Indexed by:
期刊论文
First Author:
Wang, X.
Correspondence Author:
Li, X (reprint author), Dalian Univ Technol, Key Lab Liaoning Integrated Circuits Technol, Inst Sensing Technol, Sch Elect Sci & Technol, Dalian 116024, Peoples R China.
Co-author:
Li, X.,Zhao, Y.,Chen, Y.,Yu, J.,Wang, J.
Date of Publication:
2016-01-01
Journal:
RSC ADVANCES
Included Journals:
SCIE、EI
Document Type:
J
Volume:
6
Issue:
57
Page Number:
52339-52346
ISSN No.:
2046-2069
Abstract:
Three methods were used to prepare reduced graphene oxide (rGO) with various ratios of oxygen functional groups, such as -OOH, -OH and C=O, to study their effects on the NO2 sensing properties at room temperature. It was found that the percentages of oxygen-containing species such as -OH in the rGO nanosheet, significantly affected the sensitivity of rGO to NO2 at room temperature. The -OH species can promote the sensitivity and also the recovery ability with respect to NO2. This may be because -OH has a greater attraction to NO2 and obtains electrons from it, whereas the separation of NO2 from -OH is also slightly easier, enabling a better recovery compared to other oxygen functional groups such as -OOH and C=O.
Translation or Not:
no
