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Low over-potential cathode synthesized using a binary metal self-templated molybdenum reinforced method for highly efficient hydrogen evolution
International Journal of Hydrogen Energy ( IF 7.2 ) Pub Date : 2024-03-23 , DOI: 10.1016/j.ijhydene.2024.03.201
Fan Wang , Weiqi Guo , Jinyi Wang , Zhibo Ren , Yudong Gong , Tao Wang

To solve the problem of renewable energy generation fluctuation, water splitting for hydrogen generation is proposed, which can store renewable energy as hydrogen energy. Low overpotential cathode materials can effectively reduce the cost of hydrogen production. Here, a new NiMo/NMF electrode was prepared using a hydrothermal coupled H reduction method. Three-dimensional NiMo nanorod arrays were constructed by modulating the ion dissolution and surface epitaxial growth process of the electrode substrate. The influence of different hydrothermal reaction and H reduction conditions on the electrochemical performance of the electrode was investigated. Under optimum preparation conditions, the NiMo/NMF electrode exhibits a extremely low overpotentials of 158 mV at 500 mA cm (30% wt. KOH alkaline medium), which can serve for preparing high efficiency and economy electrodes by in-situ integration of high active components on metal foam substrate. The NiMo/NMF electrode is a high-performance electrocatalytic cathode material with great prospects for industrial applications.

中文翻译:

使用二元金属自模板钼增强方法合成低过电位阴极,实现高效析氢

为了解决可再生能源发电量波动的问题,提出了水分解制氢技术,可以将可再生能源储存为氢能。低过电位正极材料可以有效降低制氢成本。在这里,采用水热耦合 H 还原方法制备了新型 NiMo/NMF 电极。通过调节电极基底的离子溶解和表面外延生长过程构建了三维NiMo纳米棒阵列。研究了不同水热反应和H还原条件对电极电化学性能的影响。在最佳制备条件下,NiMo/NMF电极在500 mA cm(30%wt. KOH碱性介质)下表现出158 mV的极低过电位,可通过原位集成高活性材料制备高效、经济的电极。金属泡沫基材上的部件。 NiMo/NMF电极是一种高性能电催化阴极材料,具有广阔的工业应用前景。
更新日期:2024-03-23
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