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<p>Driven by the global transition to renewable energy, electrocatalytic hydrogen production has attracted significant attention for its green, environmentally friendly nature. However, it faces challenges such as high hydrogen evolution overpotential. Thus, the design of highly active and stable electrocatalytic materials for operation at industrially relevant current densities is imperative. Manganese-based compounds are promising because of their low price and high crustal abundance. Owing to their considerable activity, manganese oxides and sulfides are considered efficient electrocatalysts for facilitating hydrogen evolution. This work leverages hybridization between the p and d orbitals of selenium to regulate the electronic, crystal, and morphological structures of manganese selenide (MnSe), enabling their fabrication on nickel foam (NF) and assessment of their performance. Under optimal conditions, an electrode constructed from MnSe/NF has a hydrogen evolution overpotential (<i>η</i><sub>10</sub>) of 169&#xa0;mV, a reduction of 59&#xa0;mV compared with that of the bare NF electrode (228&#xa0;mV). The electrochemically active area, Tafel slope, and charge transfer resistance are 153.1 cm<sup>2</sup>, 108.6&#xa0;mV/dec, and 34.29 Ω, respectively. In summary, the MnSe catalyst demonstrates excellent hydrogen evolution performance.</p>

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Study on the Preparation and Hydrogen Evolution Performance of Rod-Like Manganese Selenide

  • 期刊论文

  • 发表日期：

    2026年4月30日

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  • Ming Yu,
  • Qian Li,
  • Lili Gao,
  • Xihong He,
  • Jinjing Du,
  • Aiping Peng,
  • Yaqing Weng

摘要

Driven by the global transition to renewable energy, electrocatalytic hydrogen production has attracted significant attention for its green, environmentally friendly nature. However, it faces challenges such as high hydrogen evolution overpotential. Thus, the design of highly active and stable electrocatalytic materials for operation at industrially relevant current densities is imperative. Manganese-based compounds are promising because of their low price and high crustal abundance. Owing to their considerable activity, manganese oxides and sulfides are considered efficient electrocatalysts for facilitating hydrogen evolution. This work leverages hybridization between the p and d orbitals of selenium to regulate the electronic, crystal, and morphological structures of manganese selenide (MnSe), enabling their fabrication on nickel foam (NF) and assessment of their performance. Under optimal conditions, an electrode constructed from MnSe/NF has a hydrogen evolution overpotential (η10) of 169 mV, a reduction of 59 mV compared with that of the bare NF electrode (228 mV). The electrochemically active area, Tafel slope, and charge transfer resistance are 153.1 cm2, 108.6 mV/dec, and 34.29 Ω, respectively. In summary, the MnSe catalyst demonstrates excellent hydrogen evolution performance.