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为开发高效节能电解水催化剂，系统探究了Ru/NC电极的单位面积负载量对其析氢反应(HER)活性的影响。研究结果表明，在1 M KOH电解液中，当负载量为0.56 mg?cm-2时，Ru/NC电极在10 mA?cm-2电流密度下仅需17 mV的过电位，并表现出较低的塔菲尔(Tafel)斜率。进一步分析揭示，过高的负载量会引发传质限制，而过低的负载量则会导致活性位点分布不均。研究表明合理设计电极负载量可有效调控并提升Ru/NC催化剂在HER中的综合性能。
Abstract：In order to develop highly efficient and energy-saving catalysts for water electrolysis, the effect of areal loading of Ru/NC electrodes on their the hydrogen evolution reaction(HER) activity is systematically investigated. The results show that, in a 1 M KOH electrolyte, the Ru/NC electrode with a loading of 0.56 mg?cm-2 only requires a 17 mV overpotential to deliver a current density of 10 mA?cm-2 and exhibits a low Tafel slope. Further analysis reveals that excessive loading leads to mass transfer limitations, whereas insufficient loading causes an uneven distribution of active sites. This study demonstrates that rational optimization of electrode loading can effectively regulate and enhance the overall performance of Ru/NC catalysts in the HER.
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基本信息:
DOI：10.19327/j.cnki.zuaxb.1007-9734.2025.06.010
中图分类号:TQ426;TQ116.21
引用信息:
[1]邢文涛,蔡佳琳,刘培清,等.Ru/NC催化剂的负载量对电解水析氢活性的优化研究[J].郑州航空工业管理学院学报,2025,43(06):77-85+104.DOI:10.19327/j.cnki.zuaxb.1007-9734.2025.06.010.