高等学校化学学报 ›› 2003, Vol. 24 ›› Issue (6): 992.

• 论文 • 上一篇    下一篇

钒取代Keggin型杂多酸的多层组装和电催化性能研究

翟剩勇, 刘建允, 金永东, 董绍俊   

  1. 中国科学院长春应用化学研究所电分析化学国家重点实验室, 长春 130022
  • 收稿日期:2002-02-07 出版日期:2003-06-24 发布日期:2003-06-24
  • 通讯作者: 董绍俊(1931年出生),女,研究员,博士生导师,第三世界科学院院士,主要从事电分析化学的研究.
  • 基金资助:

    国家自然科学基金(批准号:20275036)资助

Layer-by-layer Assemblies Consisting of Vandium-substituted Keggin Type Heteropolytungstate Anions and Their Electrocatalytic Behavior

ZHAI Sheng-Yong, LIU Jian-Yun, JIN Yong-Dong, DONG Shao-Jun   

  1. State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
  • Received:2002-02-07 Online:2003-06-24 Published:2003-06-24

摘要: 用层层组装的方法在4-氨基苯甲酸预修饰的玻碳电极上交替沉积过渡金属钒取代的杂多酸H3PW6V6O6-40(简称PW6V6)和联吡啶锇取代的聚乙烯吡啶(QPVP-Os).用表面等离子体共振(SPR)技术和循环伏安(CV)法对多层膜进行了表征.结果表明,多层膜的生长均匀,平均厚度为2.88nm.还研究了多层膜对亚硝酸根(NO2-)和溴酸根(BrO3-)的催化还原活性.

关键词: 层层组装, 钒取代的杂多酸, 电催化还原

Abstract: Vanadium-substituted heteropolytungstate anions(H3PW6V6O6-40, denoted as PW6V6)-containing multilayer films have been fabricated on the 4-aminobenzoic acid(4-ABA) modified GCE surface by alternating deposition with a quaternized poly(4-vinylpyridine) partially complexed with osmium bis(2,2-bipyridine)(denoted as QPVP-Os). Surface plasmon resonance(SPR) spectroscopy and cyclic voltammetry(CV) have been used to characterize the growing behavior of the as-prepared multilayer films. It is shown that the multilayer films are uniform. The average thickness for a bilayer of QPVP-Os/PW6V6 in the multilayer films is 2.88 nm. The electrocatalytic activities of the multilayer films for the reduction of BrO3- and NO2- have been investigated.

Key words: Layer-by-layer assembly, Vanadium-substituted heteropolytungstate anions, Electrocatalytic reduction

中图分类号: 

TrendMD: