Single-Atom Tungsten-Doped CoP Nanoarrays as a High-Efficiency pH-Universal Catalyst for Hydrogen Evolution Reaction

作者：Jun Wu, Nannan Han, Shoucong Ning, Tian Chen, Chenyu Zhu, Chunxu Pan, Haijun Wu, Stephen J. Pennycook, Cao Guan · 发表于：ACS Sustainable Chemistry & Engineering · 年份：2020 · DOI：10.1021/acssuschemeng.0c04322 · 被引用次数：93 · 研究领域：Electrocatalysts for Energy Conversion、Advanced battery technologies research、Fuel Cells and Related Materials

Efficient electrocatalysts for hydrogen evolution reaction (HER) are urgently required to produce renewable clean H 2 fuel. However, developing low-cost, highly active, stable, and pH-universal HER catalysts remains a big challenge. Here, a facile solution route is carried out to construct single-atom tungsten-doped CoP nanoarrays (W-CoP) from metal organic frameworks, which can be directly used as a binder-free, high-activity, and robust pH-universal electrocatalyst toward HER. The W-CoP shows competitive performance compared with the commercial Pt/C, as confirmed by both systematic experimental results and density functional theory calculation. The single-atom W dopant results in full atom utility and tunes the electronic structure of CoP with better activity. As a further demonstration, the W-CoP catalyst also shows a promising property for seawater hydrogen production, holding good potential for real application.