Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 193, Issue -, Pages 340-348Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2013.11.090
Keywords
Copper phthalocyanine; Reduced graphene oxide; Hybrid; Ammonia; Gas sensor
Funding
- National Natural Science Foundation of China [51202061, 51002046]
- Foundation of Education Department of Heilongjiang Province [12511377, 12521399]
- Special fundation of Harbin technological innovation talent [2012RFLXG031]
- Opening Project Foundation of Key Laboratory of Functional Inorganic Material Chemistry (Heilongjiang University), Ministry of Education
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A novel hybrid material composed of reduced graphene oxide (RGO) and 1,8,15,22-tetra-isopentyloxyphthalocyanine copper (3-CuPc) derivative was obtained. The resultant RGO/3-CuPc hybrid was characterized by Fourier transform infrared, Ultraviolet-visible, X-ray photoelectron and Raman spectroscopy, transmission electron microscopy and scan electron microscopy. The results indicated that 3-CuPc molecules were successfully anchored on the surface of the RGO sheets by the pi-pi stacking interaction. The NH3 sensing behaviors of the RGO/3-CuPc hybrids were also investigated and compared with the sensors based on pristine RGO. The results showed that the response of the RGO/3-CuPc hybrid sensor is five times more sensitive than that of pristine RGO, and the recovery time is 10 times faster than that of pristine RGO. The RGO/3-CuPc hybrid sensor exhibited excellent response, reversibility and selectivity, indicating a remarkable accumulation effect as a result of 3-CuPc functionalized graphene. An innovative method for the application of RGO/MPc hybrids in the gas sensing field was provided. (C) 2013 Elsevier B.V. All rights reserved.
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