Efficient electrochemical CO2 conversion by cobalt-based metal organic frameworks modified by bimetallic gold-silver nanostructures

Basit Öğe Kaydı
dc.authoridBai, Jing/0000-0001-6957-190X
dc.authoridZarrabi, Ali/0000-0003-0391-1769
dc.authoridBeheshti, mohammadali/0000-0003-4884-1127
dc.authoridSimchi, Abdolreza/0000-0002-9111-2977
dc.authorwosidSaeidi, Mohsen/JZD-9896-2024
dc.authorwosidBai, Jing/R-1770-2018
dc.authorwosidZarrabi, Ali/U-2602-2019
dc.contributor.authorBeheshti, Mohammadali
dc.contributor.authorSaeidi, Mohsen
dc.contributor.authorAdel-Rastkhiz, MahsaSadat
dc.contributor.authorShahrestani, Shohreh
dc.contributor.authorZarrabi, Ali
dc.contributor.authorBai, Jing
dc.contributor.authorSimchi, Abdolreza
dc.date.accessioned2024-05-19T14:50:37Z
dc.date.available2024-05-19T14:50:37Z
dc.date.issued2023
dc.departmentİstinye Üniversitesien_US
dc.description.abstractThe ongoing and rapid growth of atmospheric CO2 levels causes a crucial worldwide concern. Herein, an efficient electrocatalyst has been introduced for electrochemical CO2 reduction reaction (CO2RR) to address the stability issue of ZIF-67. The catalyst consists of gold and silver nanostructures electrodeposited on the surface of a cobalt-based metal-organic framework (Au-Ag@ZIF-67). The uniform distribution of the Au-Ag alloy without any agglomeration on ZIF-67 was confirmed through microscopic observations. After 13.3 h of CO2RR, the specific surface area of Au-Ag@ZIF-67 slightly decreased, whereas that of ZIF-67 declined drastically, indicating excellent structural stability of the Au-Ag alloy. Additionally, Au-Ag@ZIF-67/GCE revealed a faradaic efficiency of 53% and 38% for CO and H-2, respectively. The enhanced CO2 absorption coupled with the effect of noble metal catalysts offered a current density of 16.4 mA cm(-2) at -1 V (vs. RHE) with 91% Faradaic efficiency. The results indicate that ZIF-67 enhanced the adsorption capacity of CO2 molecules in comparison with the bare GCE. The combination of ZIF-67 with bimetallic Au-Ag nanostructures offers enhanced CO2 absorption and reduced charge transfer resistance, leading to improved catalytic activity and selectivity toward CO gas. The results suggest that the use of Au-Ag nanostructures provides superior catalytic activity compared to traditional catalysts, making this approach a promising development for CO2 gas elimination in the environment.en_US
dc.description.sponsorshipSharif University of Technology [QA970816]; Iran National Science Foundation [97022596]; National Key Research and Development Program of China [2018YFE0122300]en_US
dc.description.sponsorshipA. S. gratefully acknowledges the financial support of the Sharif University of Technology (Grant No. QA970816) and Iran National Science Foundation (Grant No. 97022596). J. B. thanks the National Key Research and Development Program of China (2018YFE0122300).en_US
dc.identifier.doi10.1039/d3cy00373f
dc.identifier.endpage3654en_US
dc.identifier.issn2044-4753
dc.identifier.issn2044-4761
dc.identifier.issue12en_US
dc.identifier.startpage3645en_US
dc.identifier.urihttps://doi.org10.1039/d3cy00373f
dc.identifier.urihttps://hdl.handle.net/20.500.12713/5760
dc.identifier.volume13en_US
dc.identifier.wosWOS:000996931600001en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.language.isoenen_US
dc.publisherRoyal Soc Chemistryen_US
dc.relation.ispartofCatalysis Science & Technologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.snmz20240519_kaen_US
dc.subjectAssisted Synthesisen_US
dc.subjectAu Nanoparticlesen_US
dc.subjectCarbon-Dioxideen_US
dc.subjectReductionen_US
dc.subjectStabilityen_US
dc.subjectElectroreductionen_US
dc.subjectImmobilizationen_US
dc.subjectCatalystsen_US
dc.subjectZif-67en_US
dc.subjectFilmsen_US
dc.titleEfficient electrochemical CO2 conversion by cobalt-based metal organic frameworks modified by bimetallic gold-silver nanostructuresen_US
dc.typeArticleen_US

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu