小结并指出其今后可能的应用领域,展示出良好的应用前景.
In this work, a variety of silver-based catalysts used in oxygen reduction reactions are more comprehensively summarized: pure silver, silver on carbon, silver composite catalyst, silver alloy and silver-transition metal oxide; respectively discussed their main developments, excellent Shortcomings and possible research directions, catalytic mechanism, and comparative analysis of the major research results at home and abroad.In view of the more in-depth research on the catalytic mechanism of silver alloy and silver composite catalysts, their research and development status is also discussed emphatically, Different scholars put forward the catalytic mechanism, the structure-activity relationship of the catalyst.In addition, the synthesis route of the silver-based catalyst is briefly described: the chemical reduction method, the electrodeposition method and the high temperature calcination, and the synthesis routes are introduced to the morphology, composition, Catalytic activity.Finally, the research status of silver-based catalysts is summarized and its possible future applications are pointed out, showing a good application prospects.