NO2 gas sensor based on polyvinylpyrrolidone/reduced graphene oxide nanocomposite

Author

Junlong Huang ; Guangzhong Xie ; Yong Zhou ; Tao Xie ; Guangjin Yang

Author_Institution

Sch. of Optoelectron. Inf., Univ. of Electron. Sci. & Technol. of China (UESTC), Chengdu, China

fYear

2014

fDate

29-30 Sept. 2014

Firstpage

1059

Lastpage

1063

Abstract

Pure polyvinylpyrrolidone (PVP) film, reduced graphene oxide (RGO) film and PVP/RGO composite film were coated on quartz crystal microbalance (QCM) for nitrogen oxide (NO₂) sensing at room temperature. These films were characterized by Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM), respectively. Because only a few RGO were deposited on QCM, the sensor based on RGO almost had no response to NO₂. In addition, compared with the response of pure PVP film, an increase in the response of PVP/RGO composite film may be caused by the more absorption area for NO₂ molecule adsorption.

Keywords

Fourier transform spectra; absorption; coatings; filled polymers; gas sensors; graphene; infrared spectra; microsensors; nanocomposites; nanosensors; nitrogen compounds; polymer films; quartz crystal microbalances; scanning electron microscopy; thin film sensors; CO; FTIR; Fourier transform infrared spectroscopy; NO₂; PVP-RGO composite film; QCM; SEM; coating; gas sensor; molecule absorption; polyvinylpyrrolidone-reduced graphene oxide nanocomposite; quartz crystal microbalance; scanning electron microscopy; temperature 293 K to 298 K; Actuators; Films; Gas detectors; Graphene; Scanning electron microscopy; Temperature sensors; NO2 gas sensor; Polyvinylpyrrolidone; reduced graphene oxide;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Research and Technology in Industry Applications (WARTIA), 2014 IEEE Workshop on

Conference_Location

Ottawa, ON

Type

conf

DOI

10.1109/WARTIA.2014.6976459

Filename

6976459