A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Enhanced electron transfer in composite films of reduced graphene oxide and poly(N-methylaniline)
Tekijät: Lindfors T, Österholm A, Kauppila J, Gyurcsányi RE
Julkaisuvuosi: 2013
Journal: Carbon
Tietokannassa oleva lehden nimi: Carbon
Numero sarjassa: 0
Vuosikerta: 63
Numero: 0
Aloitussivu: 588
Lopetussivu: 592
Sivujen määrä: 5
ISSN: 0008-6223
DOI: https://doi.org/10.1016/j.carbon.2013.07.022
Verkko-osoite: http://www.sciencedirect.com/science/article/pii/S0008622313006441
Tiivistelmä
Abstract Poly(N-methylaniline) (PNMA) has been electropolymerized for the first time from a graphene oxide (GO) dispersion containing 1.0 M HClO4. Both \{GO\} and perchlorate were incorporated in the \{PNMA\} matrix during the electropolymerization resulting in the formation of a mixed composite material of PNMA-ClO4 and PNMA-GO. Under the acidic polymerization conditions, the carboxylic groups of \{GO\} are undissociated and \{GO\} is therefore mostly mechanically entrapped in the \{PNMA\} matrix while perchlorate functions as the primary charge compensating ion. Electrochemical reduction at −0.85 V improved the electron transfer of the composite film due to reduction of \{GO\} in the \{PNMA\} matrix.
Abstract Poly(N-methylaniline) (PNMA) has been electropolymerized for the first time from a graphene oxide (GO) dispersion containing 1.0 M HClO4. Both \{GO\} and perchlorate were incorporated in the \{PNMA\} matrix during the electropolymerization resulting in the formation of a mixed composite material of PNMA-ClO4 and PNMA-GO. Under the acidic polymerization conditions, the carboxylic groups of \{GO\} are undissociated and \{GO\} is therefore mostly mechanically entrapped in the \{PNMA\} matrix while perchlorate functions as the primary charge compensating ion. Electrochemical reduction at −0.85 V improved the electron transfer of the composite film due to reduction of \{GO\} in the \{PNMA\} matrix.
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