RCEES OpenIR  > 中国科学院饮用水科学与技术重点实验室
Dechlorination of Trichloroacetic Acid Using a Noble Metal-Free Graphene-Cu Foam Electrode via Direct Cathodic Reduction and Atomic H
Mao, Ran; Li, Ning; Lan, Huachun; Zhao, Xu; Liu, Huijuan; Qu, Jiuhui; Sun, Meng
2016-04-05
Source PublicationENVIRONMENTAL SCIENCE & TECHNOLOGY
Volume50Issue:7Pages:3829-3837
AbstractA three-dimensional graphene-copper (3D GR-Cu) foam electrode prepared by chemical vapor deposition method exhibited superior electrocatalytic activity toward the dechlorination of trichloroacetic acid (TCAA) as compared to the Cu foam electrode. The cyclic voltammetry and electrochemical impedance spectra analysis confirmed that GR accelerated the electron transfer from the cathode surface to TCAA. With the applied cathode potential of -1.2 V (vs SCE), 95.3% of TCAA (500 mu g/L) was removed within 20 min at pH 6.8. TCAA dechlorination at the Cu foam electrode was enhanced at acidic pH, while a slight pH effect was observed at the GR-Cu foam electrode with a significant inhibition for Cu leaching. The electrocatalytic dechlorination of TCAA was accomplished via a combined stepwise and concerted pathway on both electrodes, whereas the concerted pathway was efficiently promoted on the GR-Cu foam electrode. The direct reduction by electrons was responsible for TCAA dechlorination at Cu foam electrode, while at GR-Cu foam electrode, the surface-adsorbed atomic H* also contributed to TCAA dechlorination owing to the chemical storage of hydrogen in the GR structure. Finally, the potential applicability of GR-Cu foam was revealed by its stability in the electrocatalytic dechlorination over 25 cycles.
Department中国科学院饮用水科学与技术重点实验室
DOI10.1021/acs.est.5b05006
Indexed BySCI
Citation statistics
Cited Times:61[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.rcees.ac.cn/handle/311016/36166
Collection中国科学院饮用水科学与技术重点实验室
Recommended Citation
GB/T 7714
Mao, Ran,Li, Ning,Lan, Huachun,et al. Dechlorination of Trichloroacetic Acid Using a Noble Metal-Free Graphene-Cu Foam Electrode via Direct Cathodic Reduction and Atomic H[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2016,50(7):3829-3837.
APA Mao, Ran.,Li, Ning.,Lan, Huachun.,Zhao, Xu.,Liu, Huijuan.,...&Sun, Meng.(2016).Dechlorination of Trichloroacetic Acid Using a Noble Metal-Free Graphene-Cu Foam Electrode via Direct Cathodic Reduction and Atomic H.ENVIRONMENTAL SCIENCE & TECHNOLOGY,50(7),3829-3837.
MLA Mao, Ran,et al."Dechlorination of Trichloroacetic Acid Using a Noble Metal-Free Graphene-Cu Foam Electrode via Direct Cathodic Reduction and Atomic H".ENVIRONMENTAL SCIENCE & TECHNOLOGY 50.7(2016):3829-3837.
Files in This Item: Download All
File Name/Size DocType Version Access License
Dechlorination of Tr(2995KB) 开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Mao, Ran]'s Articles
[Li, Ning]'s Articles
[Lan, Huachun]'s Articles
Baidu academic
Similar articles in Baidu academic
[Mao, Ran]'s Articles
[Li, Ning]'s Articles
[Lan, Huachun]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Mao, Ran]'s Articles
[Li, Ning]'s Articles
[Lan, Huachun]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Dechlorination of Trichloroacetic Acid Using a Noble Metal-Free Graphene-Cu Foam Electrode via Direct Cathodic Reduction and Atomic H.pdf
Format: Adobe PDF
This file does not support browsing at this time
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.