Citation: Fangfang Ren, Wei Qiao, Yubin Kuang, Yajing Xie, Ligang Feng. Efficient Pt electronic states regulation with hybrid nickel selenide for methanol electrolysis[J]. Chinese Chemical Letters, ;2026, 37(7): 111816. doi: 10.1016/j.cclet.2025.111816 shu

Efficient Pt electronic states regulation with hybrid nickel selenide for methanol electrolysis

Fangfang Ren ^{a, b} ,
Wei Qiao ^{a, b} ,
Yubin Kuang ^b ,
Yajing Xie ^b ,
Ligang Feng ^{b, *,}

a.
College of Chemical and Environmental Engineering and Instrumental Analysis Center, Yancheng Teachers University, Yancheng 224007, China
b.
School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China

ligang.feng@yzu.edu.cn

Received Date: 13 June 2025
Revised Date: 2 September 2025
Accepted Date: 9 September 2025
Available Online: 9 September 2025

Figures(6)

Achieving efficient and sustainable hydrogen production from methanol electrolysis requires significant advances in catalyst design. In this study, we present a novel strategy where nickel selenide, featuring distinct crystal phases, anchors on mesoporous hollow carbon spheres to synergistically enhance the activity of Pt for methanol-assisted water splitting reactions. The heterostructured NiSe/NiSe₂ nanosheets modulate the electronic structure of Pt, positioning it closer to an optimal thermodynamic state, and creating a highly oxophilic environment that accelerates charge transfer and optimizes the adsorption and desorption of reaction intermediates. The engineered hybrid catalyst exhibits exceptional enhancements in both mass and specific activity for methanol oxidation, significantly outperforming commercial catalysts. In addition, the catalyst exhibits a high electroactive surface area, an abundance of active sites, fast catalytic kinetics, and excellent stability. Notably, a methanol electrolyzer utilizing this catalyst achieves a current density of 10 mA/cm² at only 0.67 V, a remarkable 1.08 V reduction compared to the voltage required for conventional water electrolysis (1.75 V). This work provides a transformative strategy for designing high-performance electrocatalysts, offering new pathways for more efficient and sustainable hydrogen production through methanol electrolysis.
- Nickel selenide,
- Mesoporous hollow carbon spheres,
- Methanol oxidation,
- Hydrogen production,
- Anti-poisoning
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