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Nanoporous V-Doped Ni5P4 Microsphere: A Highly Efficient Electrocatalyst for Hydrogen Evolution Reaction at All pH.
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2020-07-28 , DOI: 10.1021/acsami.0c08202 Yuan Rao 1 , Siwen Wang 2 , Ruya Zhang 1 , Shuaihu Jiang 1 , Shan Chen 1 , Yanan Yu 1 , Shujuan Bao 3 , Maowen Xu 3 , Qin Yue 1 , Hongliang Xin 2 , Yijin Kang 1
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2020-07-28 , DOI: 10.1021/acsami.0c08202 Yuan Rao 1 , Siwen Wang 2 , Ruya Zhang 1 , Shuaihu Jiang 1 , Shan Chen 1 , Yanan Yu 1 , Shujuan Bao 3 , Maowen Xu 3 , Qin Yue 1 , Hongliang Xin 2 , Yijin Kang 1
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Hydrogen economy is one of the most promising candidates to replace the current energy system on depleting fossil fuels. As a clean and sustainable way to produce hydrogen, electrocatalytic water splitting attracts ever-increasing interest from the research community. Although the wide application of platinum group metal (PGM) catalysts is limited because of the scarcity and high cost toward hydrogen evolution reaction (HER), the non-PGM electrocatalysts usually suffer from unsatisfactory activity and poor durability. In this work, we report an active and durable V-doped Ni5P4 electrocatalyst that can be used for all-pH HER. Particularly, V–Ni5P4 has an HER activity that is comparable to that of Pt in preferred alkaline media, with overpotentials as low as 13 mV and 295 mV at current densities of 10 and 1000 mA cm–2, respectively. The low-cost V–Ni5P4 that enables ultrahigh current density (i.e., at the level of A cm–2) would be of great interest to the hydrogen production industry.
中文翻译：
纳米多孔V掺杂Ni5P4微球：在所有pH值下都可以进行氢发生反应的高效电催化剂。
氢经济是替代目前消耗矿物燃料的能源系统的最有前途的候选者之一。作为一种清洁，可持续的生产氢气的方法，电催化水分解法引起了研究界的日益增长的兴趣。尽管铂族金属（PGM）催化剂的稀缺性和氢释放反应（HER）的高昂成本限制了其广泛应用，但非PGM电催化剂的活性通常不佳且耐久性差。在这项工作中，我们报告了一种活性持久的V掺杂Ni 5 P 4电催化剂，可用于全pH HER。特别是V–Ni 5 P 4在优选的碱性介质中具有与Pt相当的HER活性，在10和1000 mA cm –2的电流密度下，其超电势分别低至13 mV和295 mV 。能够实现超高电流密度（即，在A cm –2的水平）的低成本V–Ni 5 P 4将对制氢行业引起极大的兴趣。
更新日期：2020-08-19
中文翻译：
纳米多孔V掺杂Ni5P4微球：在所有pH值下都可以进行氢发生反应的高效电催化剂。
氢经济是替代目前消耗矿物燃料的能源系统的最有前途的候选者之一。作为一种清洁，可持续的生产氢气的方法，电催化水分解法引起了研究界的日益增长的兴趣。尽管铂族金属（PGM）催化剂的稀缺性和氢释放反应（HER）的高昂成本限制了其广泛应用，但非PGM电催化剂的活性通常不佳且耐久性差。在这项工作中，我们报告了一种活性持久的V掺杂Ni 5 P 4电催化剂，可用于全pH HER。特别是V–Ni 5 P 4在优选的碱性介质中具有与Pt相当的HER活性，在10和1000 mA cm –2的电流密度下，其超电势分别低至13 mV和295 mV 。能够实现超高电流密度（即，在A cm –2的水平）的低成本V–Ni 5 P 4将对制氢行业引起极大的兴趣。
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