Highly sensitive triethylamine gas sensor by Pt-loaded p–n heterojunction Co3O4/WO3

Author:

Song Zhenlin,Zeng Jiyang,Zi Baoye,Chen Fengying,Zhang Yumin,Zhang Genlin,Zhu Zhongqi,Zhang Jin,Liu QingjuORCID

Abstract

Abstract Triethylamine (TEA) exists widely in production and life and is extremely volatile, which seriously endangers human health. It is required to develop high-performance TEA sensors to protect human health. We fabricated Pt-Co3O4/WO3 based on our previous work, and the performance was tested against volatile organic compounds. Compared with the previous work, its operating temperature was greatly reduced from 240 °C to 180 °C. The response value of Pt-Co3O4/WO3 was increased from 1101 to 1532 for 10 ppm TEA with good selectivity. These results show a significant step toward practical use of the Pt-Co3O4/WO3 sensor.

Funder

National Natural Science Foundation of China

Publisher

IOP Publishing

Subject

Electrical and Electronic Engineering,Mechanical Engineering,Mechanics of Materials,General Materials Science,General Chemistry,Bioengineering

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