General Synthesis of Multishell Mixed-Metal Oxyphosphide Particles with Enhanced Electrocatalytic Activity in the Oxygen Evolution Reaction

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• 作者：Dr. Bu Yuan Guan ; Dr. Le Yu and Prof. Xiong Wen (David) Lou
• 刊名：Angewandte Chemie
• 出版年：2017
• 出版时间：February 20, 2017
• 年：2017
• 卷：129
• 期：9
• 页码：2426-2429
• 全文大小：1481K
• ISSN：1521-3757

文摘

We report a general approach for the synthesis of multishell mixed-metal oxyphosphide particles. Seven-layer Mn-Co oxide particles were first prepared by thermal treatment of Mn-Co coordination polymer precursors. Afterwards, these multishell Mn-Co oxide particles were further transformed into multishell Mn-Co oxyphosphide particles through a phosphidation reaction. This approach is very versatile and can be applied to synthesize other multishell mixed-metal oxyphosphide particles with different compositions. By applying a constant electrochemical potential, these multishell Mn-Co oxyphosphide particles can be activated to produce Mn-Co oxide/hydroxide species in their nanoshells and then show greatly enhanced electrocatalytic activity in the oxygen evolution reaction (OER).