Formation of Ni 2.8 S 2 -based heterojunctions with dual non-interfacial metal vacancies for enhanced hydrogen evolution performance

作者：Zongpeng Wang, Longfei Ding, Xiangyang Li, Yuanmo Lin, Ting Jiang, Zhiping Lin, Shougang Chen · 发表于：Dalton Transactions · 年份：2025 · DOI：10.1039/d5dt02557e · 被引用次数：3 · 研究领域：Electrocatalysts for Energy Conversion、Metalloenzymes and iron-sulfur proteins、Ammonia Synthesis and Nitrogen Reduction

counterpart, the vacancy-enriched heterostructure exhibits markedly improved hydrogen evolution activity. Density functional theory (DFT) calculations further reveal that the dual non-interfacial vacancies induce a downward shift in the Ni d-band center, which plays a pivotal role in boosting catalytic performance. This study underscores the importance of non-interfacial metal vacancies in designing high-performance electrocatalysts for hydrogen evolution and offers valuable insights for developing efficient, low-cost, and non-precious metal-based catalysts.