High Sensitivity and Selectivity of C-Doped WO3 Gas Sensors Toward Toluene and Xylene

被引：49

作者：

Deng, Lubin ^{[1
]}

Ding, Xiaohu ^{[1
]}

Zeng, Dawen ^{[1
]}

Zhang, Shunping ^{[2
]}

Xie, Changsheng ^{[2
]}

机构：

[1] Huazhong Univ Sci & Technol, State Key Lab Mat Proc & Die & Mould Technol, Wuhan 430074, Peoples R China

[2] Huazhong Univ Sci & Technol, Dept Mat Sci & Engn, Nanomat & Smart Sensors Labs, Wuhan 430074, Peoples R China

来源：

IEEE SENSORS JOURNAL | 2012年 / 12卷 / 06期

关键词：

C-doped WO3; selectivity; toluene; xylene; VOLATILE ORGANIC-COMPOUNDS; SENSING CHARACTERISTICS; CARBON; FILMS; MECHANISM; AU;

D O I：

10.1109/JSEN.2011.2179980

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

High sensitivity and selectivity of C-doped WO3 gas sensors are reported in this paper. C-doped WO3 is synthesized by a facile infiltration and calcination process using the cotton fibers as templates. The response of C-doped WO3 sensor toward toluene (50 ppm) and xylene (50 ppm) reach 91 and 199, respectively. By comparing the response of C-doped WO3 sensor toward various indoor noxious gases (toluene, formaldehyde, ethanol, methane, benzene, and xylene), distinctive selectivity toward toluene and xylene is found. In addition, C-doped WO3 exhibits relative hygro-stability, differing from traditional gas sensor material. The results indicate that C-doped WO3 has good potential in practical applications, due to its remarkable performance and facile synthesized methods.

引用

页码：2209 / 2214

页数：6

共 30 条

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