...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Advanced Materials >Unveiling the Activity Origin of Electrocatalytic Oxygen Evolution over Isolated Ni Atoms Supported on a N-Doped Carbon Matrix
【24h】

Unveiling the Activity Origin of Electrocatalytic Oxygen Evolution over Isolated Ni Atoms Supported on a N-Doped Carbon Matrix

机译：在N掺杂碳基质上支撑的孤立Ni原子上揭示电催化氧放出的活性起源

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Exploring highly efficient electrocatalysts for the oxygen evolution reaction (OER) and unveiling their activity origin are pivotal for energy conversion technologies. Herein, atomically distributed Ni sites over a N-doped hollow carbon matrix are reported as a promising electrocatalyst for OER in alkaline conditions. Significantly boosted activity is observed after the decoration of the active Ni sites with well-controlled coordination geometry. Results of X-ray absorption spectroscopy investigation and density functional theory (DFT) calculation reveal that the effective electronic coupling via the Ni-N coordination can move down the Fermi level and lower the adsorption energy of intermediates, thus resulting in the facilitated OER kinetics.
机译：探索用于氧释放反应（OER）的高效电催化剂并揭示其活性来源对于能量转换技术至关重要。在此，据报道在N掺杂的空心碳基质上原子分布的Ni位点是在碱性条件下用于OER的有希望的电催化剂。在以良好控制的配位几何结构修饰活性镍位点后，观察到活性显着增强。 X射线吸收光谱研究和密度泛函理论（DFT）计算的结果表明，通过Ni-N配位进行有效的电子偶联可以降低费米能级并降低中间体的吸附能，从而促进了OER动力学。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号