Improvement in anti-aging of metallized Nafion® hydrogen sensors modified by chemical vapor deposition of polypyrrole

Yu Chuan Liu, Bing Joe Hwang, Wen Cheng Hsu

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Pt/Nafion® and Pd/Nafion® electrodes were prepared by impregnation-reduction methods in detecting hydrogen. For improving their anti-aging abilities, polypyrrole (PPy) films were chemically deposited onto the metallized electrodes. After continuously aging tests for 48 h, the sensitivities of the Pt/Nafion® and the PPy-modified Pt/Nafion® electrodes decrease by 68 and 32%, respectively, but the accompanying sacrifice is the loss in sensitivity from 0.0744 to 0.0261 μA/ppm. Similarly, the sensitivities of the Pd/Nafion® and the PPy-modified Pd/Nafion® electrodes decrease by 84 and 68%, respectively, accompanying with the sacrifice of loss in sensitivity from 0.0519 to 0.0262 μA/ppm.

Original languageEnglish
Pages (from-to)304-308
Number of pages5
JournalSensors and Actuators, B: Chemical
Volume87
Issue number2
DOIs
Publication statusPublished - Dec 10 2002
Externally publishedYes

Fingerprint

polypyrroles
Polypyrroles
Hydrogen
Chemical vapor deposition
Aging of materials
vapor deposition
Electrodes
electrodes
sensitivity
sensors
Sensors
hydrogen
Impregnation
polypyrrole
perfluorosulfonic acid

Keywords

  • Aging
  • Chemical vapor deposition
  • Metallized Nafion® electrodes
  • Polypyrrole modification

ASJC Scopus subject areas

  • Analytical Chemistry
  • Electrochemistry
  • Electrical and Electronic Engineering

Cite this

Improvement in anti-aging of metallized Nafion® hydrogen sensors modified by chemical vapor deposition of polypyrrole. / Liu, Yu Chuan; Hwang, Bing Joe; Hsu, Wen Cheng.

In: Sensors and Actuators, B: Chemical, Vol. 87, No. 2, 10.12.2002, p. 304-308.

Research output: Contribution to journalArticle

@article{06763e9c3a9746f5becb193d76ae6d64,
title = "Improvement in anti-aging of metallized Nafion{\circledR} hydrogen sensors modified by chemical vapor deposition of polypyrrole",
abstract = "Pt/Nafion{\circledR} and Pd/Nafion{\circledR} electrodes were prepared by impregnation-reduction methods in detecting hydrogen. For improving their anti-aging abilities, polypyrrole (PPy) films were chemically deposited onto the metallized electrodes. After continuously aging tests for 48 h, the sensitivities of the Pt/Nafion{\circledR} and the PPy-modified Pt/Nafion{\circledR} electrodes decrease by 68 and 32{\%}, respectively, but the accompanying sacrifice is the loss in sensitivity from 0.0744 to 0.0261 μA/ppm. Similarly, the sensitivities of the Pd/Nafion{\circledR} and the PPy-modified Pd/Nafion{\circledR} electrodes decrease by 84 and 68{\%}, respectively, accompanying with the sacrifice of loss in sensitivity from 0.0519 to 0.0262 μA/ppm.",
keywords = "Aging, Chemical vapor deposition, Metallized Nafion{\circledR} electrodes, Polypyrrole modification",
author = "Liu, {Yu Chuan} and Hwang, {Bing Joe} and Hsu, {Wen Cheng}",
year = "2002",
month = "12",
day = "10",
doi = "10.1016/S0925-4005(02)00250-2",
language = "English",
volume = "87",
pages = "304--308",
journal = "Sensors and Actuators, B: Chemical",
issn = "0925-4005",
publisher = "Elsevier",
number = "2",

}

TY - JOUR

T1 - Improvement in anti-aging of metallized Nafion® hydrogen sensors modified by chemical vapor deposition of polypyrrole

AU - Liu, Yu Chuan

AU - Hwang, Bing Joe

AU - Hsu, Wen Cheng

PY - 2002/12/10

Y1 - 2002/12/10

N2 - Pt/Nafion® and Pd/Nafion® electrodes were prepared by impregnation-reduction methods in detecting hydrogen. For improving their anti-aging abilities, polypyrrole (PPy) films were chemically deposited onto the metallized electrodes. After continuously aging tests for 48 h, the sensitivities of the Pt/Nafion® and the PPy-modified Pt/Nafion® electrodes decrease by 68 and 32%, respectively, but the accompanying sacrifice is the loss in sensitivity from 0.0744 to 0.0261 μA/ppm. Similarly, the sensitivities of the Pd/Nafion® and the PPy-modified Pd/Nafion® electrodes decrease by 84 and 68%, respectively, accompanying with the sacrifice of loss in sensitivity from 0.0519 to 0.0262 μA/ppm.

AB - Pt/Nafion® and Pd/Nafion® electrodes were prepared by impregnation-reduction methods in detecting hydrogen. For improving their anti-aging abilities, polypyrrole (PPy) films were chemically deposited onto the metallized electrodes. After continuously aging tests for 48 h, the sensitivities of the Pt/Nafion® and the PPy-modified Pt/Nafion® electrodes decrease by 68 and 32%, respectively, but the accompanying sacrifice is the loss in sensitivity from 0.0744 to 0.0261 μA/ppm. Similarly, the sensitivities of the Pd/Nafion® and the PPy-modified Pd/Nafion® electrodes decrease by 84 and 68%, respectively, accompanying with the sacrifice of loss in sensitivity from 0.0519 to 0.0262 μA/ppm.

KW - Aging

KW - Chemical vapor deposition

KW - Metallized Nafion® electrodes

KW - Polypyrrole modification

UR - http://www.scopus.com/inward/record.url?scp=0037058634&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0037058634&partnerID=8YFLogxK

U2 - 10.1016/S0925-4005(02)00250-2

DO - 10.1016/S0925-4005(02)00250-2

M3 - Article

VL - 87

SP - 304

EP - 308

JO - Sensors and Actuators, B: Chemical

JF - Sensors and Actuators, B: Chemical

SN - 0925-4005

IS - 2

ER -