全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
材料工程  2013 

MWCNTs催化Ru(bpy)32+阴极电致化学发光

DOI: 10.3969/j.issn.1001-4381.2013.12.012

Keywords: 纳米材料,多壁碳纳米管,电致化学发光,三联吡啶钌,多巴胺

Full-Text   Cite this paper   Add to My Lib

Abstract:

采用多壁碳纳米管(MWCNTs)修饰的玻碳(GC)电极作为工作电极(MWCNTs/GC),检测Ru(bpy)32+水溶液的电致化学发光(ECL)现象。研究发现当循环伏安(CVs)曲线扫描还原至+0.3V时,可观察到Ru(bpy)32+的阴极ECL。利用MWCNTs/GC的催化性质可以检测溶液中多巴胺(DA)的含量,其检测限可达1.2×10-11M。提出MWCNTs在电化学还原过程中产生的中间体可以引发Ru(bpy)32+的阴极ECL强度。

References

[1]  LIJIMA S.Helical microtubules of graphitic carbon[J].Nature, 1991, 354(6348):56-58.
[2]  QU J Y, SHEN Y, QU X H, et al. Electrocatalytic reduction of oxygen at multi-walled carbon nanotubes and cobalt porphyrin modified glassy carbon electrode[J]. Electroanalysis, 2004, 16(17):1444-1450.
[3]  WANG F, HU S S. Electrochemical reduction of dioxygen on carbon nanotubes-dihexadecyl phosphate film electrode[J]. J Electroanal Chem, 2005, 580(1):68-77.
[4]  TANG Y F, ALLEN B L, KAUFFMAN D R, et al. Electrocatalytic activity of nitrogen-doped carbon nanotube cups[J]. J Am Chem Soc, 2009, 131(37):13200-13201.
[5]  LUO H X, SHI Z J, LI N Q, et al. Investigation of the electrochemical and electrocatalytic behavior of single-wall carbon nanotube film on a glassy carbon electrode[J]. Anal Chem, 2001, 73(5):915-920.
[6]  CAO W D, FERRANCE J P, DEMAS J, et al. Quenching of the electrochemiluminescence of tri(2, 2'-bipyridine)ruthenium(Ⅱ) by ferrocene and its potential application to quantitative DNA detection[J]. J Am Chem Soc, 2006, 128(23):7572-7578.
[7]  XU X H, YANG H C, MALLOUK T E, et al. Immobilization of DNA on an aluminum(Ⅲ) alkanebisphosphonate thin film with electrogenerated chemiluminescent detection[J]. J Am Chem Soc, 1994, 116(18):8386-8387.
[8]  YUAN J P, WANG E K. Effects of divalent metal ions on electrochemiluminescence sensor with Ru(bpy)32+ immobilized in eastman-AQ membrane[J]. Electroanalysis, 2008, 20(9):949-954.
[9]  TAO Y, LIN Z J, CHEN X M, et al. Tris (2, 2'-bipyridyl)ruthenium electrochemiluminescence sensor based on carbon nanotube/organically modified silicate films[J]. Anal Chim Acta, 2007, 594(2):169-174.
[10]  GUO Z H, DONG S J. Electrogenerated chemiluminescence from Ru(bpy)32+ ion-exchanged in carbon nanotube/perfluorosulfonated ionomer composite films[J]. Anal Chem, 2004, 76(10):2683-2688.
[11]  HUANG R F, ZHENG X W, QU Y J. Highly selective electrogenerated chemiluminescence (ECL) for sulfide ion determination at multi-wall carbon nanotubes-modified graphite electrode[J]. Anal Chim Acta, 2007, 582(2):267-274.
[12]  CAO W D, XU G B, ZHANG Z L, et al.Novel tris(2, 2'-bipyridine)ruthenium(Ⅱ) cathodic electrochemiluminescence in aqueous solution at a glassy carbon electrode[J]. Chem Commum, 2002, (14):1540-1541.
[13]  MENENDEZ J A, XIA B, PHILLIPS J, et al. On the modification and characterization of chemical surface properties of activated carbon: microcalorimetric, electrochemical, and thermal desorption probes[J]. Langmuir, 1997, 13(13):3414-3421.
[14]  STRELKO V V, KARTEL N T, DUKHNO I N, et al. Methanism of reductive oxygen adsorption on active carbons with various surface chemistry[J]. Surf Sci, 2004, 548(1-3):281-290.
[15]  CHANG Y, PALACIOS R E, FAN F F, et al.Electrogenerated chemiluminescence of single conjugated polymer nanoparticles[J].J Am Chem Soc, 2008, 130(6):8906-8907.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133