淡江大學機構典藏:Item 987654321/124079
English  |  正體中文  |  简体中文  |  全文笔数/总笔数 : 64185/96959 (66%)
造访人次 : 11642357      在线人数 : 16015
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
搜寻范围 查询小技巧：
  • 您可在西文检索词汇前后加上"双引号"，以获取较精准的检索结果
  • 若欲以作者姓名搜寻，建议至进阶搜寻限定作者字段，可获得较完整数据
    •  进阶搜寻


    jsp.display-item.identifier=請使用永久網址來引用或連結此文件: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/124079


    题名: Boron-tethering and regulative electronic states around iridium species for hydrogen evolution
    作者: D. Xue;J. Cheng;P. Yuan;B. A. Lu;H. Xia;C. C. Yang;C. L. Dong*;H. Zhang;F. Shi;S. C. Mu;J. S. Hu;S. G. Sun;J. Zhang*
    日期: 2022-02-12
    上传时间: 2023-05-12 12:08:49 (UTC+8)
    出版者: Wiley-VCH GmbH
    摘要: The performance of single-atom electrocatalysts usually suffers from attenuation due to high energy states, especially in harsh environments. Therefore, as high-efficiency electrocatalysts for hydrogen reduction reaction (HER), supported metal nanoclusters (NCs) with maximum metal atom efficiency are promising, yet the genuine mechanism involving rational orbital modulation is still arguable. Herein, the conjugating effect between electron-donor boron (B)-tethering engineering and iridium (Ir) that facilitates the electron capture of Ir atoms is explored, achieving highly dispersive Ir-NCs confined in N, B co-doped defective carbon (Ir@NBD-C). The Ir@NBD-C catalyst achieves displays remarkable high activity for HER in a pH-universal range, in particular, with an ultralow overpotential of 7 mV (10 mA cm−2), high mass activity of 652.2 A
    , and turnover frequency (TOF) of 1.90 H2 S−1 (100 mV) in 1.0 m KOH, outperforming almost all state-of-the-art HER electrocatalysts. Operando characterizations and theoretical calculations unveil that the outstanding catalytic activity can attribute to the optimal binding to hydrogen intermediate species (H*) derived from the tunable and favorable electronic structure of the Ir site through the tethering of B heteroatoms. Undoubtedly, this work brings new insight into the design of catalysts with high intrinsic activity and thermodynamic stability.
    關聯: Advanced Functional Materials 32(21), 2113191
    DOI: 10.1002/adfm.202113191
    显示于类别:[電機工程學系暨研究所] 期刊論文

    文件中的档案:

    档案 描述 大小格式浏览次数
    index.html0KbHTML72检视/开启

    在機構典藏中所有的数据项都受到原著作权保护.

    TAIR相关文章

    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - 回馈