期刊
RSC Advances
卷 5, 期 111, 页码 91855-91862出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ra18697h
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资金
- Scientific and Technological Research Council of Turkey (TUBITAK) [111M699]
- Russian Foundation of Basic Researches (RFBR) [12-03-91372-CT_a]
- Russian Scientific Foundation [15-13-10014]
- Russian Science Foundation [15-13-10014] Funding Source: Russian Science Foundation
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 pi-pi 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).
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