DOI: 10.1016/j.jcou.2016.09.002
Scopus记录号: 2-s2.0-84988698639
论文题名: Electrocatalytic reduction of carbon dioxide on SnO2/MWCNT in aqueous electrolyte solution
作者: Bashir S. ; Hossain Sk.S. ; Rahman S.U. ; Ahmed S. ; Al-Ahmed A. ; Hossain M.M.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2016
卷: 16 起始页码: 346
结束页码: 353
语种: 英语
英文关键词: CO2
; Current density
; Electrocatalyst
; Electrochemical reduction
; Faradaic efficiency
; Multi-walled carbon nanotubes
Scopus关键词: Benchmarking
; Carbon nanotubes
; Catalyst activity
; Catalysts
; Chronoamperometry
; Current density
; Efficiency
; Electrocatalysts
; Electrodes
; Electrolytes
; Electrolytic reduction
; Metal drawing
; Metal working
; Multiwalled carbon nanotubes (MWCN)
; Nanotubes
; Reduction
; Yarn
; Aqueous electrolyte solutions
; Electrocatalytic reduction
; Electrochemical reductions
; Electrochemical techniques
; Faradaic efficiencies
; Key performance indicators
; Room-temperature conditions
; Saturated calomel electrode
; Carbon dioxide
英文摘要: This communication reports the activity of SnO2/MWCNT (multi-walled carbon nanotubes) electrocatalysts for CO2 reduction in an aqueous electrolyte solution using two compartment electrochemical cell. The effect of metal loading of the powdered catalysts (working electrode) on the reduction capabilities of CO2 are studied, under ambient pressure and room temperature conditions. Electrochemical techniques such as linear sweep voltammetry and chronoamperometry are employed to get the current response (current density) for CO2 reduction at different applied potentials. Current densities (C.D.) and the faradaic efficiencies (F.E.) of the products are the key performance indicators for any electrochemical process. The higher current densities and faradaic efficiencies for CO2 reduction are obtained with the optimum SnO2 content (20% by weight) on the high surface area MWCNT support. The 20% SnO2/MWCNT catalyst shows remarkable activity for CO2 conversion to formate with F.E. of c.a. 27.2% at a potential of -1.7V vs. SCE (Saturated Calomel Electrode). The higher activity is attributed to the uniform dispersion and more availability of active sites for CO2 reduction. © 2016 Elsevier Ltd. All rights reserved. 资助项目: King Fahd University of Petroleum and Minerals
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52882
Appears in Collections: 影响、适应和脆弱性