Nanostructured NiMoO_4 as active electrocatalyst for oxygen evolution

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英文篇名：Nanostructured NiMoO_4 as active electrocatalyst for oxygen evolution 作者：Xinyue ; Zhao ; Jing ; Meng ; Zhenhua ; Yan ; Fangyi ; Cheng ; Jun ; Chen 英文作者：Xinyue Zhao;Jing Meng;Zhenhua Yan;Fangyi Cheng;Jun Chen;Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University; 英文关键词：Electrocatalysis;;Nickel;;Molybdenum;;Oxide;;Oxygen evolution 中文刊名：FXKB 英文刊名：中国化学快报(英文版) 机构：Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University; 出版日期：2019-02-15 出版单位：Chinese Chemical Letters 年：2019 期：v.30 基金：financially supported by the Ministry of Science and Technology(No. 2017YFA0206700);; the National Natural Science Foundation of China(No. 51571125) and Ministry of Education(No. B12015) 语种：英文; 页：FXKB201902009 页数：5 CN：02 ISSN：11-2710/O6 分类号：69-73

摘要

It is desirable to exploit cost-effective and earth-abundant catalysts for the oxygen evolution reaction (OER) in developing electrochemical energy conversion and storage technologies. Here we report a facile hydrothermal synthesis of NiMo04 nanorods as active and stable OER catalyst in alkaline condition. The prepared NiMoO_4 nanorods exhibit a considerably low overpotential of 340 mV at the current density of10 mA/cm~2 and a low Tafel slope of 45.6 mV/dec, which is comparable to the benchmark Ru02.Furthermore, the performance of NiMoO_4 significantly surpasses binary NiO and MoO_3 oxides due to enhanced charge transfer and promoted formation of catalytically active Ni~(3+) species. The results highlight the importance of designing ternary oxides in oxygen electrocatalysis.
        It is desirable to exploit cost-effective and earth-abundant catalysts for the oxygen evolution reaction (OER) in developing electrochemical energy conversion and storage technologies. Here we report a facile hydrothermal synthesis of NiMo04 nanorods as active and stable OER catalyst in alkaline condition. The prepared NiMoO_4 nanorods exhibit a considerably low overpotential of 340 mV at the current density of10 mA/cm~2 and a low Tafel slope of 45.6 mV/dec, which is comparable to the benchmark Ru02.Furthermore, the performance of NiMoO_4 significantly surpasses binary NiO and MoO_3 oxides due to enhanced charge transfer and promoted formation of catalytically active Ni~(3+) species. The results highlight the importance of designing ternary oxides in oxygen electrocatalysis.

引文

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