globalchange  > 气候减缓与适应
DOI: 10.1016/j.jcou.2018.05.027
Scopus记录号: 2-s2.0-85048077860
论文题名:
Enhanced electroreduction of CO2 and simultaneous degradation of organic pollutants using a Sn-based carbon nanotubes/carbon black hybrid gas diffusion cathode
作者: Wang Q.; Wang X.; Wu C.; Cheng Y.; Sun Q.; Yu H.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2018
卷: 26
起始页码: 425
结束页码: 433
语种: 英语
英文关键词: Carbon dioxide ; Electrochemical system ; Electroreduction ; Formic acid ; Gas diffusion electrode
Scopus关键词: Azo dyes ; Carbon dioxide ; Carbon nanotubes ; Cathodes ; Charge transfer ; Diffusion in gases ; Efficiency ; Electrochemical electrodes ; Electrolytic reduction ; Formic acid ; Tin compounds ; Yarn ; Charge transfer resistance ; Electro reduction ; Electroactive surface areas ; Electrochemical systems ; Electroreduction of CO2 ; Gas diffusion electrodes ; Large-scale applications ; Simultaneous degradation ; Organic pollutants
英文摘要: Coupled electrochemical system (CES) for electroreduction of CO2 and simultaneous degradation of organic pollutants is a promising CO2 conversion method. However, its performance is severely restrained by insufficient reactants and low electroactive surface areas on the cathode material. Here, a series of novel Sn-based carbon nanotubes (CNTs)/carbon black hybrid gas diffusion electrodes (CNTx/ESGDEs) were fabricated and used as cathodes to enhance the performance of the CES with methyl orange (MO) as a target pollutant. The results show that at an appropriate content of CNTs, the CNTx/ESGDEs offered increased total pore area, porosity, electroactive surface area, and decreased charge transfer resistances. The current density, Faraday efficiency, formic acid production rate, MO removal efficiency, and COD removal efficiency were improved by 140%, 92%, 404%, 76%, and 131%, respectively, at 40 wt% CNTs probably due to enhancement in the electroactive surface area as well as reactant transfer. This study benefits the large-scale applications of CES. © 2018 Elsevier Ltd. All rights reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/111875
Appears in Collections:气候减缓与适应

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作者单位: College of Resources and Environmental Engineering, Anhui University, Hefei, Anhui, 230601, China; Mining Environmental Restoration and Wetland Ecological Security Collaborative Innovation Center, Hefei, Anhui, 230601, China; School of Life Sciences, Anhui University, Hefei, Anhui, 230601, China; College of Environmental Science and Engineering, Nankai University, Tianjin, 300071, China

Recommended Citation:
Wang Q.,Wang X.,Wu C.,et al. Enhanced electroreduction of CO2 and simultaneous degradation of organic pollutants using a Sn-based carbon nanotubes/carbon black hybrid gas diffusion cathode[J]. Journal of CO2 Utilization,2018-01-01,26
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