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Title:
A solid-contact Pb2+-selective polymeric membrane electrode with Nafion-doped poly(pyrrole) as ion-to-electron transducer
Author: Yin, TanJi(尹坦姬)1,2,3; Pan, Dawei1,4; Wei Qin(秦伟)1
Source: JOURNAL OF SOLID STATE ELECTROCHEMISTRY
ISSN: 1432-8488
Issued Date: 2012-02-01
Volume: 16, Issue:2, Pages:499-504
Keyword: Solid contact ; Ion-selective electrode ; Lead ; Poly(pyrrole) ; Nafion
Subject: Electrochemistry
Rank: [Yin, Tanji; Pan, Dawei; Qin, Wei] Chinese Acad Sci, Shandong Prov Key Lab Coastal Zone Environm Proc, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China; [Yin, Tanji] Chinese Acad Sci, S China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China; [Yin, Tanji] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China; [Pan, Dawei] Hunan Univ, State Key Lab Chemo Biosensing & Chemometr, Changsha 410082, Peoples R China
Corresponding Author: Qin, W (reprint author), Chinese Acad Sci, Shandong Prov Key Lab Coastal Zone Environm Proc, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China. wqin@yic.ac.cn
Department: 环境化学实验室 
English Abstract: Conducting polymer poly(pyrrole) (PPy) doped with Nafion was successfully used as ion-to-electron transducer in the construction of a solid-contact Pb2+-selective polymeric membrane electrode. The Nafion dopant can effectively increase the capacitance of the conducting polymer and improve the mechanical robustness of the coating. The transducer layer, PPy-Nafion, characterized by cyclic voltammetry and electrochemical impedance spectroscopy, exhibits a sufficiently high bulk (redox) capacitance and fast ion and electron transport process. The new Pb2+-selective polymeric membrane electrode, based on PPyNafion film as solid contact, shows stable Nernstian characteristics in Pb(NO3)(2) solution within the concentration range of 1.0 x 10(-7)-1.0 x 10(-3) M, and the detection limit is 4.3 x 10(-8) M. The potential stability of the electrode and the influence of the interfacial water layer were also evaluated by chronopotentiometry and potentiometric water layer test, respectively. The results show that the solid-contact Pb2+-selective electrode, based on PPy-Nafion film as ion-toelectron transducer, can effectively overcome the potential drift and reduce the water layer between the PPy-Nafion transducer layer and the ion-selective membrane.
WOS Subject Extended: Electrochemistry
WOS Keyword Plus: TIME-DEPENDENT PHENOMENA ; LOWER DETECTION LIMIT ; SELECTIVE ELECTRODES ; POTENTIAL RESPONSE ; POLYPYRROLE ; SENSORS ; POLY(3,4-ETHYLENEDIOXYTHIOPHENE) ; COEFFICIENTS ; BEHAVIOR ; CARBON
DOC Type: Article
Indexed Type: SCI
Related URLs: 查看原文
Language: 英语
WOS ID: WOS:000301040900012
Citation statistics:
Content Type: 期刊论文
URI: http://ir.yic.ac.cn/handle/133337/5498
Appears in Collections:环境化学实验室_期刊论文

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description.institution: 1.Chinese Acad Sci, Shandong Prov Key Lab Coastal Zone Environm Proc, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
2.Chinese Acad Sci, S China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
4.Hunan Univ, State Key Lab Chemo Biosensing & Chemometr, Changsha 410082, Peoples R China

Recommended Citation:
Yin, Tanji,Pan, Dawei,Qin, Wei. A solid-contact Pb2+-selective polymeric membrane electrode with Nafion-doped poly(pyrrole) as ion-to-electron transducer[J]. JOURNAL OF SOLID STATE ELECTROCHEMISTRY,2012,16(2):499-504.
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