气候变化领域集成服务门户(CCPortal): Energy efficient electrochemical reduction of CO 2 to CO using a three-dimensional porphyrin/graphene hydrogel

CCPortal

DOI	10.1039/c8ee03403f
	Energy efficient electrochemical reduction of CO 2 to CO using a three-dimensional porphyrin/graphene hydrogel
	Choi J.; Kim J.; Wagner P.; Gambhir S.; Jalili R.; Byun S.; Sayyar S.; Lee Y.M.; MacFarlane D.R.; Wallace G.G.; Officer D.L.
发表日期	2019
ISSN	17545692
起始页码	747
结束页码	755
卷号	12 期号:2
英文摘要	Although electrochemical CO 2 reduction is one of the most promising ways to convert atmospheric CO 2 into value-added chemicals, there are still numerous limitations to overcome to achieve highly efficient CO 2 conversion performance. Herein, we report for the first time the development and use of a three-dimensional iron porphyrin-based graphene hydrogel (FePGH) as an electrocatalyst for extremely efficient robust CO 2 reduction to CO. Electrocatalytic CO 2 conversion was performed in aqueous medium with FePGH, which has a highly porous and conductive 3D graphene structure, resulting in high catalytic activity for CO production with ∼96.2% faradaic efficiency at a very low overpotential of 280 mV. Furthermore, FePGH showed considerable catalytic durability maintaining a consistent CO yield (96.4% FE) over 20 h electrolysis at the same overpotential, corresponding to the highest cathodic energy efficiency yet observed of 79.7% compared to other state-of-the-art immobilised metal complex electrocatalysts. This approach to fabricating a 3D graphene-based hydrogel electrocatalyst should provide an exciting new avenue for the development of other kinds of molecular electrocatalysts. © 2019 The Royal Society of Chemistry.
英文关键词	Carbon dioxide; Catalyst activity; Electrocatalysts; Electrolytic reduction; Graphene; Hydrogels; Iron compounds; Metal complexes; Porphyrins; Electrocatalytic; Electrochemical reductions; Energy efficient; Faradaic efficiencies; Graphene hydrogels; Iron porphyrin; State of the art; Value-added chemicals; Energy efficiency; carbon dioxide; carbon monoxide; catalysis; catalyst; chemical compound; electrochemical method; electrode; electrokinesis; energy efficiency; performance assessment; reduction; three-dimensional modeling
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/189990
作者单位	ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, Australian Institute for Innovative Materials, University of Wollongong, Wollongong, NSW 2522, Australia; School of Chemical Engineering, Australian Institute for Bioengineering and Nanotechnology (AIBN), University of Queensland, Brisbane, QLD 4072, Australia; School of Chemical Engineering, University of New South Wales, Sydney, NSW 2031, Australia; Department of Energy Science and Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), 333 Techno Jungang-daero Hyeonpung-myeon Dalseong-gun, Daegu, 42988, South Korea; ARC Centre of Excellence for Electromaterials Science, Monash University, Clayton, VIC 3800, Australia
推荐引用方式 GB/T 7714	Choi J.,Kim J.,Wagner P.,et al. Energy efficient electrochemical reduction of CO 2 to CO using a three-dimensional porphyrin/graphene hydrogel[J],2019,12(2).
APA	Choi J..,Kim J..,Wagner P..,Gambhir S..,Jalili R..,...&Officer D.L..(2019).Energy efficient electrochemical reduction of CO 2 to CO using a three-dimensional porphyrin/graphene hydrogel.Energy & Environmental Science,12(2).
MLA	Choi J.,et al."Energy efficient electrochemical reduction of CO 2 to CO using a three-dimensional porphyrin/graphene hydrogel".Energy & Environmental Science 12.2(2019).