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Preparation, Electrochemical Property and Application in Bulk-modified Electrode of Dawson-type Phosphomolybdate-doped Polypyrrole Composite Nanoparticles
作者姓名:WANG  Xiu-li  ZHAO  Hai-yan  WANG  Yi-fei
作者单位:WANG Xiu-li **,ZHAO Hai-yan and WANG Yi-feiFaculty of Chemistry and Chemical Engineering,Bohai University,Jinzhou 121000,P. R. China
基金项目:辽宁省自然科学基金,辽宁省教育厅资助项目
摘    要:IntroductionPolyoxometalates(POMs)have attracted much at-tention in catalysis,medicine,bioanalysis and materialsciences due to their chemical,structural and electro-nic versatility in recent years1—3].One of the most im-portant properties of POMs is the…

关 键 词:道森型磷钼酸盐  聚吡咯  纳米化合物  填充改性  碳糊电极  电催化作用
文章编号:1005-9040(2006)-05-556-04
收稿时间:2006-05-15

Preparation, Electrochemical Property and Application in Bulk-modified Electrode of Dawson-type Phosphomolybdate-doped Polypyrrole Composite Nanoparticles
WANG Xiu-li ZHAO Hai-yan WANG Yi-fei.Preparation, Electrochemical Property and Application in Bulk-modified Electrode of Dawson-type Phosphomolybdate-doped Polypyrrole Composite Nanoparticles[J].Chemical Research in Chinese University,2006,22(5):556-559.
Authors:Xiu-li WANG  Hai-yan ZHAO  Yi-fei WANG
Institution:aFaculty of Chemistry and Chemical Engineering, Bohai University, Jinzhou 121000, P. R. China
Abstract:A kind of inorganic-organic hybrid semiconductor composite nanoparticles: Dawson-type phosphomolybdate-doped polypyrrole(P_2Mo_ 18-PPy) was designed and prepared using microemulsion oxidation-polymerization at room temperature and characterized by TEM and IR. The P_2Mo_ 18-PPy was used as a bulk-modifier to fabricate a chemically modified carbon paste electrode(CPE) by direct mixing, which represents the example of polyoxometalates(POMs)-doped semiconductor polymer nanoparticles modified electrode. Both the advantage of POMs-doped polymer and the surface-renewal property of the CPE were fully utilized. The electrochemical behavior of the P_2Mo_ 18-PPy bulk-modified CPE(P_2Mo_ 18-PPy-CPE) was investigated with cyclic voltammetry. Three couples of reversible redox peaks were observed in the range from 800 to 0 mV, which corresponded to the reduction and oxidation through two-, four- and six-electron processes, respectively. The P_2Mo_ 18-PPy-CPE showed a high electrocatalytic activity for the reduction of nitrite, which expanded the application of POMs-doped semiconductor polymer nanoparticles.
Keywords:Dawson-type phosphomolybdate  Polypyrrole  Composite nanoparticles  Bulk-modified  Carbon paste electrode  Electrocatalysis
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