Core-shell Au@PtIr nanowires with dendritic alloy shells as efficient bifunctional catalysts toward methanol oxidation and hydrogen evolution reactions
文献类型：期刊论文
| 作者 | Wang, Xiaoqu1; Qi, Jiuhui1; Luo, Xinji1; Yang, Zhongyun1; Fan, Youjun1; Jiang, Zhe1; Liu, Chengzhou1; Yang, Jun2,3,4; Chen, Wei1 |
| 刊名 | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
 |
| 出版日期 | 2021-10-26 |
| 卷号 | 46期号:74页码:36771-36780 |
| 关键词 | Galvanic replacement Nanowires Core-shell construction Methanol oxidation reaction Hydrogen evolution reaction |
| ISSN号 | 0360-3199 |
| DOI | 10.1016/j.ijhydene.2021.08.214 |
| 英文摘要 | Nanocatalysts with combination of unique morphologies and synergistic interactions have a potential to enhance electrocatalytic ability related to the reactions in fuel cells. Here, we show a wet-chemistry-based synthesis of dendritic Au@PtIr nanowires (NWs) with core-shell constructions regarding Te NWs as sacrificial templates for methanol oxidation reaction (MOR) and hydrogen evolution reaction (HER). Regarding the synthesis of Au@PtIr NWs, Au NWs are firstly obtained through galvanic replacement with Te templates, followed by growth of alloy PtIr shells in subsequent seed-mediated growth. The as synthesized core-shell Au@PtIr nanowires combine the advantage of one-dimensional (1D) dendritic feature that facilitate fast electron transport and provide more interfaces and interstices between catalytic active sites and electrolyte, with the synergistic interactions in alloy shells. Consequently, the as-prepared Au@PtIr NWs show good catalytic properties in MOR and HER in terms of higher activity, larger electrochemically active surface areas (ECSAs) and better anti-toxicity than commercial Pt/C. (c) 2021 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved. |
| WOS关键词 | ENHANCED ELECTROCATALYTIC ACTIVITY ; OXYGEN REDUCTION ; HIGH-PERFORMANCE ; FACILE SYNTHESIS ; CARBON ; NANOSTRUCTURES ; NANOPARTICLES ; NANOFRAMES ; NANOTUBES ; GROWTH |
| WOS研究方向 | Chemistry ; Electrochemistry ; Energy & Fuels |
| 语种 | 英语 |
| WOS记录号 | WOS:000709721100015 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/50769]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Fan, Youjun; Yang, Jun; Chen, Wei |
| 作者单位 | 1.Guangxi Normal Univ, Sch Chem & Pharmaceut Sci, Guangxi Key Lab Low Carbon Energy Mat, Guilin 541004, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, 19A Yuquan Rd, Beijing 100049, Peoples R China 4.Nanjing IPE Inst Green Mfg Ind, Nanjing 211100, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Xiaoqu,Qi, Jiuhui,Luo, Xinji,et al. Core-shell Au@PtIr nanowires with dendritic alloy shells as efficient bifunctional catalysts toward methanol oxidation and hydrogen evolution reactions[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2021,46(74):36771-36780. |
| APA | Wang, Xiaoqu.,Qi, Jiuhui.,Luo, Xinji.,Yang, Zhongyun.,Fan, Youjun.,...&Chen, Wei.(2021).Core-shell Au@PtIr nanowires with dendritic alloy shells as efficient bifunctional catalysts toward methanol oxidation and hydrogen evolution reactions.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,46(74),36771-36780. |
| MLA | Wang, Xiaoqu,et al."Core-shell Au@PtIr nanowires with dendritic alloy shells as efficient bifunctional catalysts toward methanol oxidation and hydrogen evolution reactions".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 46.74(2021):36771-36780. |
入库方式： OAI收割
来源：过程工程研究所
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