A highly sensitive and fast-responding ethanol sensor based on CdIn 2O4 nanocrystals synthesized by a nonaqueous sol-gel route

Minhua Cao; Yude Wang; Ting Chen; Markus Antonietti; Markus Niederberger

doi:10.1021/cm800794y

A highly sensitive and fast-responding ethanol sensor based on CdIn ₂O₄ nanocrystals synthesized by a nonaqueous sol-gel route

Minhua Cao^*, Yude Wang, Ting Chen, Markus Antonietti, Markus Niederberger

^*Corresponding author for this work

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

95 Citations (Scopus)

Abstract

CdIn₂O₄ nanoparticles with crystallite sizes of about 10 nm were obtained by a nonaqueous sol-gel route involving the reaction of cadmium acetate and indium isopropoxide in benzyl alcohol. Without the use of any additional stabilizing agents, the crystal growth is restricted by the solvent and/or by the organic reaction products. The as-fabricated sensor showed high response, fast response, and recovery times toward ethanol gas. The performance of a home-built CdIn₂O₄ nanocrystal sensor was even better than the competing SnO₂ and In₂O₃ sensors, making this material not only interesting for sensor devices, but also for a number of related electrochemical applications.

Original language	English
Pages (from-to)	5781-5786
Number of pages	6
Journal	Chemistry of Materials
Volume	20
Issue number	18
DOIs	https://doi.org/10.1021/cm800794y
Publication status	Published - 23 Sept 2008
Externally published	Yes

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abstract = "CdIn2O4 nanoparticles with crystallite sizes of about 10 nm were obtained by a nonaqueous sol-gel route involving the reaction of cadmium acetate and indium isopropoxide in benzyl alcohol. Without the use of any additional stabilizing agents, the crystal growth is restricted by the solvent and/or by the organic reaction products. The as-fabricated sensor showed high response, fast response, and recovery times toward ethanol gas. The performance of a home-built CdIn2O4 nanocrystal sensor was even better than the competing SnO2 and In2O3 sensors, making this material not only interesting for sensor devices, but also for a number of related electrochemical applications.",

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AU - Cao, Minhua

AU - Wang, Yude

AU - Chen, Ting

AU - Antonietti, Markus

AU - Niederberger, Markus

PY - 2008/9/23

Y1 - 2008/9/23

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AB - CdIn2O4 nanoparticles with crystallite sizes of about 10 nm were obtained by a nonaqueous sol-gel route involving the reaction of cadmium acetate and indium isopropoxide in benzyl alcohol. Without the use of any additional stabilizing agents, the crystal growth is restricted by the solvent and/or by the organic reaction products. The as-fabricated sensor showed high response, fast response, and recovery times toward ethanol gas. The performance of a home-built CdIn2O4 nanocrystal sensor was even better than the competing SnO2 and In2O3 sensors, making this material not only interesting for sensor devices, but also for a number of related electrochemical applications.

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A highly sensitive and fast-responding ethanol sensor based on CdIn ₂O₄ nanocrystals synthesized by a nonaqueous sol-gel route

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