Design of selective gas sensors using additive-loaded In2O3 hollow spheres prepared by combinatorial hydrothermal reactions

Sun Jung Kim; In Sung Hwang; Yun Chan Kang; Jong Heun Lee

doi:10.3390/s111110603

Design of selective gas sensors using additive-loaded In₂O₃ hollow spheres prepared by combinatorial hydrothermal reactions

Sun Jung Kim
, In Sung Hwang
, Yun Chan Kang
, Jong Heun Lee^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

64 Citations (Scopus)

Abstract

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 °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 °C, respectively. The gas responses of six different sensors to NH₃, H₂S, H₂, CO and CH₄ produced unique gas sensing patterns that can be used for the artificial recognition of these gases.

Original language	English
Pages (from-to)	10603-10614
Number of pages	12
Journal	Sensors
Volume	11
Issue number	11
DOIs	https://doi.org/10.3390/s111110603
Publication status	Published - 2011 Nov

Keywords

Combinatorial method
Gas sensor
InO hollow spheres
Pattern recognition
Selective detection

ASJC Scopus subject areas

Analytical Chemistry
Biochemistry
Atomic and Molecular Physics, and Optics
Instrumentation
Electrical and Electronic Engineering

Access to Document

10.3390/s111110603

Cite this

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title = "Design of selective gas sensors using additive-loaded In2O3 hollow spheres prepared by combinatorial hydrothermal reactions",

abstract = "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 °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 °C, respectively. The gas responses of six different sensors to NH3, H2S, H2, CO and CH4 produced unique gas sensing patterns that can be used for the artificial recognition of these gases.",

keywords = "Combinatorial method, Gas sensor, InO hollow spheres, Pattern recognition, Selective detection",

author = "Kim, \{Sun Jung\} and Hwang, \{In Sung\} and Kang, \{Yun Chan\} and Lee, \{Jong Heun\}",

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AU - Hwang, In Sung

AU - Kang, Yun Chan

AU - Lee, Jong Heun

PY - 2011/11

Y1 - 2011/11

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KW - Combinatorial method

KW - Gas sensor

KW - InO hollow spheres

KW - Pattern recognition

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