Tuning gas-sensing properties of reduced graphene oxide using tin oxide nanocrystals

Shun Mao; Shumao Cui; Ganhua Lu; Kehan Yu; Zhenhai Wen; Junhong Chen

doi:10.1039/C2JM30378G

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Journal of Materials Chemistry

Issue 22, 2012

Journal of Materials Chemistry was published between 1991 and 2012. From issue 1, 2013, it was replaced by three new journals: Journal of Materials Chemistry A, B and C

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Tuning gas-sensing properties of reduced graphene oxide using tin oxide nanocrystals

Shun Mao,^a Shumao Cui,^a Ganhua Lu,^a Kehan Yu,^a Zhenhai Wen^a and Junhong Chen*^a

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Corresponding authors

Department of Mechanical Engineering, University of Wisconsin-Milwaukee, 3200 N Cramer Street, Milwaukee, USA
E-mail: jhchen@uwm.edu ;
Fax: +1-414-229-6958 ;
Tel: +1-414-229-2615

J. Mater. Chem., 2012,22, 11009-11013

DOI: 10.1039/C2JM30378G
Received 18 Jan 2012, Accepted 15 Apr 2012
First published online 24 Apr 2012

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Abstract
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We report a novel and selective gas-sensing platform with reduced graphene oxide (RGO) decorated with tin oxide (SnO₂) nanocrystals (NCs). This hybrid SnO₂ NC–RGO platform showed enhanced NO₂ but weakened NH₃ sensing compared with bare RGO, showing promise in tuning the sensitivity and selectivity of RGO-based gas sensors.