Premium
Enhancing CO 2 Electrocatalysis on 2D Porphyrin‐Based Metal–Organic Framework Nanosheets Coupled with Visible‐Light
Author(s) -
Zhou Yue,
Zheng Lirong,
Yang Deren,
Yang Haozhou,
Lu Qichen,
Zhang Qinghua,
Gu Lin,
Wang Xun
Publication year - 2021
Publication title -
small methods
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 4.66
H-Index - 46
ISSN - 2366-9608
DOI - 10.1002/smtd.202000991
Subject(s) - nanosheet , porphyrin , materials science , electrocatalyst , faraday efficiency , electron transfer , metal organic framework , mesoporous material , catalysis , visible spectrum , photochemistry , monolayer , selectivity , metal , electrode , nanotechnology , electrochemistry , chemistry , optoelectronics , biochemistry , adsorption , metallurgy
2D catalysts combined with single atom sites are promising candidates to promote CO 2 reduction performance, but the ability to target stable materials with distinct structure still remains challenging. Herein, a series of single metal atoms anchored 2D metal–organic framework nanosheets (MOF‐NS‐M) with visualized and well‐ordered mesoporous structures are fabricated and exhibit enhanced CO 2 reduction activity and selectivity with the assistance of visible‐light. Encouragingly, the CO Faradaic efficiency of MOF‐NS‐Co exceeds 90% in a wide potential window of −0.5 to −1.0 V versus RHE and reaches 98.7% with 100 mV positive shift compared with the result measured under dark. The catalytic kinetics studies show a fast initial electron transfer to CO 2 to form *COO − , thanks to the sufficient exposed active sites resulting from the nanosheet nature and adjusted electron transfer pathway caused by the porphyrin photoswitch.