Single-Atom Tungsten-Doped CoP Nanoarrays as a High-Efficiency pH-Universal Catalyst for Hydrogen Evolution Reaction,ACS Sustainable Chemistry & Engineering

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Single-Atom Tungsten-Doped CoP Nanoarrays as a High-Efficiency pH-Universal Catalyst for Hydrogen Evolution Reaction
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2020-09-10 , DOI: 10.1021/acssuschemeng.0c04322
Jun Wu _{1,

2} , Nannan Han ₁ , Shoucong Ning ₃ , Tian Chen ₂ , Chenyu Zhu ₁ , Chunxu Pan ₂ , Haijun Wu ₃ , Stephen J. Pennycook ₃ , Cao Guan ₁

Affiliation

Efficient electrocatalysts for hydrogen evolution reaction (HER) are urgently required to produce renewable clean H₂ 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.

中文翻译：

单原子掺钨CoP纳米阵列作为高效的氢扩散反应pH通用催化剂

迫切需要用于产氢反应（HER）的高效电催化剂来生产可再生的清洁H ₂汽油。然而，开发低成本，高活性，稳定且pH值通用的HER催化剂仍然是一大挑战。在这里，一条可行的解决方案路线是从金属有机框架构建单原子掺杂钨的CoP纳米阵列（W-CoP），该阵列可直接用作无粘合剂，高活性且坚固耐用的pH通用电催化剂。对她。系统的实验结果和密度泛函理论计算均证实，W-CoP与商用Pt / C相比具有竞争优势。单原子的W掺杂剂可产生完整的原子效用，并以更好的活性调节CoP的电子结构。作为进一步的证明，W-CoP催化剂在海水制氢方面也显示出令人鼓舞的性质，具有实际应用的良好潜力。

更新日期：2020-10-05

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