期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 8, 期 30, 页码 14966-14974出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0ta04641h
关键词
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资金
- ARC Centre of Excellence Scheme [CE 140100012]
- University of Wollongong (UOW)
- Materials Node of the Australian National Fabrication Facility (ANFF)
- UOW Electron Microscopy Centre
- National Research Foundation of Korea (NRF) grant - Korean government (MSIP) [2020R1C1C1004459, 2017M3A7B4041987, 2016R1A5A1012966]
- Foundation for Australia-Japan Studies (FAJS)
- National Research Foundation of Korea [2020R1C1C1004459] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
A variety of carbon materials such as carbon nanotubes and graphene have been widely investigated as conductive substrates to immobilize metal complex-based catalysts for electrocatalytic CO(2)reduction. However, highly ordered mesoporous carbons have received scant attention as substrates for CO(2)reduction electrocatalysts. The unique porous structure of such carbon provides the opportunity to not only house catalytically active materials but also facilitate reactant transport. In this work, we propose a simple approach for immobilization of the highly active and cost-efficient molecular catalyst iron porphyrin, into a highly ordered mesoporous carbon, CMK-3 having a large surface area of 1345 m(2)g(-1)viaa simple vacuum infiltration method. The resulting heterogeneous electrocatalyst (CMK-FeTPP) is utilized for the conversion of aqueous CO(2)into CO with 92.1% faradaic efficiency and a high effective turnover frequency of 3.9 s(-1)at an overpotential of 680 mV. We believe that this new approach has the potential to be widely used to fabricate efficient electrocatalysts for not only CO(2)conversion but also other electrochemical gas conversion systems.
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