金属化合物作直接甲醇燃料电池阳极催化剂载体的研究进展

发布时间：2018-06-20 17:55

本文选题：电化学 + 燃料电池　；参考：《化工进展》2017年03期

【摘要】：作为直接甲醇燃料电池阳极催化剂的载体,金属化合物因其在强氧化环境中拥有比碳材料更高的耐腐蚀性而日益受到关注。本文重点综述了金属氧化物、金属碳化物和金属氮化物作为载体材料对催化剂性能的改善。总结发现,金属化合物载体的使用对铂基催化剂的稳定性有显著提高,而该类载体形貌和组成对活性组分的粒径、分散度、利用率及催化活性有着重大影响,尤其是金属化合物载体与活性组分间的相互作用对活性组分微观电子结构和能级密度分布的改变,更是直接决定着铂基催化剂对甲醇氧化的催化性能。根据对相关研究结果的总结,提出对金属化合物载体进行结构和功能设计是今后该领域的重要研究方向。
[Abstract]:As a carrier of anode catalyst for direct methanol fuel cell (DMFC), metal compounds have attracted more and more attention because of their higher corrosion resistance than carbon materials in strong oxidation environment. In this paper, the improvement of catalyst performance by metal oxides, metal carbides and metal nitrides as carrier materials is reviewed. It was found that the stability of platinum based catalysts was significantly improved by the use of metal compounds, and the morphology and composition of the supports had a significant effect on the particle size, dispersion, utilization and catalytic activity of the active components. Especially, the interaction between metal support and active component changes the microcosmic electronic structure and energy level density distribution of active component, which directly determines the catalytic performance of platin-based catalyst for methanol oxidation. Based on the summary of related research results, it is proposed that the design of structure and function of metal compound carrier is an important research direction in this field in the future.
【作者单位】：重庆理工大学化学化工学院;
【基金】：国家自然科学基金(21306235,21206202) 重庆市教育委员会科学技术研究项目(KJ130819) 重庆理工大学创新团队项目
【分类号】：TM911.4;TQ426.65

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