| 水诱导磷化镍腐蚀及腐蚀抑制 |
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| 引用本文： | 杨博,吕功煊,张旭强,马建泰.水诱导磷化镍腐蚀及腐蚀抑制[J].无机化学学报,2022,38(7):1337-1349. |
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| 作者姓名： | 杨博 吕功煊 张旭强 马建泰 |
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| 作者单位： | 中国科学院兰州化学物理研究所, 羰基合成与选择氧化国家重点实验室, 兰州 730000;中国科学院大学, 北京 100049;兰州大学化学化工学院, 兰州 730000 |
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| 基金项目： | 国家重点研发计划(No.2018YFB1502004)资助。 |
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| 摘 要： | 过渡金属磷化物作为助催化剂广泛应用于电催化、光(电)催化、电化学储能等领域，但其在水介质中的稳定性研究较少。我们以磷化镍(NixP)作为研究对象，详细研究了所制备的NixP与水的反应行为。研究结果表明： NixP与水反应生成H2，同时自身被氧化生成PO43-和Ni2+，发生严重的化学腐蚀。腐蚀的程度与NixP的晶体结构、元素比例等因素有关。通过在NixP表面沉积NiO、ZnO、TiO2保护层可显著抑制NixP的化学腐蚀，提高NixP在水介质中的抗腐蚀能力。
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| 关 键 词： | 过渡金属磷化物 腐蚀 金属氧化物保护层 稳定性 |
| 收稿时间： | 2021/12/28 0:00:00 |
| 修稿时间： | 2022/3/30 0:00:00 |
Nickel Phosphide Corrosion Induced by Water and Corrosion Inhibition |
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| Institution: | State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China;University of Chinese Academy of Sciences, Beijing 100049, China;College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China |
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| Abstract: | Transition metal phosphides as cocatalysts have been widely used in electrocatalysis, photoelectrocatalysis, and electrochemical energy storage. But its stability in water medium is seldom studied. Nickel phosphide (NixP) was synthesized and the reaction of NixP with H2O was studied in detail. The results showed that serious corrosion of NixP occurred when NixP was dispersed in the water while H2 was generated. At the same time, the corrosion products of PO43- and Ni2+ ions were detected. Such NixP corrosion in water is highly dependent on NixP crystal structure and components. The deposition of NiO, ZnO, and TiO2 metal oxide protective layer on NixP can improve the anticorrosion ability of NixP in the aqueous medium. |
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| Keywords: | transition metal phosphide corrosion metal oxide protective layer stability |
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