globalchange  > 影响、适应和脆弱性
DOI: 10.1016/j.jcou.2017.01.021
Scopus记录号: 2-s2.0-85012173173
论文题名:
Sn nanoparticles on gas diffusion electrodes: Synthesis, characterization and use for continuous CO2 electroreduction to formate
作者: Del Castillo A.; Alvarez-Guerra M.; Solla-Gullón J.; Sáez A.; Montiel V.; Irabien A.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2017
卷: 18
语种: 英语
英文关键词: Carbon dioxide ; Electroreduction ; Formate ; Gas diffusion electrodes ; Tin nanoparticles
Scopus关键词: Current density ; Cyclic voltammetry ; Diffusion ; Diffusion in gases ; Electrodes ; Electrolytic reduction ; Electron emission ; Electron microscopy ; High resolution transmission electron microscopy ; Nanoparticles ; Reduction ; Scanning electron microscopy ; Solar energy ; Solutions ; Synthesis (chemical) ; Tin ; Tin dioxide ; Transmission electron microscopy ; Electro reduction ; Electrocatalytic properties ; Electrochemical reductions ; Faradaic efficiencies ; Formate ; Gas diffusion electrodes ; High current densities ; TiN nanoparticles ; Carbon dioxide
英文摘要: Graphical abstract: Electrochemical reduction of CO2 has been pointed out as an interesting strategy to convert CO2 into useful chemicals. In addition, coupling CO2 electroreduction with renewable energies would allow storing electricity from intermittent renewable sources such as wind or solar power. In this work, an easy and fast method is adapted for the synthesis of pure and carbon supported Sn nanoparticles. The resulting nanoparticles have been characterized by transmission electron microscopy and their electrocatalytic properties towards CO2 reduction evaluated by cyclic voltammetry. Carbon supported Sn nanoparticles have been subsequently used to prepare Gas Diffusion Electrodes (Sn/C-GDEs). The electrodes have been characterized by scanning electron microscopy and also by cyclic voltammetry. Finally, the electrodes were tested on a continuous and single pass CO2 electroreduction filter-press type cell system in aqueous solution, to obtain formate at ambient pressure and temperature. These Sn/C-GDEs allow working at high current densities with low catholyte flow. Thus, for instance, at 150mAcm−2, a 70% Faradaic Efficiency (FE) was obtained with a formate concentration of 2.5gL−1. Interestingly, by increasing the current density to 200mAcm−2 and decreasing the flow rate, a concentration over 16gL−1 was reached. Despite the high concentrations obtained, further research is still required to keep high FE operating at high current densities. © 2017 Elsevier Ltd.
资助项目: Universidad de Cantabria
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52767
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Recommended Citation:
Del Castillo A.,Alvarez-Guerra M.,Solla-Gullón J.,et al. Sn nanoparticles on gas diffusion electrodes: Synthesis, characterization and use for continuous CO2 electroreduction to formate[J]. Journal of CO2 Utilization,2017-01-01,18
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