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Fabrication of 3D Graphene and 3D Graphene Oxide Devices for Sensing VOCs

Published online by Cambridge University Press:  24 February 2016

So Matsuyama ,
Tomoaki Sugiyama ,
Toshiyuki Ikoma  and
Jeffrey S. Cross
So Matsuyama*
Affiliation:
Department of Metallurgy and Ceramics Science, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
Tomoaki Sugiyama
Affiliation:
Department of Metallurgy and Ceramics Science, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
Toshiyuki Ikoma
Affiliation:
Department of Metallurgy and Ceramics Science, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
Jeffrey S. Cross
Affiliation:
Department of Metallurgy and Ceramics Science, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
*
*(Email: [email protected])
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Abstract

Detection of volatile organic compounds (VOCs) emitted from cancerous tumor cells in exhaled human breath allows for early diagnosis of various types of cancers. 3D graphene with a large surface area is considered a suitable material for creating novel sensitive VOCs sensors. In this study, 3D graphene and 3D graphene oxide were synthesized from graphene oxide suspension, hydroquinone and formaldehyde by employing polymerization and reduction. The capability of VOC gas sensing was evaluated by measuring the electrical current response in flowing N2 gas over a range of concentrations of acetone or 1-butanol at room temperature. It was observed that the device current correlated well with the VOC concentration. The adsorption of acetone decreased the current, but the adsorption of 1-butanol increased the current during sensing. 3D graphene oxide device was more sensitive than 3D graphene device because of the high concentration of oxygen-containing functional groups on the surface. These results indicated that 3D graphene and 3D graphene oxide may be the suitable materials for VOCs sensing devices.

Keywords

Csensordevices
Type
Articles
Information
MRS Advances , Volume 1 , Issue 19: Nanomaterials and Synthesis , 2016 , pp. 1359 - 1364
Copyright
Copyright © Materials Research Society 2016 

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