中文关键词:燃料电池氧还原反应Pt基催化剂表面修饰 英文关键词:Fuel cellsOxygen reduction reactionPlatinum-based catalystsSurface-modified 基金项目:国家自然科学基金项目(21802013,21706019)资助

作者	单位	E-mail
吴光平	中北大学化学工程与技术学院	pingguangwu1989@163.com
王 洪	重庆师范大学化学学院
师锦华	中北大学化学工程与技术学院
聂瑶	重庆师范大学化学学院	nieyao817@gmail.com

摘要点击次数:201 全文下载次数:0 中文摘要: 氧气还原反应是燃料电池中的重要电极反应，但其动力学过程非常迟缓，需高度依赖资源稀缺、价格高昂的贵金属Pt。但Pt基催化剂不仅价格高昂，而且耐久性也不足，严重阻碍了燃料电池的产业化进程. 对Pt基纳米催化剂进行表面功能化修饰可有效优化和提升其氧还原活性和稳定性。本文系统综述了最近几年表面修饰型Pt基氧还原催化剂的最新研究，着重探讨了表面修饰物的选择、表面修饰的手段和策略以及表面修饰前后对催化剂氧还原性能的影响等比较，并指出该类型催化剂未来发展方向。 英文摘要: Oxygen reduction reaction (ORR) is of utmost importance in fuel cell technologies. Nevertheless, the ORR is kinetically very sluggish and strongly relies on precious and vulnerable platinum-based catalysts, which serious hampers the large-scale production of hydrogen-powered fuel cell vehicles. Modifying Pt nanoparticles surfaces with metal clusters, molecules, ions, organic or inorganic compounds can lead to an optimized Pt electronic structure which is beneficial to ORR operation. In this review, we summarize the recent advancements in the area of surface-modified Pt-based electrocatalysts for ORR with emphasis on introducing the design strategies and synthesis methodologies. The integration of these catalysts into fuel cell operations and the resulting performance/durability, are also discussed. Meanwhile, the insights into the research directions are proposed in order to shed light on the future development of surface-modified Pt-based ORR catalysts. 查看全文查看/发表评论下载PDF阅读器 相关附件：版权转让声明书 -->