Hydrogen is an ideal alternative energy sources as it is non-polluting and clean. The main commercial materials used for hydrogen production from electrolytic water are precious metals. Their high price has a negative impact on the industrialisation of electrolytic water, and there is an urgent need to research highly active and durable non-precious metal materials to replace them. Inorganic transition metals are of interest due to their high content and low price. Here, we prepared high performance and stable Fe-CoMoO₄ by modifying the geometrical and electronic structures of cobalt molybdate. The overpotential of hydrogen precipitation is only 42 mV at a current density of 10 mA cm⁻² in 1 M KOH solution. Meanwhile, it can be stabilised for 32 h at a current density of 100 mA cm⁻². This work provides a new approach to the study of non-precious metal-based catalysts.

中文翻译：

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Fe 掺杂策略对 CoMoO4 进行改性，实现水的高效电解


氢气是一种理想的替代能源，因为它无污染且清洁。用于电解水制氢的主要商业材料是贵金属。它们的高价格对电解水的工业化产生了负面影响，迫切需要研究高活性和耐用的非贵金属材料来替代它们。无机过渡金属因其高含量和低价格而受到关注。在这里，我们通过修饰钼酸钴的几何和电子结构制备了高性能和稳定的 Fe-CoMoO₄。在 1 M KOH 溶液中，当电流密度为 10 mA ^cm-2 时，氢气沉淀的过电位仅为 42 mV。同时，它可以在 100 mA ^cm-2 的电流密度下稳定 32 小时。这项工作为非贵金属基催化剂的研究提供了一种新方法。