Mingyang Cai, Weishun Song, Ziling Huang, Xiaoquan Yang, Junjie Fu, Lin Luo, Xueming Su, Hongwei Gu and Xueqin Cao
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引用次数: 0
摘要
析氧反应是水电解的关键半反应，开发有效的电催化剂是析氧反应（OER）的首要任务，因为电催化水裂解制氢为即将到来的能源危机提供了切实可行的解决方案。在此，我们报告了一种由普鲁士蓝类似物（PBAs）通过植酸蚀刻和低温气相硒化制备空心三金属硒化物（confe - se）纳米立方的策略。由于其多组分组成和中空结构的优点，confe - se具有275 mV@10 mA cm−2的低过电位，62.3 mV dec−1的小Tafel斜率和在1.0 M KOH下超过80 h的长期稳定性。本研究为制备PBAs衍生的中空多金属硒化电催化剂提供了一种创新的思路和简单的技术。
Hollow CoNiFe ternary metal selenide electrocatalysts derived from Prussian blue analogues for boosting the oxygen evolution reaction†
The development of effective electrocatalysts is a top priority for the oxygen evolution reaction (OER), which is the crucial half-reaction of water electrolysis, since electrocatalytic water splitting for hydrogen production offers a practical solution to the upcoming energy crisis. Herein, we report a strategy to fabricate hollow ternary metal selenide (CoNiFe–Se) nanocubes derived from Prussian blue analogues (PBAs) by phytic acid etching and low-temperature gas-phase selenization. Due to the advantages of its multi-component composition and hollow structure, CoNiFe–Se exhibited a low overpotential of 275 mV@10 mA cm−2, a small Tafel slope of 62.3 mV dec−1 and a long-term stability of more than 80 h in 1.0 M KOH. This research offers an innovative idea and a straightforward technique for preparing hollow multimetallic selenide electrocatalysts derived from PBAs.
期刊介绍：
Dalton Transactions is a journal for all areas of inorganic chemistry, which encompasses the organometallic, bioinorganic and materials chemistry of the elements, with applications including synthesis, catalysis, energy conversion/storage, electrical devices and medicine. Dalton Transactions welcomes high-quality, original submissions in all of these areas and more, where the advancement of knowledge in inorganic chemistry is significant.
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