A Comparison Between 2D and 3D Cobalt-organic Framework As Catalysts for Electrochemical CO Reduction
Overview
Overview
Authors
Affiliations
Affiliations
Soon will be listed here.
Abstract
Electrocatalytic CO reduction, as an effective way to reduce the CO concentration, has gained attention. In this study, we prepared ZIF-67 nanoparticles and nanosheets and investigated them as electrocatalysts for CO reduction. It was found that ZIF-67 nanosheets, because of their two-dimensional morphologies, provide more under-coordinated cobalt nodes and have lower overpotentials for both hydrogen evolution and CO reduction reactions. Also, the rate-determining step for hydrogen evolution changes from Volmer for ZIF-67 nanoparticles to Hyrovsky for ZIF-67 nanosheets. Also, the presence of Mg ions in solution causes more facile CO reduction, especially for ZIF-67 nanosheets.
References
1.
Cao Z, Kim D, Hong D, Yu Y, Xu J, Lin S
. A Molecular Surface Functionalization Approach to Tuning Nanoparticle Electrocatalysts for Carbon Dioxide Reduction. J Am Chem Soc. 2016; 138(26):8120-5.
DOI: 10.1021/jacs.6b02878.
View
2.
Wang J, Li N, Xu Y, Pang H
. Two-Dimensional MOF and COF Nanosheets: Synthesis and Applications in Electrochemistry. Chemistry. 2020; 26(29):6402-6422.
DOI: 10.1002/chem.202000294.
View
3.
Fan L, Kang Z, Li M, Sun D
. Recent progress in pristine MOF-based catalysts for electrochemical hydrogen evolution, oxygen evolution and oxygen reduction. Dalton Trans. 2021; 50(17):5732-5753.
DOI: 10.1039/d1dt00302j.
View
4.
Yang Q, Xu Q, Jiang H
. Metal-organic frameworks meet metal nanoparticles: synergistic effect for enhanced catalysis. Chem Soc Rev. 2017; 46(15):4774-4808.
DOI: 10.1039/c6cs00724d.
View
5.
Loipersberger M, Zee D, Panetier J, Chang C, Long J, Head-Gordon M
. Computational Study of an Iron(II) Polypyridine Electrocatalyst for CO Reduction: Key Roles for Intramolecular Interactions in CO Binding and Proton Transfer. Inorg Chem. 2020; 59(12):8146-8160.
DOI: 10.1021/acs.inorgchem.0c00454.
View