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The Origin of the Electrocatalytic Activity for CO 2 Reduction Associated with Metal‐Organic Frameworks
Author(s) -
Zhang Ying,
Zhang Xiaolong,
Zhu Yinlong,
Qian Binbin,
Bond Alan M.,
Zhang Jie
Publication year - 2020
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.202000639
Subject(s) - metal organic framework , stripping (fiber) , anode , electrolyte , nanotechnology , metal , materials science , reduction (mathematics) , chemistry , chemical engineering , combinatorial chemistry , electrode , organic chemistry , adsorption , engineering , composite material , geometry , mathematics
There has been a rapid growth in the use of metal–organic framework (MOF) materials as electrocatalysts. However, simple anodic stripping analysis reveals that some well‐known previously reported stable MOFs are in fact unstable at the negative potentials used to catalytically reduce CO 2 in aqueous electrolyte media. Thus, it is the resulting metal nanoparticles derived from reduction of the MOFs rather than the MOFs themselves that are the electrocatalysts. The results reported herein therefore suggest that stability data and the origin of the activity for MOF electrocatalysts may need careful re‐evaluation and that suitable strategies are needed to ensure that stable MOF electrocatalysts have been synthesized. The use of the readily accessible stripping analysis method provides a powerful tool to assess MOF stability under turnover conditions.