Graphene/Polyaniline Nanocomposite for Hydrogen Sensing

被引：399

作者：

Al-Mashat, Laith ^{[1
]}

Shin, Koo ^{[2
]}

Kalantar-zadeh, Kourosh ^{[1
]}

Plessis, Johan D. ^{[3
]}

Han, Seung H. ^{[2
]}

Kojima, Robert W. ^{[4
,5
]}

Kaner, Richard B. ^{[4
,5
]}

Li, Dan ^{[6
]}

Gou, Xinglong ^{[6
]}

Ippolito, Samuel J. ^{[3
]}

Wlodarski, Wojtek ^{[1
]}

机构：

[1] RMIT Univ, Sch Elect & Comp Engn, Melbourne, Vic 3001, Australia

[2] Sejong Univ, Dept Appl Chem, Seoul 143747, South Korea

[3] RMIT Univ, Sch Appl Sci, Melbourne, Vic 3001, Australia

[4] Univ Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA

[5] Univ Calif Los Angeles, Calif NanoSyst Inst, Los Angeles, CA 90095 USA

[6] Monash Univ, Dept Mat Engn, Clayton, Vic 3800, Australia

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2010年 / 114卷 / 39期

关键词：

FEW-LAYER GRAPHENE; WAVE GAS SENSORS; RAMAN-SPECTROSCOPY; POLYANILINE NANOFIBERS; SINGLE-LAYER; LARGE-AREA; FILMS; CARBON; CONDUCTIVITY; ELECTRODES;

D O I：

10.1021/jp103134u

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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 H(2) 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 H(2) gas, which is much larger than the sensitivities of sensors based on only graphene sheets and PANI nanofibers.

引用

页码：16168 / 16173

页数：6

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