Enhanced thermoelectric performance and ammonia sensing properties of sulfonated polyaniline/graphene thin films
- Enhanced thermoelectric performance and ammonia sensing properties of sulfonated polyaniline/graphene thin films
- 조무환; 이진태; 모드안사리; 칸모하마드만숩; 사지드안자리; 아말무하마드이크라술
- ELECTRICAL-CONDUCTIVITY; GRAPHENE NANOPLATELETS; THERMAL-STABILITY; NANOCOMPOSITES; NANOTUBES
- Issue Date
- ELSEVIER SCIENCE BV
- MATERIALS LETTERS, v.114, pp.159 - 162
- Highly conducting nanocomposite film of polyaniline (Pani) with graphene (GN) was prepared by incorporating GN nanoplatelets in Pani matrix, followed by sulfonating it with fuming sulfuric acid. Sheet-like GN nanoplatelets were distributed uniformly in a Pani matrix, leading to high electrical conductivity due to pi-pi interaction between sulfonated Pani (s-Pani) and GN. Studies of the thermoelectrical behavior and ammonia-sensing behavior on GN@s-Pani showed high DC electrical conductivity retention under ageing conditions as well as excellent reproducible sensing response towards ammonia vapor in contrast to acid-protonated Pani. (C) 2013 Elsevier B.V. All rights reserved.
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