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Abstract
In this work, the mechanism of the NO2 reaction with PEDOT-RGO composite film has been investigated via in situ Raman spectroscopy. Reduced graphene oxide (RGO), poly(3,4-ethylenedioxytiophene)-reduced graphene oxide (PEDOT-RGO) and poly(3,4-ethylenedioxytiophene)/ClO4− (PEDOT/ClO4−) films were fabricated using an electrodeposition method and used as resistance sensors of gaseous nitrogen dioxide. The experimental results indicate that NO2 causes overoxidation of the PEDOT polymer (PEDOT/ClO4− film) which leads to resistance increase and irreversible response. In contrast, the PEDOT-RGO response in the presence of NO2 is reversible. During short NO2 exposure, PEDOT from the PEDOT-RGO composite does not react to the gas but the presence of RGO in the PEDOT-RGO composite does not affect the overoxidation potential. It was found that the nitrogen dioxide reacts more readily to reduced graphene oxide, thus RGO “protects” the polymer against the adverse overoxidation process.
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Authors (5)
-
Błażej Scheibe dr inż.
- NanoBioMedical Centre Uniwersytet Adama Mickiewicza w Poznaniu
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Mirosław Sawczak dr hab. inż.
- Instytut Maszyn Przepływowych Polska Akademia Nauk
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Details
- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
SENSORS AND ACTUATORS B-CHEMICAL
no. 260,
pages 1025 - 1033,
ISSN: 0925-4005 - Language:
- English
- Publication year:
- 2018
- Bibliographic description:
- Dunst K., Trzciński K., Scheibe B., Sawczak M., Jasiński P.: Study of the NO2 sensing mechanism of PEDOT-RGO film using in situ Raman Spectroscopy// SENSORS AND ACTUATORS B-CHEMICAL. -Vol. 260, (2018), s.1025-1033
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.snb.2018.01.089
- Verified by:
- Gdańsk University of Technology
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