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Direct preparation of core-shell platinum cathode in membrane electrode assembly catalyst layer for polymer electrolyte fuel cell

机译:用于聚合物电解质燃料电池的膜电极组装催化剂层中核心壳铂阴极的直接制备

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摘要

Core-shell catalyst has been attracting attention as a low-Pt catalyst for PEFC cathode. However, its mass production method has not yet been established. In this paper, a novel method suitable for continuous production of low-platinum catalyst layer for PEFC is proposed. Catalyst layer of carbon-supported Pd@Pt core-shell catalyst (Pd@Pt/C) is fabricated by using Cu underpotential deposition (UPD) followed by surface-limited redox replacement (SLRR) directly to the porous catalyst layer made of Pd core (Pd/C). The distribution of Pt corresponded well with that of Pd throughout the catalyst layer, indicating that the core-shell reaction occurs in the entire catalyst layer. Pd@Pt/C shows 1.8 times higher mass activity than Pt/C, which is comparable to Pd@Pt/C prepared by conventional microgram-scale method. (C) 2020 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
机译:核 - 壳催化剂一直吸引PEFC阴极的低Pt催化剂。但是,其批量生产方法尚未建立。本文提出了一种适用于连续生产PEFC的低铂催化剂层的新方法。通过使用Cu的下电沉积(UPD),然后将表面积有限的氧化还原置换(SLRR)直接到Pd芯的多孔催化剂层,通过使用Cu的催化沉积(UP)来制造碳负载的PD核 - 壳催化剂(Pd @ Pt / c)。 (PD / C)。 Pt的分布与整个催化剂层的Pd的分布相对应良好,表明核 - 壳反应发生在整个催化剂层中。 PD @ Pt / c显示比PT / C高1.8倍,其与通过常规微克法制率制备的PD @ Pt / C相当。 (c)2020氢能源出版物LLC。 elsevier有限公司出版。保留所有权利。

著录项

  • 来源
    《International journal of hydrogen energy》 |2020年第28期|14547-14551|共5页
  • 作者单位

    Shinshu Univ Dept Chem & Mat 3-15-1 Tokida Ueda Nagano 3868567 Japan;

    Shinshu Univ Dept Chem & Mat 3-15-1 Tokida Ueda Nagano 3868567 Japan;

    Shinshu Univ Ctr Energy & Environm Sci 3-15-1 Tokida Ueda Nagano 3868567 Japan;

    Shinshu Univ Dept Chem & Mat 3-15-1 Tokida Ueda Nagano 3868567 Japan|Shinshu Univ Res Initiat Supra Mat 3-15-1 Tokida Ueda Nagano 3868567 Japan|Tokyo Denki Univ Dept Appl Chem Adachi Ku Tokyo 1208551 Japan;

    Shinshu Univ Dept Chem & Mat 3-15-1 Tokida Ueda Nagano 3868567 Japan|Shinshu Univ Ctr Energy & Environm Sci 3-15-1 Tokida Ueda Nagano 3868567 Japan|Shinshu Univ Res Initiat Supra Mat 3-15-1 Tokida Ueda Nagano 3868567 Japan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Polymer electrolyte fuel cell; Core-shell catalyst; Cu underpotential deposition; Pd@Pt/C; Cathode catalyst layer; Mass production;

    机译:聚合物电解质燃料电池;核 - 壳催化剂;Cu下电沉积;Pd @ Pt / C;阴极催化剂层;批量生产;
  • 入库时间 2022-08-18 22:24:10

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