Integrated Three-Dimensional Carbon Paper/Carbon Tubes/Cobalt-Sulfide Sheets as an Efficient Electrode for Overall Water Splitting
Integrated Three-Dimensional Carbon Paper/Carbon Tubes/Cobalt-Sulfide Sheets as an Efficient Electrode for Overall Water Splitting
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DOI：
10.1021/acsnano.5b07126
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发表时间：
2016-02-01
期刊：
影响因子：
17.1
通讯作者：
Zhang, Xin-bo
中科院分区：
文献类型：
--
作者：
Wang, Jun;Zhong, Hai-xia;Zhang, Xin-bo
开发一种同时适用于析氢反应(HER)和析氧反应(OER)的高效催化电极，对于清洁能源和可再生能源的转化和储存所涉及的水的整体分解具有重要意义。在本研究中，碳纸/碳管/硫化钴作为一种集成的三维(3D)阵列电极，在碱性介质中用于低成本、高能效的HER和OER。令人印象深刻的是，与之前报道的非贵金属催化剂相比，这种电极表现出了优越的性能，这得益于独特的3D阵列结构，增加了活性中心的暴露和可访问性，改善了矢量电子传输能力，并增强了气体产品的释放。这种集成的多功能电极使整个水的分解以更直接和更顺利的方式进行，减少了设备。
The development of an efficient catalytic electrode toward both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) is of great significance for overall water splitting associated with the conversion and storage of clean and renewable energy. In this study, carbon paper/carbon tubes/cobalt-sulfide is introduced as an integrated three-dimensional (3D) array electrode for cost-effective and energy efficient HER and OER in alkaline medium. Impressively, this electrode displays superior performance compared to non-noble metal catalysts reported previously, benefiting from the unique 3D array architecture with increased exposure and accessibility of active sites, improved vectorial electron transport capability, and enhanced release of gaseous products. Such an integrated and versatile electrode makes the overall water splitting proceed in a more direct and smooth manner, reducing devices.