XPS, SEM and electrochemical characterization of a platinum-based glassy carbon modified electrode. Electrocatalytic oxidation of ethanol in acidic medium

被引：26
|
作者：
Casella, IG [1 ]
Desimoni, E [1 ]
机构：
[1] UNIV MILAN,DIPARTIMENTO FISIOL PIANTE COLTIVATE & CHIM AGR,I-20133 MILAN,ITALY
来源：
ELECTROANALYSIS | 1996年 / 8卷 / 05期
关键词：
modified electrodes; electrocatalysis; platinum deposition; ethanol;
D O I：
10.1002/elan.1140080509
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A platinum-based chemically modified glassy carbon electrode (Pt-CME) was characterized in acidic medium by X-ray photoelectron spectroscopy, scanning electron microscopy and electrochemical techniques. A uniform distribution of platinum microparticles of different form and size (hexagonal, grain-like and globular) was present on the surface of glassy carbon. The chemical species present on the electrode surface changed upon polarization. At higher potential values (1.5V) species such Pt(OH)(2), Pt(OH)(ads) and Pt(OH)(4) formed at lower potential values were transformed into PtO, PtOads and PtO2 respectively. A few aspects of the electrooxidation of ethanol in acidic medium were investigated on the Pt-CME described.
引用
收藏
页码：447 / 453
页数：7
相关论文
共 50 条
  • [21] Electrocatalytic oxidation of methanol on a platinum modified carbon nanotube electrode
    Wen, Ying
    Ye, Jian-Shan
    Zhang, Wei-De
    Sheu, Fwu-Shan
    Xu, Guo Qin
    MICROCHIMICA ACTA, 2008, 162 (1-2) : 235 - 243
  • [22] ELECTROCATALYTIC OXIDATION OF TETRAHYDROFURAN AT A PLATINIZED PLATINUM-ELECTRODE IN AQUEOUS ACIDIC MEDIUM
    HORANYI, G
    RIZMAYER, EM
    ELECTROCHIMICA ACTA, 1985, 30 (06) : 767 - 772
  • [23] Electrochemical and XPS characterization of glassy carbon electrode surface effects on the preparation of a monomeric molybdate(VI)-modified electrode
    Ilangovan, G
    Pillai, KC
    LANGMUIR, 1997, 13 (03) : 566 - 575
  • [24] Electrochemical preparation, characterization, and electrocatalytic studies of Nafion–ruthenium oxide modified glassy carbon electrode
    Chien-Chieh Ti
    S. Ashok Kumar
    Shen-Ming Chen
    Journal of Solid State Electrochemistry, 2009, 13 : 397 - 406
  • [25] Electrocatalytic oxidation of NADH at an ordered carbon nanotubes modified glassy carbon electrode
    Chen, J
    Bao, JC
    Cai, CX
    Lu, TH
    ANALYTICA CHIMICA ACTA, 2004, 516 (1-2) : 29 - 34
  • [26] Electrocatalytic oxidation of hydrazine at epinephrine modified glassy carbon electrode (EPMGCE).
    Golabi, SM
    Mirzazadeh, J
    IRANIAN JOURNAL OF CHEMISTRY & CHEMICAL ENGINEERING-INTERNATIONAL ENGLISH EDITION, 2003, 22 (01): : 43 - 54
  • [27] Electrocatalytic oxidation of uric acid at cysteine modified glassy carbon electrode
    Yan, Z
    Zhang, JR
    Fang, HQ
    ANALYTICAL LETTERS, 1999, 32 (02) : 223 - 234
  • [28] Electrocatalytic oxidation for formic acid and formaldehyde on platinum implanted glassy carbon electrode
    Zhang, CZ
    Yang, J
    Wu, ZD
    CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE, 2001, 22 (06): : 966 - 970
  • [29] Electrocatalytic Oxidation for Formic Acid and Formaldehyde on Platinum Implanted Glassy Carbon Electrode
    Zhang, Cun-Zhong
    Yang, Jing
    Wu, Zhong-Da
    Kao Teng Hsueh Hsiao Hua Heush Hsueh Pao/ Chemical Journal of Chinese Universities, 2001, 22 (06):
  • [30] Electrochemical characterization of pyrocatechol sulfonephthalein-modified glassy carbon electrode and separation of electrocatalytic responses for ascorbic acid and dopamine oxidation
    Cai, CX
    Xue, KH
    MICROCHEMICAL JOURNAL, 1999, 61 (03) : 183 - 197
12345