DOI: 10.1016/j.jcou.2017.01.010
Scopus记录号: 2-s2.0-85010206004
论文题名: Noble metal-free catalysts supported on carbon for CO2 electrochemical reduction
作者: Pérez-Rodríguez S. ; Pastor E. ; Lázaro M.J.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2017
卷: 18 起始页码: 41
结束页码: 52
语种: 英语
英文关键词: Carbon-supported catalysts
; CO2 electrochemical reduction
; H2 evolution reaction
; Noble metal-free catalysts
Scopus关键词: Carbon black
; Carbon dioxide
; Catalysts
; Copper oxides
; Electrocatalysts
; Electrolytic reduction
; Metals
; Precious metals
; Reduction
; Amorphous oxides
; Aqueous electrolyte
; Carbon supported catalyst
; Competitive reactions
; Electrochemical reductions
; Evolution reactions
; Hydrogen evolution
; Metal-free catalysts
; Catalyst supports
英文摘要: In the present work, a wide variety of electrocatalysts, involving different metals, synthesis routes and oxidation states, have been prepared and the response towards the CO2 reduction on carbon-supported established. In particular, catalysts based on non-noble metals (Cu, Co, Fe and Ni) supported on carbon black (Vulcan XC-72R) were tested in the electrochemical reduction of CO2. Amorphous oxides of magnetite/maghemite and crystalline CuO and Cu2O oxides obtained by different methodologies were also studied. Previously, the efficiency of the catalysts for the hydrogen formation was evaluated in 0.1 M NaHCO3 since it takes place as a competitive reaction during CO2 reduction in aqueous electrolytes. By comparison of the voltammograms in the absence and presence of CO2, an inhibition of the hydrogen evolution was showed for all (metal and oxide-based) catalysts due to the adsorption of species from CO2 reduction (CO2,red). Interestingly, the CO2,red formation on Co and Fe-surfaces operating under these conditions has not been stated before. A strong current decrease, and consequently, a higher adsorbate amount, was observed on copper-oxides (75-85%) vs. the metal catalyst (45%). © 2017 Published by Elsevier Ltd. 资助项目: Direction Générale de l'Armement
; Ministerio de Economía y Competitividad
; Ministerio de Economía y Competitividad
; College of Science, Technology, Engineering, and Mathematics, Youngstown State University
; Työ- ja Elinkeinoministeriö
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52793
Appears in Collections: 影响、适应和脆弱性
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Recommended Citation:
Pérez-Rodríguez S.,Pastor E.,Lázaro M.J.. Noble metal-free catalysts supported on carbon for CO2 electrochemical reduction[J]. Journal of CO2 Utilization,2017-01-01,18