Implanting Built-In Electric Field in Heterometallic Phthalocyanine Covalent Organic Frameworks for Light-Assisted CO <sub>2</sub> Electroreduction
Xi Tian, Xin Huang, Jingwen Shi, Jie Zhou, Can Guo, Rui Wang, Yirong Wang, Meng Lu, Qi Li, Yifa Chen, Shun‐Li Li, Ya‐Qian Lan
Abstract
Open AccessCCS ChemistryRESEARCH ARTICLES29 Dec 2022Implanting Built-in Electric Field in Hetero-metallic Phthalocyanine Covalent Organic Frameworks for Light-assisted CO2 Electroreduction Xi Tian, Xin Huang, Jing-Wen Shi, Jie Zhou, Can Guo, Rui Wang, Yi-Rong Wang, Meng Lu, Qi Li, Yifa Chen, Shun-Li Li and Ya-Qian Lan Xi Tian , Xin Huang , Jing-Wen Shi , Jie Zhou , Can Guo , Rui Wang , Yi-Rong Wang , Meng Lu , Qi Li , Yifa Chen , Shun-Li Li and Ya-Qian Lan https://doi.org/10.31635/ccschem.022.202202519 SectionsAboutPDF ToolsAdd to favoritesDownload CitationsTrack Citations ShareFacebookTwitterLinked InEmail Strategy that enables introducing bimetallic active sites is desired for the exploration of light-sensitive covalent-organic-frameworks (COFs) based electrocatalysts in light-assisted CO2-electroreduction. Herein, salphen-pockets have been implanted into phthalocyanine-based COFs through the elaborate design of structure-struts and thus-produced NiPc-DFP-M COF (M = Ni and Co) possess the advantages of controllably bimetallic centers with different coordination-environments, outstanding light-sensitivity, and built-in electric-field effect that can be successfully applied in light-assisted CO2 electroreduction. Notably, the optimally hetero-metallic NiPc-DFP-Co COF presents a high FECO (~100%) in a wide potential-range of -0.7 V to -1.1 V and ~70% energy-efficiency (-0.7 V) under light-irradiation, which is superior to mono-/homo-metallic COFs and under dark conditions. The high performance can be ascribed to the synergistic effect of NiPc and Co-salphen pockets that can largely reduce the rate-determining energy-barrier and enhance the electron-density to boost the light-assisted activity as supported by DFT-calculations. Download figure Download PowerPoint Previous articleNext article FiguresReferencesRelatedDetails Issue AssignmentVolume 0Issue jaPage: 1-11 Copyright & Permissions© 2022 Chinese Chemical Society Downloaded 0 times PDF downloadLoading ...