Design of Selective Gas Sensors Using Additive-Loaded In2O3 Hollow Spheres Prepared by Combinatorial Hydrothermal Reactions

被引：53

作者：

Kim, Sun-Jung ^{[1
]}

Hwang, In-Sung ^{[1
]}

Kang, Yun Chan ^{[2
]}

Lee, Jong-Heun ^{[1
]}

机构：

[1] Korea Univ, Dept Mat Sci & Engn, Seoul 136713, South Korea

[2] Konkuk Univ, Dept Chem Engn, Seoul 143701, South Korea

来源：

SENSORS | 2011年 / 11卷 / 11期

关键词：

gas sensor; In2O3 hollow spheres; combinatorial method; selective detection; pattern recognition; TEMPERATURE MODULATION; SENSING PROPERTIES; SNO2; FILMS; NANOPARTICLES;

D O I：

10.3390/s111110603

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A combinatorial hydrothermal reaction has been used to prepare pure and additive (Sb, Cu, Nb, Pd, and Ni)-loaded In2O3 hollow spheres for gas sensor applications. The operation of Pd- and Cu-loaded In2O3 sensors at 371 degrees C leads to selective H2S detection. Selective detection of CO and NH3 was achieved by the Ni-In2O3 sensor at sensing temperatures of 371 and 440 degrees C, respectively. The gas responses of six different sensors to NH3, H2S, H-2, CO and CH4 produced unique gas sensing patterns that can be used for the artificial recognition of these gases.

引用

页码：10603 / 10614

页数：12

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