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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
Graphene/polyaniline nanocomposite for hydrogen sensing
Journal of Physical Chemistry C, Volume 114, No. 39, Year 2010
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Description
Here we report on the synthesis of a graphene/polyaniline (PANI) nanocomposite and its application in the development of a hydrogen (H 2) gas sensor. Using a chemical synthetic route, graphene was prepared and ultrasonicated with a mixture of aniline monomer and ammonium persulfate to form PANI on its surface. The developed material was characterized by scanning electron microscopy (SEM), transmission electron microscopy, Raman spectroscopy, and X-ray photoemission spectroscopy. The SEM study revealed that the PANI in the composite has a nanofibrillar morphology. We investigated the H2 gas sensing performance of this material and compare it with that of the sensors based on only graphene sheets and PANI nanofibers. We found that the graphene/PANI nanocomposite-based device sensitivity is 16.57% toward 1% of H2 gas, which is much larger than the sensitivities of sensors based on only graphene sheets and PANI nanofibers. © 2010 American Chemical Society.
Authors & Co-Authors
Du Plessis, Johan
United States, Los Angeles
University of California, Los Angeles
Kaner, Richard B.
United States, Los Angeles
California Nanosystems Institute
Ippolito, Samuel J.
United States, Los Angeles
University of California, Los Angeles
Statistics
Citations: 444
Authors: 3
Affiliations: 5
Identifiers
Doi:
10.1021/jp103134u
ISSN:
19327455