Chinese Journal of Catalysis ›› 2026, Vol. 91: 222-231.DOI: 10.1016/S1872-2067(26)65224-2

• Articles • Previous Articles     Next Articles

Interfacial engineering of an advanced NiV-LDH@MoS2 heterostructure electrocatalyst for efficient alkaline hydrogen evolution

Shihao Yua,b, Yueying Yana,b, Yang Yanga,b, Bohan Yaoa,b, Ziwen Zhua,b, Dewen Wanga, Zhicai Xinga,*(), Xiurong Yanga,b,*()   

  1. a State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin, China
    b School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, Anhui, China
  • Received:2026-01-29 Accepted:2026-04-07 Online:2026-12-18 Published:2026-10-13
  • Supported by:
    National Natural Science Foundation of China(22393930);Science and Technology Development Plan Project of Jilin Province, China(SKL202302029)

Abstract:

The development of efficient and stable non-noble-metal electrocatalysts is crucial for alkaline water electrolysis toward hydrogen production. Herein, a heterostructure comprising NiV-LDH decorated MoS2 nanosheet arrays on carbon cloth (NiV-LDH@MoS2) is fabricated via a facile two-step hydrothermal method. The catalyst exhibits outstanding hydrogen evolution reaction (HER) performance in 1 mol L-1 KOH, requiring an overpotential of only 103 mV to deliver a current density of 10 mA cm-2, with a Tafel slope of 76.9 mV dec-1 and exceptional stability surpassing 1000 h. The characterizations combined with theoretical calculations reveal that the heterointerface induces electron transfer from NiV-LDH to MoS2, effectively modulating the electronic structure. This synergy significantly lowers the water-dissociation energy barrier and optimizes the hydrogen adsorption free energy, thereby collectively accelerating the alkaline HER kinetics. Furthermore, an anion-exchange membrane water electrolyzer assembled with this catalyst achieves a high current density of 1 A cm-2 at 2.26 V and maintains stable operation for over 200 h, underscoring its practical potential. This work provides an effective interfacial-engineering strategy for designing high-performance, low-cost electrocatalysts for the alkaline HER.

Key words: Hydrogen evolution reaction, Layered double hydroxide, MoS2, Heterostructure, Water splitting