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Conductive Two‐Dimensional Phthalocyanine‐based Metal–Organic Framework Nanosheets for Efficient Electroreduction of CO 2
Author(s) -
Yi JunDong,
Si DuanHui,
Xie Ruikuan,
Yin Qi,
Zhang MengDi,
Wu Qiao,
Chai GuoLiang,
Huang YuanBiao,
Cao Rong
Publication year - 2021
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.202104564
Subject(s) - phthalocyanine , electrocatalyst , metal organic framework , materials science , catalysis , conductivity , non blocking i/o , current density , electrical conductor , selectivity , metal , inorganic chemistry , chemical engineering , nanotechnology , chemistry , electrode , electrochemistry , organic chemistry , metallurgy , composite material , physics , adsorption , quantum mechanics , engineering
The electrocatalytic conversion of CO 2 into value‐added chemicals is a promising approach to realize a carbon‐energy balance. However, low current density still limits the application of the CO 2 electroreduction reaction (CO 2 RR). Metal–organic frameworks (MOFs) are one class of promising alternatives for the CO 2 RR due to their periodically arranged isolated metal active sites. However, the poor conductivity of traditional MOFs usually results in a low current density in CO 2 RR. We have prepared conductive two‐dimensional (2D) phthalocyanine‐based MOF (NiPc‐NiO 4 ) nanosheets linked by nickel‐catecholate, which can be employed as highly efficient electrocatalysts for the CO 2 RR to CO. The obtained NiPc‐NiO 4 has a good conductivity and exhibited a very high selectivity of 98.4 % toward CO production and a large CO partial current density of 34.5 mA cm −2 , outperforming the reported MOF catalysts. This work highlights the potential of conductive crystalline frameworks in electrocatalysis.