Hollow Chevrel‐Phase NiMo3S4 for Hydrogen Evolution in Alkaline Electrolytes |
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| Authors: | Dr Jun Jiang Prof?Dr Minrui Gao Wenchao Sheng Prof?Dr Yushan Yan |
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| Institution: | 1. http://yan.cbe.udel.edu;2. Department of Chemical and Biomolecular Engineering, Center for Catalytic Science and Technology, University of Delaware, Newark, DE, USA;3. Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei, China |
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| Abstract: | Electrochemical water splitting to generate molecular hydrogen requires catalysts that are cheap, active, and stable, particularly for alkaline electrolyzers, where the cathodic hydrogen evolution reaction is slower in base than in acid even on platinum. Herein, we describe the synthesis of new hollow Chevrel‐phase NiMo3S4 and its alkaline hydrogen evolution reaction (HER) performance: onset potential of ?59 mV, Tafel slope of 98 mV per decade, and exchange current density of 3.9×10?2 mA cm?2. This Chevrel‐phase chalcogenide also demonstrates outstanding long‐term stability under harsh HER cycling conditions. Chevrel‐phase nanomaterials show promise as efficient, low‐cost catalysts for alkaline electrolyzers. |
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| Keywords: | alkaline hydrogen evolution chevrel phase electrocatalysts NiMo3S4 water splitting |
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