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

研究成果: 雜誌貢獻文章

22 引文 斯高帕斯(Scopus)

摘要

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.

原文英語
頁(從 - 到)304-308
頁數5
期刊Sensors and Actuators, B: Chemical
87
發行號2
DOIs
出版狀態已發佈 - 十二月 10 2002
對外發佈Yes

ASJC Scopus subject areas

  • Analytical Chemistry
  • Electrochemistry
  • Electrical and Electronic Engineering

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