| 曹蓉,汪梦雅,夏杰桢,吴琪.化学通报,2022,85(5):547-552. |
| 燃料电池中Pt基催化剂对CO的催化氧化 |
| Catalytic Oxidation of CO by Pt-based Catalysts in Fuel Cells |
| 投稿时间：2021-08-22 修订日期：2021-10-08 |
| DOI： |
| 中文关键词: Pt基催化剂 CO催化氧化 催化剂载体 燃料电池 催化剂活性 |
| 英文关键词:Pt-based catalyst CO catalytic oxidation Catalyst support Fuel cells Catalyst activity |
| 基金项目:藏财教指[2021]1-21(二维电催化材料的理论研究与设计)的资助; 西藏科技厅中央引导地方项目(基于青稞秸秆水热炭/黑色二氧化钛复合材料在有害有机物吸附降解中的推广应用研究 |
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| 中文摘要: |
| 燃料电池具有燃料多样性、噪声低、对环境污染小等优势，近年来备受研究者关注。然而，电池中的贵金属催化剂极易被少量的CO毒化，成为制约其商业化的一大障碍。因此设计出高性能的催化剂，对于推动燃料电池的发展十分关键。文章综述了燃料电池中铂（Pt）基催化剂对CO催化氧化的研究现状，首先探讨了CO催化氧化机理以及CO在Pt金属表面化学吸附的机理，其次详细介绍了Pt金属负载型催化剂、双金属催化剂以及助催化剂在催化反应中的不同作用，然后简单分析了影响Pt基催化剂性能的其他因素。并对燃料电池中Pt基催化剂的研究方向做了进一步的展望，旨在为燃料电池中CO催化氧化的发展开拓新思路。 |
| 英文摘要: |
| Fuel cells have the advantages of fuel diversity, low noise, and low environmental pollution, and have attracted attention from researchers in recent years. However, the noble metal catalyst in the battery is easily poisoned by a small amount of CO, which has become a major obstacle to its commercialization. Therefore, the design of high-performance catalysts is critical to promoting the development of fuel cells. This article reviews the research status of platinum (Pt)-based catalysts in the catalytic oxidation of CO in fuel cells. First, the mechanism of CO catalytic oxidation and the mechanism of CO chemisorption on the surface of Pt metal are discussed. Second, the different roles of Pt metal-supported catalysts, bimetallic catalysts and co-catalysts in the catalytic reaction are introduced in detail. Then some other factors affecting the performance of Pt-based catalysts are simply analyzed. The research direction of Pt-based catalysts in fuel cells is further prospected, aiming to open up new ideas for the development of CO catalytic oxidation in fuel cells. |
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