Proton/Electron Donors Enhancing Electrocatalytic Activity of Supported Conjugated Microporous Polymers for CO2Reduction
Authors:
- 1 December 2021
- journal article
- research article
- Published by Wiley in Angewandte Chemie International Edition
- Vol. 61 (5) , e202115503
Abstract
Metal phthalocyanines (MePc) hold great promise in electrochemical reduction of CO2to value‐added chemicals, whereas the catalytic activity of MePc‐containing polymers often suffers from a limited molecular modulation strategy. Herein, we synthesize an ultrathin conjugated microporous polymer sheath around carbon nanotubes by an ionothermal copolymerization of CoPc and H2Pc via the Scholl reaction. Given the H2Pc‐mediated regulation in the synthesis, CoIImetal is well preserved in the form of single atoms on the polymer sheath of the carbon nanotubes. With the synergistic effect of H2Pc moieties as proton/electron donors, the composites can selectively reduce CO2to CO with a high Faradaic efficiency (max. 97 % at −0.9 V) in broad potential windows, exceptional turnover frequency (97 592 h−1at −0.65 V) and large current density (>200 mA cm−2). It is thus desirable to develop a family of heterogeneous polymerized MePc with molecularly regulating electrocatalytic activity.Keywords
Funding Information
- National Natural Science Foundation of China (51973039, 21774023, 21922811, 21878270, 21961160742)
- Science and Technology Commission of Shanghai Municipality (18520744800)
- Natural Science Foundation of Zhejiang Province (LR19B060002)
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