Design of Selective Gas Sensors Using Additive-Loaded In2O3 Hollow Spheres Prepared by Combinatorial Hydrothermal Reactions
- Authors
- Kim, Sun-Jung; Hwang, In-Sung; Kang, Yun Chan; Lee, Jong-Heun
- Issue Date
- 11월-2011
- Publisher
- MDPI
- Keywords
- gas sensor; In2O3 hollow spheres; combinatorial method; selective detection; pattern recognition
- Citation
- SENSORS, v.11, no.11, pp.10603 - 10614
- Indexed
- SCIE
SCOPUS
- Journal Title
- SENSORS
- Volume
- 11
- Number
- 11
- Start Page
- 10603
- End Page
- 10614
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/111261
- DOI
- 10.3390/s111110603
- ISSN
- 1424-8220
- 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 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.
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Collections - College of Engineering > Department of Materials Science and Engineering > 1. Journal Articles
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