期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 60, 期 21, 页码 11959-11965出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202100011
关键词
dynamic understanding; electrochemical CO2 reduction; proton capture; single-atom catalysts
资金
- National Natural Science Foundation of China [21922811, 21878270, 21961160742]
- Fundamental Research Funds for the Central Universities [2020XZZX002-09, CCNU20ZT003]
- Zhejiang Provincial Natural Science Foundation of China [LR19B060002]
- Startup Foundation for Hundred-Talent Program of Zhejiang University
- Leading Innovative and Entrepreneur Team Introduction Program of Zhejiang [2019R01006]
- ARC [DP 190103881, FL 190100126]
Electrocatalysts play a crucial role in accelerating the slow electrochemical CO2 reduction process, and a proton capture strategy has been developed to enhance proton transfer and boost the overall ECR process. This strategy, demonstrated using transition-metal nanoparticles and single nickel active sites, is universal for designing high-performance catalysts for various electrochemical reactions.
Electrocatalysts play a key role in accelerating the sluggish electrochemical CO2 reduction (ECR) involving multi-electron and proton transfer. We now develop a proton capture strategy by accelerating the water dissociation reaction catalyzed by transition-metal nanoparticles (NPs) adjacent to atomically dispersed and nitrogen-coordinated single nickel (Ni-N-x) active sites to accelerate proton transfer to the latter for boosting the intermediate protonation step, and thus the whole ECR process. Aberration-corrected scanning transmission electron microscopy, X-ray absorption spectroscopy, and calculations reveal that the Ni NPs accelerate the adsorbed H (H-ad) generation and transfer to the adjacent Ni-N-x sites for boosting the intermediate protonation and the overall ECR processes. This proton capture strategy is universal to design and prepare for various high-performance catalysts for diverse electrochemical reactions even beyond ECR.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据