NDLI: Electro-catalytic oxidation of methane at multi-walled carbon nanotubes-Nafion/nickel hydroxide modified nickel electrode

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Electro-catalytic oxidation of methane at multi-walled carbon nanotubes-Nafion/nickel hydroxide modified nickel electrode

Content Provider	Semantic Scholar
Author	Qiao, Jie Tang, Shengnan Tian, Yanni Shuang, Shaomin Dong, Chuan Choi, Martin M. F.
Copyright Year	2009
Abstract	Abstract A novel chemical modified nickel (Ni) electrode based on multi-walled carbon nanotubes (MWCNTs), Nafion film and nickel hydroxide has been successfully fabricated for methane (CH 4 ) detection at ambient conditions. The morphology of the MWCNTs–Nafion/Ni(OH) 2 film was characterized by transmission electron microscopy and the electrochemical properties of the Ni modified electrode were studied by cyclic voltammetry. The MWCNTs–Nafion/Ni(OH) 2 –Ni electrode showed good catalytic effect on the oxidation of CH 4 in 1.0 M NaOH. In addition, the modified electrode was free from nitrogen and oxygen interferences. When differential pulse voltammetry was applied to the MWCNTs–Nafion/Ni(OH) 2 –Ni electrode, a good linear relationship between the oxidation peak current ( i ) and CH 4 concentration ( C methane ) was obtained: i = 1.841 C methane + 46.25, where i is in μA and C methane is in 0.0–16.0% (v/v). The relative standard deviation for detection of 3.0% (v/v) CH 4 was 1.80% ( n = 5). The proposed Ni modified electrode is anticipated to provide a promising technique to detect CH 4 at ambient conditions.
Starting Page	402
Ending Page	407
Page Count	6
File Format	PDF HTM / HTML
DOI	10.1016/j.snb.2009.02.065
Alternate Webpage(s)	http://ims.sxu.edu.cn/docs/20100612072855225361.pdf
Alternate Webpage(s)	https://doi.org/10.1016/j.snb.2009.02.065
Volume Number	138
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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