@article{Qu2023, 
author = {Ming Qu and Zhe Chen and Zhiyi Sun and Danni Zhou and Wenjing Xu and Hao Tang and Hongfei Gu and Tuo Liang and Pengfei Hu and Guangwen Li and Yu Wang and Zhuo Chen and Tao Wang and Binbin Jia},
title = {Rational design of asymmetric atomic Ni-P1N3 active sites for promoting electrochemical CO2 reduction},
year = {2023},
journal = {Nano Research},
volume = {16},
number = {2},
pages = {2170-2176},
keywords = {CO2 reduction reaction, asymmetric coordination, nickel single-site catalysts, atomic interface},
url = {https://www.sciopen.com/article/10.1007/s12274-022-4969-z},
doi = {10.1007/s12274-022-4969-z},
abstract = {The atomic-level interfacial regulation of single metal sites through heteroatom doping can significantly improve the characteristics of the catalyst and obtain surprising activity. Herein, nickel single-site catalysts (SSCs) with dual-coordinated phosphorus and nitrogen atoms were developed and confirmed (denoted as Ni-PxNy, x = 1, 2 and y = 3, 2). In CO2 reduction reaction (CO2RR), the CO current density on Ni-PxNy was significantly higher than that of Ni-N4 catalyst without phosphorus modification. Besides, Ni-P1N3 performed the highest CO Faradaic efficiency (FECO) of 85.0%–98.0% over a wide potential range of −0.65 to −0.95 V (vs. the reversible hydrogen electrode (RHE)). Experimental and theoretical results revealed that the asymmetric Ni-P1N3 site was beneficial to CO2 intermediate adsorption/desorption, thereby accelerating the reaction kinetics and boosting CO2RR activity. This work provides an effective method for preparing well-defined dual-coordinated SSCs to improve catalytic performance, targetting to CO2RR applications.}
}