[1]孙向英,刘斌,徐金瑞.金属杂多酸聚吡咯修饰电极的制备及应用[J].华侨大学学报(自然科学版),2001,22(3):264-267.[doi:10.3969/j.issn.1000-5013.2001.03.010]
　Sun Xiangying,Liu Bin,Xu Jinrui.Preparing and Using Modified Electrode with Metal-Substituted phospho-Heteropolytungstate Doping into Its PPy Film[J].Journal of Huaqiao University(Natural Science),2001,22(3):264-267.[doi:10.3969/j.issn.1000-5013.2001.03.010]
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金属杂多酸聚吡咯修饰电极的制备及应用()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第22卷
期数:
2001年第3期
页码:
264-267
栏目:
出版日期:
2001-07-20

文章信息/Info

Title:
Preparing and Using Modified Electrode with Metal-Substituted phospho-Heteropolytungstate Doping into Its PPy Film
文章编号:
1000-5013(2001)03-0264-04
作者:
孙向英; 刘斌; 徐金瑞
华侨大学材料科学与工程学院
Author(s):
Sun Xiangying;  Liu Bin;  Xu Jinrui
College of Mater. Sci. & Eng., Huaqiao Univ., 362011, Quanzhou
关键词:
磷钨杂多酸盐;  聚吡咯;  化学修饰电极;  亚硝酸根
Keywords:
phospho heteropoly tungstate;  polypyrrole;  chemically modified electrode;  nitrite
分类号:
O646
DOI:
10.3969/j.issn.1000-5013.2001.03.010
摘要:
在圆盘电极上,用电化学方法将单缺位 Dawson型金属取代磷钨杂多酸盐 [α2 - K8P2 W17O61(Ni( ) OH2 )· 17H2 O,α2 - K8P2 W17O61(Co( ) OH2 )· 16 H2 O]的阴离子 (P2 W17)掺杂到聚吡咯 (PPy)薄膜中,制成 PPy/ P2 W17/ GC化学修饰电极 .研究电极对 NO-2 电还原过程的催化机理 .其还原电流 ipc值与 NO-2 浓度在 7.4 1× 10 -6~ 8.2 4× 10 -5mol· L-1和 1.74× 10 -4~ 1.2 1× 10 -2 mol· L-1范围内,呈良好的线性关系 .其中检测下限为 3.10× 10 -7mol· L-1,可用于酸雨中 NO-2 的测定
Abstract:
By doping electrochemically the anion P 2W 17 of Dawson type metal substituted phospho heteropolytungstate with one defect site, namely, [ α 2 K 8P 2W 17 O 61 (Ni (Ⅱ) OH 2)·17H 2O, α 2 K 8P 2W 17 O 61 (Co (Ⅱ) OH 2)·16H 2O] into polypyrrole (PPy) film on a disk electrode, a PPy/P 2W 17 /GC chemically modified electrode is prepared. The mechanism of its catalysis of NO - 2 electrochemical reduction process is studied. A good linear relation of its reduction current I pc value and C NO 2 is shown within the range 7.41×10 -6 ~8.24×10 -5 mol·L -1 and 1.74×10 -4 ~1.21×10 -2 mol·L -1 . It has a detection limit above 3.10×10 -7 mol·L -1 . It can be used for determining NO - 2 in acid rain.

参考文献/References:

[1] 胡春华, 郑玲哲. SOxNOx测定技术的最新发展 [J]. 环境科学与技术, 1999(2):46-49.
[2] Sun Eenling, Zhang Song, Liu Huizhang. Electrocatalytic reduction of nitrite at a glassy carbon electrode surface modified with palladium(Ⅱ) substituted keggin type heteropolytungstate [J]. Analytical Biochemistry, 1999.101-103.
[3] Toth J E. Auson electrocatalytic reduction of nitrite and nitric oxide to ammonia with iron-substituted polyoxotungstates [J]. Journal of the American Chemical Society, 1989.2444-2451.doi:10.1021/ja00189a012.
[4] David K L, Warren K M, Thomas N. Highly oxidation resistant inorganic-porphyrin analogue polyoxometalate oxidation catalysts.(I) The synthesis and characterization of aqueous-soluble potassium salts of α2-P2W17O61(Mn+OH2)(n-10) and Organic Solvent Soluble Tetra-n-butylammonium Salts of α2-P2W17O61(Mn+Br)(n-11) (M=Mn3+ Fe3+ Co2+ Ni2+ Cu2+) [J]. Journal of the American Chemical Society, 1991, (113):7209-7213.
[5] 董绍俊, 车广礼, 谢远武. 化学修饰电极 [M]. 北京:科学出版社, 1995.287-290.
[6] 庄会荣, 冯尚彩, 任秀莲. 溴酸钾氧化啶红催化光度法测定痕理亚硝酸根离子 [J]. 分析试验室, 1998(2):72-74.

相似文献/References:

[1]陈国华,颜文礼.化学法合成导电聚吡咯的研究现状[J].华侨大学学报(自然科学版),1994,15(2):172.[doi:10.11830/ISSN.1000-5013.1994.02.0172]
　Chen Guohua,Yan Wenli.A Review on the Conductive Polypyrrole Prepared Chemically[J].Journal of Huaqiao University(Natural Science),1994,15(3):172.[doi:10.11830/ISSN.1000-5013.1994.02.0172]

备注/Memo

备注/Memo:
福建省自然科学基金资助项目; 福建省科学技术委员会国际合作基金资助项目
更新日期/Last Update: 2014-03-23