Self-supporting nanoporous gold-palladium overlayer bifunctional catalysts toward oxygen reduction and evolution reactions

查看全文 作　　者：Yan [1]Wang;Wei [2]Huang;Conghui [3]Si;Jie [3]Zhang;Xuejiao [3]Yan;Chuanhong [2]Jin;Yi [4]Ding;Zhonghua [3]Zhang

机构地区：[1]School of Materials Science and Engineering, University of Jinan, 336 West Road of Nan Xinzhuang, Jinan 250022, China;[2]State Key Laboratory of Silicon Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province and School of Materials Science and Engineering, Zhejiang University, Hangzhou, Hangzhou 310027, China;[3]Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jingshi Road 17923, Jinan 25006 1, China;[4]School of Materials Science and Engineering, Tianjin University of Technology, 391 BinshuiXidao, Xiqing District, Tianjin 300384, China

出　　处：《Nano Research》索引2016年第9卷第12期,共14页

基　　金：The authors gratefully acknowledge financial support by the National Basic Research Program of China (No. 2012CB932800), National Natural Science Foundation of China (Nos. 51371106 and 51222202), and Young Tip-top Talent Support Project (the Organization Department of the Central Committee of the CPC). The Institute of Materials of Ruhr University Bochum (Germany) is acknowledged for the support of SEM and TEM characterization. This work also made use of the resources of the Center of Electron Microscopy of Zhejiang University. 摘　　要：氧减小反应(ORR ) 和氧进化反应(OER ) 是为能量变换 / 存储系统的关键过程,例如燃料房间,金属空气电池,并且水切开。然而,两反应被他们的懒惰动力学严重地限制,因此要求高度活跃、划算、持久的 electrocatalysts。此处,我们通过驾驶 dealloying 的 nanoporous 黄金(NPG ) 的表面 nanoengineering 开发新奇 bifunctional nanocatalysts。Pd overlayers 被取向附生的 layer-by-layer 生长精确扔到 NPG 系带表面上。更重要地,获得的 NPG-Pd overlayer nanocatalysts 展览显著地在碱的媒介向 ORR 和 OER 提高了 electrocatalytic 活动,对 stateof- 艺术 Pt/C 催化剂的 benchmarked。改进 electrocatalytic 性能被 NPG,从 Pd overlayers 的精确控制的提高的 Pd 利用效率,和变化的唯一的三维的 nanoarchitecture 在电子结构文饰,作为由密度揭示了功能的理论计算。 关键词：双功能催化剂金属空气电池氧还原反应纳米多孔自支撑 PT/C催化剂表面纳米化演化

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Self-supporting nanoporous gold-palladium overlayer bifunctional catalysts toward oxygen reduction and evolution reactions

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