High-performance NO2 sensors based on chemically modified graphene

Adv Mater. 2013 Feb 6;25(5):766-71. doi: 10.1002/adma.201203172. Epub 2012 Nov 9.

Authors

Wenjing Yuan¹, Anran Liu, Liang Huang, Chun Li, Gaoquan Shi

Affiliation

¹ Department of Chemistry, Tsinghua University, Beijing, PR China.

PMID: 23139053
DOI: 10.1002/adma.201203172

Abstract

Covalently grafting reduced graphene oxide (rGO) sheets with sulfophenyl or ethylenediamine groups can produce chemically modified graphene (CMG) for fabricating high-performance gas sensors. The NO(2) sensors based on these CMGs exhibit sensitivities 4 to 16 times higher than that of a sensor based on rGO. They also show excellent selectivity and repeatability without the aid of UV-light or thermal treatment.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Biosensing Techniques / instrumentation*
Conductometry / instrumentation*
Electrodes*
Equipment Design
Equipment Failure Analysis
Graphite / chemistry*
Nitric Oxide / analysis*

Substances

Nitric Oxide
Graphite