Atomically precise Ni clusters inducing active NiN2 sites with uniform-large vacancies towards efficient CO2-to-CO conversion

G Guangyuan Xu X Xingjie Peng (School of Physical Sciences) C Chuanqiang Wu (Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology) S Shibo Xi H Huixin Xiang L Lei Feng Z Zhendong Liu (School of Light Industry and Engineering, State Key Laboratory of Advanced Papermaking & Paper-based Materials) Y Yi Duan L Lijin Gan S Si Chen Y Yuan Kong (Hefei National Research Center for Physical Sciences at the Microscale and Department of Chemical Physics) Y Yanzhe Ma F Fujing Nie J Jie Zhao X Xiao Hai (Department of Chemistry) W Wei Wei M Meng Zhou T Tianfu Wang (School of Environmental Science and Engineering) C Chuanhao Yao W Wu Zhou H Huan Yan