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Preparation of Ordered Mesoporous Carbon/Polyaniline Electrodes and as Electrochemical Sensors for Cu2+
Alternative TitlePreparation of Ordered Mesoporous Carbon/Polyaniline Electrodes and as Electrochemical Sensors for Cu2+
Guo Zhuo; Guo Tong; Zhao ChangLi; Gao YunPeng; Li Sha
2010
Source PublicationCHINESE JOURNAL OF INORGANIC CHEMISTRY
ISSN1001-4861
Volume26Issue:11Pages:1927-1933
AbstractA new electrode, obtained by the dispersion of ordered mesoporous carbon (MC) nanoparticles onto polyaniline (PANI) was presented in this paper. Ordered mesoporous carbon was prepared by pyrolysis of sucrose filled in the mesoporous channels of SBA-15 at 1 200 degrees C, and followed by dissolution of the silica matrix in hydrofluoric acid. The pore structure of the MC material, was evaluated using XRD, nitrogen adsorption, TEM. SEM showed that PANI-MC films presented a wholy modified morphology when compared to PANI film. Electrochemical characterization indicated that the potential shift toward negative direction. This can be attributed to the porous feature of MC, which imposes resistance for ion migration in mesoporous. The deposition potential and time had been optimized for determination of Cu2+ in aqueous solution. ASV analysis revealed that the new electrode presented a linear response to low concentrations of Cu2+. Under optimized conditions, the current showed a linear dependence with concentration in the range 1.00x10(-8)similar to 1x10(-6) mol . L-1. The detection limit was 6x10(-9) mol . L-1. The results showed good reproducibility and stability.
Other AbstractA new electrode, obtained by the dispersion of ordered mesoporous carbon(MC) nanoparticles onto polyaniline(PANI) was presented in this paper. Ordered mesoporous carbon was prepared by pyrolysis of sucrose filled in the mesoporous channels of SBA-15 at 1 200 ℃, and followed by dissolution of the silica matrix in hydrofluoric acid. The pore structure of the MC material was evaluated using XRD, nitrogen adsorption,TEM.SEM showed that PANI-MC films presented a wholy modified morphology when compared to PANI film. Electrochemical characterization indicated that the potential shift toward negative direction. This can be attributed to the porous feature of MC, which imposes resistance for ion migration in mesoporous. The deposition potential and time had been optimized for determination of Cu2+ in aqueous solution. ASV analysis revealed that the new electrode presented a linear response to low concentrations of Cu2+. Under optimized conditions, the current showed a linear dependence with concentration in the range 1.00 ×10-81×10-6 mol. L-1.The detection limit was 6×10-9 mol. L-1.The results showed good reproducibility and stability
KeywordPOLYANILINE CARBON ACID COMPOSITE FIBERS IONS mesoporous carbon copper determination electrodes
Indexed ByCSCD
Language英语
Funding Project[National Science Foundation of China]
CSCD IDCSCD:4064776
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Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/146829
Collection中国科学院金属研究所
Affiliation中国科学院金属研究所
Recommended Citation
GB/T 7714
Guo Zhuo,Guo Tong,Zhao ChangLi,et al. Preparation of Ordered Mesoporous Carbon/Polyaniline Electrodes and as Electrochemical Sensors for Cu2+[J]. CHINESE JOURNAL OF INORGANIC CHEMISTRY,2010,26(11):1927-1933.
APA Guo Zhuo,Guo Tong,Zhao ChangLi,Gao YunPeng,&Li Sha.(2010).Preparation of Ordered Mesoporous Carbon/Polyaniline Electrodes and as Electrochemical Sensors for Cu2+.CHINESE JOURNAL OF INORGANIC CHEMISTRY,26(11),1927-1933.
MLA Guo Zhuo,et al."Preparation of Ordered Mesoporous Carbon/Polyaniline Electrodes and as Electrochemical Sensors for Cu2+".CHINESE JOURNAL OF INORGANIC CHEMISTRY 26.11(2010):1927-1933.
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