Hybrid materials of pyrene substituted phthalocyanines with single-walled carbon nanotubes: structure and sensing properties

Esra Nur Kaya, Tamara Basova, Maxim Polyakov, Mahmut Durmuş, Burak Kadem, Aseel Hassan

Результат исследования: Научные публикации в периодических изданияхстатья

23 Цитирования (Scopus)

Аннотация

Hybrid materials of single walled carbon nanotubes (SWCNT) were obtained by their non-covalent functionalization with asymmetrically polyoxyethylene substituted phthalocyanines (MPc-py (M = Cu, Co, 2H)) bearing one pyrene group as a substituent. The attachment of MPc-py molecules onto the SWCNT surface have been confirmed using Raman spectroscopy, SEM, TEM and thermogravimetric analysis. The pyrene substituents were introduced to the phthalocyanine macrocycle in order to improve π-π interaction between the MPc-py and SWCNT. The effect of the central metal on the formation and sensor properties of the MPc-py within the hybrids has been verified. It has been shown that the electrical response of the hybrid films to ammonia vapor in the concentration range of 10-50 ppm changes in the following order CuPc-py > CoPc-py > H2Pc-py, which was found to be in good correlation with the amount of phthalocyanine molecules adsorbed onto the SWCNT walls, as estimated by thermogravimetric analysis (TGA).

Язык оригиналаанглийский
Страницы (с-по)91855-91862
Число страниц8
ЖурналRSC Advances
Том5
Номер выпуска111
DOI
СостояниеОпубликовано - 20 окт 2015

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