Hydrogen energy as a new type of clean energy has been widely used. Electrolysis is a highly effective method of producing hydrogen from water. Catalysts with low development costs and high efficiency are the focus of current research. A novel Ni–W–P/Mo catalyst for hydrogen evolution reaction (HER) was synthesized by electrodeposition based on a molybdenum mesh. The experimental results show that when the current density is 10 mA/cm², the best overpotential of Ni–W–P/Mo in alkaline medium is 75 mV. Not only that, the Tafel slope (77 mV/dec) also proves its excellent dynamic performance. In addition, the 60 h stability test at a current density of 10 mA/cm² indicates an excellent long-term stability performance. Compared with the catalysts reported in recent years, the HER performance of Ni–W–P/Mo is much better than that of most nonprecious metal catalysts. The uniform and regular molybdenum network provides a large area of support for the catalyst, which is conducive to the synthesis and reaction of the catalyst. By doping W, the electronic structure of the catalyst is regulated, and the water decomposition is promoted. The stability of the morphology is also an important factor in improving the activity of the catalyst. The amorphous catalyst synthesized by the electrodeposition method in this work provides a new idea for the research of catalytic materials for hydrogen production by electrolysis of water and has important significance for promoting the development of a hydrogen energy economy.

中文翻译：

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用于高效、稳定析氢反应的 Ni-W-P/Mo 电极的电化学合成


氢能作为一种新型的清洁能源得到了广泛的应用。电解是一种从水中生产氢气的高效方法。开发成本低、效率高的催化剂是当前研究的重点。通过基于钼网的电沉积合成了一种用于析氢反应 （HER） 的新型 Ni-W-P/Mo 催化剂。实验结果表明，当电流密度为 10 mA/cm² 时，Ni–W–P/Mo 在碱性介质中的最佳过电位为 75 mV。不仅如此，塔菲尔斜率 （77 mV/dec） 也证明了其出色的动态性能。此外，在 10 mA/cm² 的电流密度下进行的 60 h 稳定性测试表明，该器件具有出色的长期稳定性。与近年来报道的催化剂相比，Ni-W-P/Mo 的 HER 性能远优于大多数非贵金属催化剂。均匀规则的钼网络为催化剂提供了大面积的支撑，有利于催化剂的合成和反应。通过掺杂 W，调节催化剂的电子结构，促进水分解。形貌的稳定性也是提高催化剂活性的重要因素。本工作中通过电沉积法合成的非晶态催化剂为电解水制氢催化材料的研究提供了新的思路，对促进氢能经济的发展具有重要意义。