Home > Articles > Published articles > Improvement of carbon dioxide electroreduction by crystal surface modification of ZIF-8 |
Date: | 2023 |
Abstract: | Metal-organic frameworks (MOFs) possess high CO adsorption properties and are considered to be a promising candidate for the electrochemical carbon dioxide reduction reaction (eCORR). However, their insufficient selectivity and current density constrain their further exploration in the eCORR. In this work, by introducing a very small proportion of 2,5-dihydroxyterephthalic acid (DOBDC) into ZIF-8, a surface modified ZIF-8-5% catalyst was synthesized by a post-modification method, exhibiting enhanced selectivity (from 56% to 79%) and current density (from −4 mA cm to −10 mA m) compared to ZIF-8. Density functional theory (DFT) calculations further demonstrate that the boosted eCORR performance on ZIF-8-5% could be attributed to the improved formation of the *COOH intermediate stemming from successful DOBDC surface modification. This work opens a new path for improving the catalytic properties of MOFs via their surface modification. |
Grants: | Ministerio de Ciencia e Innovación CEX2021-001214-S Agència de Gestió d'Ajuts Universitaris i de Recerca 2021/SGR-00457 Agència de Gestió d'Ajuts Universitaris i de Recerca 2021/SGR-01581 Agencia Estatal de Investigación PID2020-116093RB-C42 Agencia Estatal de Investigación PID2020-116093RB-C43 |
Rights: | Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. |
Language: | Anglès |
Document: | Article ; recerca ; Versió publicada |
Subject: | Adsorption properties ; Carbon dioxide reduction ; Crystal surfaces ; Electro reduction ; Electrochemicals ; Metalorganic frameworks (MOFs) ; Reduction reaction ; Surface-modification ; Surface-modified ; ]+ catalyst |
Published in: | Dalton transactions, Vol. 52, Issue 16 (April 2023) , p. 5234-5242, ISSN 1477-9234 |
9 p, 1.5 MB |