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

KAYA, Esra Nur, BASOVA, Tamara, POLYAKOV, Maxim, DURMUŞ, Mahmut, KADEM, Burak and HASSAN, Aseel (2015). Hybrid materials of pyrene substituted phthalocyanines with single-walled carbon nanotubes: structure and sensing properties. RSC Advances, 5 (111), 91855-91862.

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Abstract

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).

Item Type:	Article
Additional Information:	** From Crossref via Jisc Publications Router.
Uncontrolled Keywords:	General Chemistry, General Chemical Engineering
Research Institute, Centre or Group - Does NOT include content added after October 2018:	Materials and Engineering Research Institute > Advanced Coatings and Composites Research Centre > Electronic Materials and Sensors Research Group
Identification Number:	https://doi.org/10.1039/c5ra18697h
Page Range:	91855-91862
SWORD Depositor:	Hilary Ridgway
Depositing User:	Hilary Ridgway
Date Deposited:	30 Nov 2017 16:06
Last Modified:	18 Mar 2021 16:18
URI:	https://shura.shu.ac.uk/id/eprint/17409

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