Simultaneous formation of trimetallic Pt-Ni-Cu excavated rhombic dodecahedrons with enhanced catalytic performance for the methanol oxidation reaction
Simultaneous formation of trimetallic Pt-Ni-Cu excavated rhombic dodecahedrons with enhanced catalytic performance for the methanol oxidation reaction作者机构：School of Physics School of Materials Science and Engineering Sun Yat-sen University Guangzhou 510275 China Collaborative Innovation Center of Sustainable Energy Materials Guangxi Key Laboratory of Electrochemical Energy Materials State Key Laboratory of Processing for Non-ferrous Metal and Featured Materials Guangxi University Nanning 530004 China
出 版 物：《Nano Research》 (纳米研究（英文版）)
年 卷 期：2018年第11卷第9期
页 面：4786-4795页
核心收录：
学科分类：07[理学] 0701[理学-数学] 070101[理学-基础数学]
基 金：supported by the Major International (Regional) Joint Research Project 国家973计划 广东省自然科学基金
主 题：trimetallic rhombic dodecahedron excavated corrosion stepped atoms
摘 要：Multimetallic Pt-based alloys with excavated structures have attracted great interest owing to their compositional and morphological tunability, high specific surface areas, and impressive electro-catalytic activities. Herein, we report the first facile one-pot synthesis of trimetallic Pt-Ni-Cu highly excavated rhombic dodecahedrons （ERDs） with a yield approaching 100%. More importantly, these highly uniform nanocrystals have three-dimensionally accessible excavated surfaces, where abundant stepped atoms are observed. Benefiting from the highly excavated rhombic dodecahedral structures, electronic and synergistic effects within the trimetallic allo3~ and abundant stepped atoms, the as-prepared trimetallic Pt-Ni-Cu ERDs exhibit an enhanced electro-catalytic performance for the electro-oxidation of methanol compared to commercial Pt/C and bimetallic Pt-Cu ERDs and Pt-Ni-Cu solid rhombic dodecahedrons solid rhombic dodecahedrons （SRDs）.
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