A new electrogenerated chemiluminescence peak of lucigenin in the hydrogen-evolution region induced by platinum nanoparticles

被引:15
作者
Guo, Ji-Zhao [1 ]
Cui, Hua [1 ]
Xu, Sheng-Liang [1 ]
Dong, Yong-Ping [1 ]
机构
[1] Univ Sci & Technol China, Dept Chem, Hefei 230026, Anhui, Peoples R China
关键词
D O I
10.1021/jp065614q
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The electrogenerated chemiluminescence (ECL) behavior of lucigenin at a glassy carbon electrode in the presence of platinum nanoparticles dispersed in alkaline aqueous solutions was studied under conventional cyclic voltammetry (CV). Two ECL peaks were observed at -0.65 and -2.0 V (vs SCE), respectively. ECL-1 was a conventional ECL peak of lucigenin also observed in the absence of platinum nanoparticles. ECL-2 was a new ECL peak appearing in the hydrogen-evolution potential region. It was found that ECL-1 decreased and ECL-2 increased with an increase in the concentration of platinum nanoparticles. The ECL properties under various conditions were studied. It has been proposed that ECL-2 is likely due to that reductive intermediate HadsPt0 formed during the hydrogen-evolution process that reduced lucigenin cation (Luc(2+)) to monocation radial (Luc(.+)); Luc(.+) and HadsPt0 reacted with dissolved oxygen to generate O2(.-), which interacted with Luc(.+) to produce the excited state N-methylacridone (NMA), giving rise to light emission at 495 nm. Pt nanoparticles synthesized in various methods showed different catalysis abilities for ECL-2. Furthermore, palladium particles similar to platinum particles can also catalyze the generation of ECL-2 while gold particles can not.
引用
收藏
页码:606 / 611
页数:6
相关论文
共 45 条
  • [1] Platinum participation in the hydrogenation of phenylacetylene by Ru5(CO)15(C)[Pt(PBu3t)]
    Adams, RD
    Captain, B
    Zhu, L
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (10) : 3042 - 3043
  • [2] Reducing activity of colloidal platinum nanoparticles for hydrogen peroxide, 2,2-diphenyl-1-picrylhydrazyl radical and 2,6-dichlorophenol indophenol
    Aiuchi, T
    Nakajo, S
    Nakaya, K
    [J]. BIOLOGICAL & PHARMACEUTICAL BULLETIN, 2004, 27 (05) : 736 - 738
  • [3] Electrochemistry and electrogenerated chemiluminescence of CdTe nanoparticles
    Bae, Y
    Myung, N
    Bard, AJ
    [J]. NANO LETTERS, 2004, 4 (06) : 1153 - 1161
  • [4] Electrocatalytic reduction of dioxygen at platinum particles dispersed in a polyaniline film
    Coutanceau, C
    Croissant, MJ
    Napporn, T
    Lamy, C
    [J]. ELECTROCHIMICA ACTA, 2000, 46 (04) : 579 - 588
  • [5] Multichannel electrochemiluminescence of luminol in neutral and alkaline aqueous solutions on a gold nanoparticle self-assembled electrode
    Cui, H
    Xu, Y
    Zhang, ZF
    [J]. ANALYTICAL CHEMISTRY, 2004, 76 (14) : 4002 - 4010
  • [6] Potential-dependent electrochemiluminescence of luminol in alkaline solution at a gold electrode
    Cui, H
    Zhang, ZF
    Zou, GZ
    Lin, XQ
    [J]. JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2004, 566 (02): : 305 - 313
  • [7] Multichannel electrogenerated chemiluminescence of lucigenin in neutral and alkaline aqueous solutions on a gold nanoparticle self-assembled gold electrode
    Cui, Hua
    Dong, Yong-Ping
    [J]. JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2006, 595 (01) : 37 - 46
  • [8] Electrochemistry and electrogenerated chemiluminescence from silicon nanocrystal quantum dots
    Ding, ZF
    Quinn, BM
    Haram, SK
    Pell, LE
    Korgel, BA
    Bard, AJ
    [J]. SCIENCE, 2002, 296 (5571) : 1293 - 1297
  • [9] Sensitive and selective determination of aluminium by peroxyoxalate chemiluminescence detection of the lumogallion complex
    Du, M
    Huie, CW
    [J]. ANALYTICA CHIMICA ACTA, 2001, 443 (02) : 269 - 276
  • [10] Oligonucleotide-functionalized gold nanoparticles as probes in a dry-reagent strip biosensor for DNA analysis by hybridization
    Glynou, K
    Ioannou, PC
    Christopoulos, TK
    Syriopoulou, V
    [J]. ANALYTICAL CHEMISTRY, 2003, 75 (16) : 4155 - 4160