Tao, Wenyan; Pan, Dawei
; Gong, Zanhua; Peng, Xia发表期刊ANALYTICA CHIMICA ACTA
ISSN0003-2670
2018-12-04
卷号1035页码:44-50
关键词Nanoporous platinum electrodeNitric oxideAngeli's saltThermal evaporation deposition
研究领域Chemistry
DOI10.1016/j.aca.2018.06.076
产权排序[Tao, Wenyan; Gong, Zanhua; Peng, Xia] Shenzhen Huachenyang Technol Co, Shenzhen 510081, Peoples R China; [Tao, Wenyan] Chinese Univ Hong Kong, Dept Elect Engn, Hong Kong, Hong Kong, Peoples R China; [Pan, Dawei] Chinese Acad Sci, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China; [Pan, Dawei] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
作者部门海岸带环境工程技术研究与发展中心
英文摘要A new type of nanoelectrode, nanoporous platinum (NPt) electrode was prepared on aluminum oxide membrane by thermal evaporation deposition. The morphology, conductivity and electrocatalytic activity of NPt electrode were characterized and compared with those of nanofilm-Pt electrode through scanning electron microscopy (SEM), electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV) techniques, respectively. SEM images showed that "nanocavities" observed in NPt electrode were actually 2-dimensional enclosures by linked nanoparticles. It was different from the conventional arrays of "nanocavities" formed on homogeneous metal films. EIS data indicated that NPt electrode possesses higher conductivity. Compared with that on nanofilm-Pt electrode (14.05 Omega.cm(2)), the impedance spectrum on NPt electrode exhibits a semicircle portion with much smaller diameters (1.24 Omega.cm(2) for NPt-100, 1.48 Omega.cm(2) for NPt-200). Meanwhile, the response sensitivity of NPt electrode to O-2 is 0.85 mA cm(-2), which is larger than that of nanofilm-Pt electrode (0.54 mA cm(-2)). The largest catalytic current for nitric oxide (NO) was obtained in buffer with pH value of 9.4 while for Angeli's salt (AS) was obtained in buffer with pH value of 5.4. Additionally, electrocatalytic mechanisms of NPt electrode toward NO and AS were proposed, which indicating it depended on pH value of buffer solution. (C) 2018 Elsevier B.V. All rights reserved.
文章类型Article
资助机构National Natural Science Foundations of China [21405106]; Youth Innovation Promotion Association of Chinese Academy of Sciences [2011170]; Research and Development Foundation of Science and Technology of Shenzhen [JCYJ20150324141711592, 20180502154158198]
收录类别SCI
语种英语
关键词[WOS]SPECTROSCOPY; NANOPARTICLES; ARRAYS; HNO
研究领域[WOS]Chemistry, Analytical
WOS记录号WOS:000444918000005
引用统计被引频次：7[WOS][WOS记录][WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cnhttp://ir.yic.ac.cn/handle/133337/24600
专题中科院海岸带环境过程与生态修复重点实验室_海岸带环境工程技术研究与发展中心
作者单位1.Shenzhen Huachenyang Technol Co, Shenzhen 510081, Peoples R China;
2.Chinese Univ Hong Kong, Dept Elect Engn, Hong Kong, Hong Kong, Peoples R China;
3.Chinese Acad Sci, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China;
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714Tao, Wenyan,Pan, Dawei,Gong, Zanhua,et al. Nanoporous platinum electrode grown on anodic aluminum oxide membrane: Fabrication, characterization, electrocatalytic activity toward reactive oxygen and nitrogen species[J]. ANALYTICA CHIMICA ACTA,2018,1035:44-50.
APATao, Wenyan,Pan, Dawei,Gong, Zanhua,&Peng, Xia.(2018).Nanoporous platinum electrode grown on anodic aluminum oxide membrane: Fabrication, characterization, electrocatalytic activity toward reactive oxygen and nitrogen species.ANALYTICA CHIMICA ACTA,1035,44-50.
MLATao, Wenyan,et al."Nanoporous platinum electrode grown on anodic aluminum oxide membrane: Fabrication, characterization, electrocatalytic activity toward reactive oxygen and nitrogen species".ANALYTICA CHIMICA ACTA 1035(2018):44-50.
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