Nanoporous Carbon-Coated Bimetallic Phosphides for Efficient Electrochemical Water Splitting
Nanoporous Carbon-Coated Bimetallic Phosphides for Efficient Electrochemical Water Splitting
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DOI：
10.1021/acs.cgd.8b00117
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发表时间：
2018-04
影响因子：
3.8
通讯作者：
Yu Liu;Qishun Wang;Lanlan Wu;Y. Long;Jian Li;Shuyan Song;Hongjie Zhang
中科院分区：
文献类型：
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作者：
Yu Liu;Qishun Wang;Lanlan Wu;Y. Long;Jian Li;Shuyan Song;Hongjie Zhang
开发高效、低成本的水分解生产H2和O2的电催化剂作为替代贵金属催化剂的可持续能源燃料对于关键能源技术的大规模部署至关重要且紧迫。在这里，结合组成、结构和催化机理分析，通过由相应的 Co-Fe 配位聚合物前体衍生的 Co0.7Fe0.3@C 的简单磷化过程合成了多孔 Co0.7Fe0.3P@C 催化剂。由于Fe元素的引入和多孔结构，Co0.7Fe0.3P@C催化剂对析氧反应和水分解表现出增强的电化学活性，与商业贵金属催化剂相当。此外，包覆碳不仅可以促进电子传输，还可以保护活性Co0.7Fe0.3P纳米颗粒，从而具有良好的活性和稳定性。这项工作中这些令人着迷的发现将促进有前途的双金属氧化物的设计和制备......
Developing highly efficient and low-cost electrocatalyst for water splitting to produce H2 and O2 as a sustainable energy fuel to replace noble metal catalyst is vital and urgent for the large-scale deployment of key energy technologies. Here, in combination of composition, structure, and catalytic mechanism analysis, the porous Co0.7Fe0.3P@C catalyst was synthesized by a facile phosphidation process of Co0.7Fe0.3@C which is derived from the corresponding Co–Fe coordination polymer precursors. The Co0.7Fe0.3P@C catalyst shows enhanced electrochemical activity toward oxygen evolution reaction and water splitting due to the incorporation of Fe element and the porous structure, comparable to the commercial noble metal catalyst. Furthermore, the coated carbon can not only promote electronic transmission but also protect the active Co0.7Fe0.3P nanoparticles, resulting in good activity and stability. These fascinating findings in this work would promote the designation and preparation of promising bimetallic ox...