文献类型：期刊文献

英文题名：Tuning the Metal Electronic Structure of Anchored Cobalt Phthalocyanine via Dual-Regulator for Efficient CO2 Electroreduction and Zn-CO2 Batteries

作者：Gong, Shanhe[1,2];Wang, Wenbo[2];Zhang, Chaonan[3];Zhu, Minghui[4];Lu, Runqing[2];Ye, Jinjin[3];Yang, Huan[3];Wu, Chundu[1];Liu, Jun[1];Rao, Dewei[3];Shao, Shouyan[2];Lv, Xiaomeng[2]

机构：[1]Jiangsu Univ, Sch Environm & Safety Engn, Zhenjiang 212013, Jiangsu, Peoples R China;[2]Jiangsu Univ, Sch Chem & Chem Engn, Zhenjiang 212013, Jiangsu, Peoples R China;[3]Jiangsu Univ, Sch Mat Sci & Engn, Zhenjiang 212013, Jiangsu, Peoples R China;[4]East China Univ Sci & Technol, Sch Chem Engn, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2022

卷号：32

期号：17

外文期刊名：ADVANCED FUNCTIONAL MATERIALS

收录：;EI(收录号：20220311471087);WOS:【SCI-EXPANDED(收录号:WOS:000742690600001)】；

基金：The authors thank the following funding agencies for supporting this work: The National Natural Science Foundation of China (51801075), the Zhenjiang Key Research and Development Program (GY2021004), the Opening Project of Henan Key Laboratory of Water Pollution Control and Rehabilitation Technology (CJSP2021006), and Postgraduate Research & Practice Innovation Program of Jiangsu Province (KYCX 21_3392).

语种：英文

外文关键词：carbon defects; carbon monoxide; electrocatalytic CO; (2) reduction; heterogeneous molecular catalysts; Zn-CO; (2) battery

摘要：Heterogeneous macromolecule catalysts have been known as efficient electrocatalysts for CO2 reduction reaction, however, manipulating the activity of heterogeneous molecules via controllable metal electronic structure is still challenging. Herein, different CO2 activated 3D, robust, nitrogen-doped hollow carbon spheres are synthesized to anchor cobalt phthalocyanine as molecularly dispersed electrocatalysts, where the electron-withdrawing coeffect of carbon defects and heteroatom N is responsible for tuning the electronic structure of metal center. The optimal electrocatalyst reveals high CO faradaic efficiency (FECO) of 95.68%, turnover frequency of 13.80 s(-1), and current density of 16.49 mA cm(-2) at an overpotential of 760 mV. The control experiment and DFT calculations unveil that the significant activity is mainly ascribed to the optimal electron-withdrawing coeffect of carbon defects and pyrrolic N, which reduce the electron density of Co center to facilitate CO2 activated to form *COOH intermediate on Co(I) active sites during electrocatalysis. The 2p-charge loss of Co is summarized as an activity descriptor, which steers the current density and production rate toward CO. Furthermore, the design strategy can universally fabricate the hybrid MPc catalyst with transitional metal (Ni, Fe) site while a rechargeable Zn-CO2 battery is devised to deliver a maximal power density of 1.02 mW cm(-2).