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Controllable synthesized diamond/CNWs film as a novel nanocarbon electrode with wide potential window and enhanced S/B ratio for electrochemical sensing

文献类型：期刊论文

作者Zhou, Meiqi2,3; Zhai, Zhaofeng2; Liu, Lusheng2; Zhang, Chuyan1,2; Yuan, Ziyao2,3; Lu, Zhigang2,3; Chen, Bin2,3; Shi, Dan2,3; Yang, Bing2; Wei, Qiuping4
刊名APPLIED SURFACE SCIENCE
出版日期2021-06-15
卷号551页码:9
ISSN号0169-4332
关键词Thin film Diamond/carbon nanowalls Potential window Signal to background ratio Electrochemical sensing
DOI10.1016/j.apsusc.2021.149418
通讯作者Huang, Nan(nhuang@imr.ac.cn) ; Jiang, Xin(xjiang@imr.ac.cn)
英文摘要Ultra-low background current and wide potential window are simultaneously achieved on the diamond/carbon nanowalls (D/CNWs) films albeit with high sp(2)-C content. The morphology and composition of D/CNWs consisting of diamond nanoplatelets and vertically aligned CNWs are mainly modulated by changing the ratio of methane to hydrogen during deposition. D/CNWs electrodes exhibit controllable electrochemical properties related to various microstructures and sp(2)/sp(3)-C ratios. Impressively, it is unusual that the background of a series of D/CNWs is extremely low at the range of 2.34-3.56 mu F/cm(2). And the potential window remains wide from 2.45 to 2.72 V. The existence of the sp(3)-C, low C-O content and hydrophobic surface of D/CNWs are beneficial to above electrochemical behaviors. Moreover, abundant graphene edges of D/CNWs guarantee good electrochemical activity. Finally, D/CNWs-3% electrode with thinner graphene layers was successfully applied in the simultaneous detection of Cd(II) and Pb(II) as low as 10 mu g L-1 (practical limit of detection). D/CNWs-3% electrode exhibits enhanced signal to background (S/B) ratio compared to graphite and boron-doped diamond electrode. The simultaneous determination also confirms wide linear range of D/CNWs-3% from 10 to 1000 mu g L-1. Hence, D/CNWs electrode with outstanding electrochemical properties is promising for electrochemical sensing.
资助项目STS project of the Fujian Province and Chinese Academy of Sciences[2019T3002] ; Young Talent Program of Shenyang National Laboratory for Materials Science[L2019F39] ; Young Talent Program of Shenyang National Laboratory for Materials Science[L2020F40]
WOS研究方向Chemistry ; Materials Science ; Physics
语种英语
出版者ELSEVIER
WOS记录号WOS:000674654300046
资助机构STS project of the Fujian Province and Chinese Academy of Sciences ; Young Talent Program of Shenyang National Laboratory for Materials Science
源URL[http://ir.imr.ac.cn/handle/321006/159827]  
专题金属研究所_中国科学院金属研究所
通讯作者Huang, Nan; Jiang, Xin
作者单位1.Univ Siegen, Inst Mat Engn, Paul Bonatz Str 9-11, D-57076 Siegen, Germany
2.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Wenhua Rd 72, Shenyang 110016, Peoples R China
3.Univ Sci & Technol China, Sch Mat Sci & Engn, Wenhua Rd 72, Shenyang 110016, Peoples R China
4.Cent South Univ, Sch Mat Sci & Engn, State Key Lab Powder Met, Changsha 410083, Peoples R China
推荐引用方式
GB/T 7714		 Zhou, Meiqi,Zhai, Zhaofeng,Liu, Lusheng,et al. Controllable synthesized diamond/CNWs film as a novel nanocarbon electrode with wide potential window and enhanced S/B ratio for electrochemical sensing[J]. APPLIED SURFACE SCIENCE,2021,551:9.
APA Zhou, Meiqi.,Zhai, Zhaofeng.,Liu, Lusheng.,Zhang, Chuyan.,Yuan, Ziyao.,...&Jiang, Xin.(2021).Controllable synthesized diamond/CNWs film as a novel nanocarbon electrode with wide potential window and enhanced S/B ratio for electrochemical sensing.APPLIED SURFACE SCIENCE,551,9.
MLA Zhou, Meiqi,et al."Controllable synthesized diamond/CNWs film as a novel nanocarbon electrode with wide potential window and enhanced S/B ratio for electrochemical sensing".APPLIED SURFACE SCIENCE 551(2021):9.

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来源：金属研究所

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