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Title: Substituted copper phthalocyanine/multiwalled carbon nanotubes hybrid material for Cl{sub 2} sensing application

In this work, hybrid of soluble copper phthalocyanine (CuPcOC{sub 8}) and functionalized multi-walled carbon nanotubes (MWCNTs) has been synthesized. The formation of CuPcOC{sub 8}-MWCNTs hybrid is confirmed by atomic force microscopy, UV-Visible and FTIR spectroscopy. Subsequently, a chemi-resistive sensor is fabricated by drop casting CuPcOC{sub 8}-MWCNTs hybrid onto glass substrate. It has been demonstrated that CuPcOC{sub 8}-MWCNTs hybrid is highly selective towards Cl{sub 2} gas with minimum detection limit of 100 ppb. The response of sensor increases linearly with increase in the concentration of Cl{sub 2} gas. For 2000 ppb of Cl{sub 2}, CuPcOC{sub 8}-MWCNTs hybrid gives a response as large as 53% in 40 seconds.
Authors:
; ; ; ;  [1] ;  [2]
  1. Material Science Laboratory, Department of Physics, Guru Nanak Dev University, Amritsar-143005 (India)
  2. Technical Physics Division, Bhabha Atomic Research Center, Mumbai-400085 (India)
Publication Date:
OSTI Identifier:
22271006
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1591; Journal Issue: 1; Conference: 58. DAE solid state physics symposium 2013, Patiala, Punjab (India), 17-21 Dec 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; ABSORPTION SPECTROSCOPY; ATOMIC FORCE MICROSCOPY; CARBON NANOTUBES; CHLORINE; CONCENTRATION RATIO; COPPER COMPLEXES; COPPER COMPOUNDS; FOURIER TRANSFORMATION; GLASS; INFRARED SPECTRA; PHTHALOCYANINES; SENSITIVITY; SENSORS; SUBSTRATES