碳纳米管的氧化还原控制及其电化学检测多巴胺

郭聪秀; 王云伟; 童希立; 郭向云

碳纳米管的氧化还原控制及其电化学检测多巴胺

1.
中国科学院山西煤炭化学研究所, 煤转化国家重点实验室, 山西太原 030001;
2.
中国科学院大学, 北京 100049

基金项目: 煤转化国家重点实验室自主课题（2014BWZ006）.

详细信息

作者简介:
郭聪秀,博士研究生.E-mail:younrr@163.com

通讯作者:
童希立,副研究员.E-mail:tongxili@sxicc.ac.cn

中图分类号: TQ127.1⁺1
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- 被引次数: 0
出版历程
- 收稿日期: 2016-06-15
- 录用日期: 2016-10-28
- 修回日期: 2016-10-09
- 刊出日期: 2016-10-28

Oxidative modification of multi-wall carbon nanotubes for the electrochemical detection of dopamine

1.
State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China;
2.
University of the Chinese Academy of Sciences, Beijing 100049, China

Funds: In-house Project of SKLCC of China (2014BWZ006).

摘要

摘要: 利用湿化学法制备出化程度不同的多壁碳纳米管，并采用红外光谱仪、X-射线光电子能谱仪、透射电子显微镜分析样品因氧化程度不同而引起的表面特征差异。通过循环伏安法和示差脉冲伏安法研究多巴胺，尿酸和抗坏血酸在氧化程度不同的碳纳米管修饰玻碳电极上的电化学行为。其中，样品MWNCTs-R修饰的玻碳电极与其它样品相比，不仅展现出对多巴胺，尿酸和抗坏血酸更好的电催化性能，而且解决了氧化峰相互重叠的问题，可以用于在尿酸和抗坏血酸共存的条件下检测多巴胺。同时，传感器的响应电流随着多巴胺含量的增加而线性增大，线性范围为2~100 μM。结果表明，不同氧化程度导致碳纳米管表面的组成和形貌不同，表面含有羧基，并保持完整石墨层结构的碳纳米管对多巴胺有更好的电催化响应。
- 多壁碳纳米管 /
- 多巴胺 /
- 脉冲伏安法 /
- 电催化
Abstract: Multi-wall carbon nanotubes (MWCNTs) with different degrees of oxidation were prepared by a wet chemical oxidation method. Their morphology and chemical composition were characterized by infrared spectroscopy, X-ray photoelectron spectroscopy and transmission electron microscopy. The oxidized MWCNTs were coated on glassy carbon for use as electrodes and their electrocatalytic oxidation activities for dopamine, ascorbic acid and uric acid were investigated by cyclic voltammetry and differential pulse voltammetry in order to evaluate their performance for selective dopamine detection. Results indicated that the electrocatalytic oxidation activities are dependent on both the electron transfer resistance of the graphitic layers and the electrostatic attraction between dopamine and carboxyl groups on the MWCNTs. Optimized MWCNTs with an appropriate content of carboxyl groups and nearly complete graphitic layers have a wide linear response current range for dopamine contents from 2 to 100 μM, and can be used for the selective detection of dopamine in the presence of ascorbic acid and uric acid.
- Multi-walled carbon nanotubes /
- Dopamine /
- Pulse voltammetry /
- Electrocatalysis

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参考文献(26)

Li Y Y,Du J,Yang J D,et al.Electrocatalytic detection of dopamine in the presence of ascorbic acid and uric acid using single-walled carbon nanotubes modified electrode[J].Colloids and Surfaces B:Biointerfaces,2012,97:32-36.

Wightman R M,May L J,Michael A C.Detection of dopamine dynamics in the brain[J].Analytical Chemistry,1988,60(13):765-710.

Dursun Z,Gelmez B.Simultaneous determination of ascorbic acid,dopamine and uric acid at Pt nanoparticles decorated multiwall carbon nanotubes modified GCE[J].Electroanalysis,2010,22(10):1106-1114.

Moraes F C,Cabral M F,Machado S A S,et al.Electrocatalytic behavior of glassy carbon electrodes modified with multiwalled carbon nanotubes and cobalt phthalocyanine for selective analysis of dopamine in presence of ascorbic acid[J].Electroanalysis,2008,20(8):851-857.

Jiao S F,Li M G,Wang C,et al.Fabrication of Fc-SWNTs modified glassy carbon electrode for selective and sensitive determination of dopamine in the presence of AA and UA[J].Electrochimica Acta,2007,52:5939-5944.

Li Y H,Liu X S,Zeng X D,et al.Selective and sensitive detection of dopamine in the presence of ascorbic acid by molecular sieve/ionic liquids composite electrode[J].Electrochimica Acta,2011,56:2730-2734.

Zhu H R,Wu W,Zhang H,et al.Highly selective and sensitive detection of dopamine in the presence of excessive ascorbic acid using electrodes modified with C₆₀-functionalized multiwalled carbon nanotube films[J].Electroanalysis,2009,21(24):2660-2666.

Wu W C,Chang H W,Tsai Y C.Electrocatalytic detection of dopamine in the presence of ascorbic acid and uric acid at silicon carbide coated electrodes[J].Chemical Communication,2011,47:6458-6460.

Wang Y,Li Y M,Tang L H,et al.Application of graphene-modified electrode for selective detection of dopamine[J].Electrochemistry Communications,2009,11:889-892.

Iijima S.Helical microtubules of graphitic carbon[J].Nature,1991,354:56-58.

Zhang W,Yuan R,Chai Y Q,et al.A simple strategy based on lanthanum-multiwalled carbon nanotube nanocomposites for simultaneous determination of ascorbic acid,dopamine,uric acid and nitrite[J].Sensors and Actuators B:Chemical,2012,166-167:601-607.

Yang S L,Yin Y L,Li G,et al.Immobilization of gold nanoparticles on multi-wall carbon nanotubes as an enhanced material for selective voltammetric determination of dopamine[J].Sensors and Actuators B:Chemical,2013,178:217-221.

Ling Y Y,Huang Q A,Zhu M S,et al.A facile one-step electrochemical fabrication of reduced graphene oxide-mutilwall carbon nanotubes phospotungstic acid composite for dopamine sensing[J].Journal of Electroanalytical Chemistry,2013,693:9-15.

毕松,苏勋家,侯根良,等.多壁碳纳米管的氧化剪断处理及其分散性[J].新型炭材料,2014,29(2):109-117. (BI Song,SU Xun-jia,HOU Gen-liang,et al.Investigations on oxidation cutting and dispersibility of multi-walled carbon nanotubes[J].New Carbon Materials,2014,29(2):109-117.)

李莉香,李峰.羰基、羧基和羟基表面官能团对碳纳米管电容量的影响[J].新型炭材料,2011,26(3):224-228. (LI Li-xiang,LI Feng.The effect of carbonyl,carboxyl and hydroxyl groups on the capacitance of carbon nanotubes[J].New Carbon Materials,2011,26(3):224-228.)

安亭,曹慧群,赵凤起,等.纳米Ag/CNTs复合材料的制备、表征及对环三亚甲基三硝胺热分解的影响[J].物理化学学报,2012,28(9),2202-2208. (AN Ting,CAO Hui-qun,ZHAO Feng-qi,et al.Preparation and characterization of Ag/CNTs nanocomposite and its effect on thermal decomposition of cyclotrimethylene trinitramine[J].Acta Physico-Chimica Sinica,2012,28(9),2202-2208.)

Tsang S C,Chen Y K,Harris P J F,et al.A simple chemical method of opening and filling carbon nanotubes[J].Nature,1994,372:159-162.

Zhu C Z,Guo S J,Fang Y X,et al.Reducing sugar:New functional molecules for the green synthesis of graphene nanosheets[J].ACS nano,2010,4(4):2429-2437.

Hummers W S,Offeman R E.Preparation of graphitic oxide[J].J Am Chem Soc,1958,80:1339.

Ong B K,Poh H L,Chua C K,et al.Graphenes prepared by hummers,staudenmaier and hofmann methods for analysis of TNT-based nitroaromatic explosives in seawater[J].Electroanalysis,2012,24(11):2085-2093.

Zhao Z Y,Yang Z H,Hu Y W,et al.Multiple functionalization of multi-walled carbon nanotubes with carboxyl and amino groups[J].Applied Surface Science,2013,276:476-481.

Liu L Q,Qin Y J,Guo Z X,et al.Reduction of solubilized multi-walled carbon nanotubes[J].Carbon,2003,41:331-335.

Ago H,Kugler T,Cacialli F,et al.Work functions and surface functional groups of multiwall carbon nanotubes[J].J Phys Chem B,1999,103:116-8121.

Edwards E R,Antunes E F,Botelho E C,et al.Evaluation of residual iron in carbon nanotubes purified by acid treatments[J].Applied Surface Science,2011,258:641-648.

Zoltán Kónya,István Vesselényi,János Kiss,et al.XPS study of multiwall carbon nanotube synthesis on Ni-,V-,and Ni,V-ZSM-5 catalysts[J].Applied Catalysis A:General,2004,260:55-61.

Li S J,He J Z,Zang M J,et al.Electrochemical detection of dopamine using water-soluble sulfonated graphene[J].Electrochimica Acta,2013,102:58-65.

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