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 language | English |
|---|---|
| Pages (from-to) | 304-308 |
| Number of pages | 5 |
| Journal | Sensors and Actuators, B: Chemical |
| Volume | 87 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - Dec 10 2002 |
| Externally published | Yes |
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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 journal › Article
}
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 -