• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Advanced Functional Materials >Novel Iron/Cobalt-Containing Polypyrrole Hydrogel-Derived Trifunctional Electrocatalyst for Self-Powered Overall Water Splitting
【24h】

Novel Iron/Cobalt-Containing Polypyrrole Hydrogel-Derived Trifunctional Electrocatalyst for Self-Powered Overall Water Splitting

机译：用于自供电总水分解的新型含铁/钴的聚吡咯水凝胶衍生的三官能电催化剂

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

Development of efficient, low-cost, and durable electrocatalysts for the oxygen reduction reaction (ORR), oxygen evolution reaction (OER), and hydrogen evolution reaction (HER) is of significant importance for many electrochemical devices, such as rechargeable metal-air batteries, fuel cells, and water electrolyzers. Here, a novel approach for the synthesis of a trifunctional electrocatalyst derived from iron/cobalt-containing polypyrrole (PPy) hydrogel is reported. This strategy relies on the formation of a supramolecularly crosslinked PPy hydrogel that allows for efficient and homogeneous incorporation of highly active Fe/Co-N-C species. Meanwhile, Co nanoparticles are also formed and embedded into the carbon scaffold during the pyrolysis process, further promoting electrochemical activities. The resultant electrocatalyst exhibits prominent catalytic activities for ORR, OER, and HER, surpassing previously reported trifunctional electrocatalysts. Finally, it is demonstrated that the as-obtained trifunctional electrocatalyst can be used for electrocatalytic overall water splitting in a self-powered manner under ambient conditions. This work offers new prospects in developing highly active, nonprecious-metal-based electrocatalysts in electrochemical energy devices.
机译：对于许多电化学装置，例如可充电金属空气电池，开发用于氧还原反应（ORR），氧释放反应（OER）和氢释放反应（HER）的高效，低成本和耐用的电催化剂至关重要。 ，燃料电池和水电解槽。在此，报道了一种新的合成三官能电催化剂的方法，该三官能电催化剂衍生自含铁/钴的聚吡咯（PPy）水凝胶。该策略依赖于超分子交联的PPy水凝胶的形成，该凝胶允许高效且均匀地掺入高活性的Fe / Co-N-C物质。同时，在热解过程中还形成了Co纳米颗粒并嵌入到碳支架中，进一步促进了电化学活性。所得的电催化剂对ORR，OER和HER表现出显着的催化活性，超过了先前报道的三官能电催化剂。最后，证明了所获得的三官能电催化剂可以在环境条件下以自供电方式用于电催化总水分解。这项工作为开发电化学能源设备中的高活性，非贵金属基电催化剂提供了新的前景。

著录项

  • 来源
    《Advanced Functional Materials》 |2017年第17期|1606497.1-1606497.11|共11页
  • 作者

    Yang Jia; Wang Xu; Li Bo; Ma Liang; Shi Lei; Xiong Yujie; Xu Hangxun;

  • 作者单位

    Univ Sci & Technol China, CAS Key Lab Soft Matter Chem, Dept Polymer Sci & Engn, Hefei 230026, Anhui, Peoples R China;

    Univ Sci & Technol China, CAS Key Lab Soft Matter Chem, Dept Polymer Sci & Engn, Hefei 230026, Anhui, Peoples R China;

    Univ Sci & Technol China, CAS Key Lab Soft Matter Chem, Dept Polymer Sci & Engn, Hefei 230026, Anhui, Peoples R China;

    Univ Sci & Technol China, CAS Key Lab Soft Matter Chem, Dept Polymer Sci & Engn, Hefei 230026, Anhui, Peoples R China;

    Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China;

    Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Dept Chem, Hefei 230026, Anhui, Peoples R China;

    Univ Sci & Technol China, CAS Key Lab Soft Matter Chem, Dept Polymer Sci & Engn, Hefei 230026, Anhui, Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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