Synthesis and Gas Sensing Properties of Au@In2O3 Core-shell Nanoparticles

Yeon Tae Yu; Sanjit Manohar Majhi; Ho Geun Song

doi:10.1016/j.proeng.2016.11.168

Synthesis and Gas Sensing Properties of Au@In₂O₃ Core-shell Nanoparticles

Yeon Tae Yu^*
, Sanjit Manohar Majhi
, Ho Geun Song

^*Corresponding author for this work

Information Materials Engineering

Research output: Contribution to journal › Conference article › peer-review

17 Scopus citations

Abstract

The interest in hybrid nanoparticles (NPs) arises from their combined and often synergetic properties exceeding the functionality of the individual components. Herein, a general, environmentally friendly, and facile hydrothermal approach to synthesize the metal-semiconductor, Au@In₂O₃ core-shell heteronanostructures is described. These Au@In₂O₃ core-shell NPs are used as chemiresistive gas sensors for the detection of gases such H₂, CO, NO₂, VOCs in air. Sensor device based on Au@In₂O₃ core-shell NPs showed greater response than that of In₂O₃ NPs sensor device. The enhanced activity can be attributed to the catalytic effect of Au, and synergistic interactions between the Au and In₂O₃ NPs formed into the core-shell heteronanostructures in such a way that favors the efficient electron transfer at the interface.

Original language	English
Pages (from-to)	227-230
Number of pages	4
Journal	Procedia Engineering
Volume	168
DOIs	https://doi.org/10.1016/j.proeng.2016.11.168
State	Published - 2016
Event	30th Eurosensors Conference, Eurosensors 2016 - Budapest, Hungary Duration: 2016.09.4 → 2016.09.7

Keywords

Au@In2O3
core-shell nanoparticles
Gas sensor

Quacquarelli Symonds(QS) Subject Topics

Engineering & Technology

Access to Document

10.1016/j.proeng.2016.11.168

Cite this

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title = "Synthesis and Gas Sensing Properties of Au@In2O3 Core-shell Nanoparticles",

abstract = "The interest in hybrid nanoparticles (NPs) arises from their combined and often synergetic properties exceeding the functionality of the individual components. Herein, a general, environmentally friendly, and facile hydrothermal approach to synthesize the metal-semiconductor, Au@In2O3 core-shell heteronanostructures is described. These Au@In2O3 core-shell NPs are used as chemiresistive gas sensors for the detection of gases such H2, CO, NO2, VOCs in air. Sensor device based on Au@In2O3 core-shell NPs showed greater response than that of In2O3 NPs sensor device. The enhanced activity can be attributed to the catalytic effect of Au, and synergistic interactions between the Au and In2O3 NPs formed into the core-shell heteronanostructures in such a way that favors the efficient electron transfer at the interface.",

keywords = "Au@In2O3, core-shell nanoparticles, Gas sensor",

author = "Yu, \{Yeon Tae\} and Majhi, \{Sanjit Manohar\} and Song, \{Ho Geun\}",

note = "Publisher Copyright: {\textcopyright} 2016 The Authors.; 30th Eurosensors Conference, Eurosensors 2016 ; Conference date: 04-09-2016 Through 07-09-2016",

year = "2016",

doi = "10.1016/j.proeng.2016.11.168",

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AU - Yu, Yeon Tae

AU - Majhi, Sanjit Manohar

AU - Song, Ho Geun

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N2 - The interest in hybrid nanoparticles (NPs) arises from their combined and often synergetic properties exceeding the functionality of the individual components. Herein, a general, environmentally friendly, and facile hydrothermal approach to synthesize the metal-semiconductor, Au@In2O3 core-shell heteronanostructures is described. These Au@In2O3 core-shell NPs are used as chemiresistive gas sensors for the detection of gases such H2, CO, NO2, VOCs in air. Sensor device based on Au@In2O3 core-shell NPs showed greater response than that of In2O3 NPs sensor device. The enhanced activity can be attributed to the catalytic effect of Au, and synergistic interactions between the Au and In2O3 NPs formed into the core-shell heteronanostructures in such a way that favors the efficient electron transfer at the interface.

AB - The interest in hybrid nanoparticles (NPs) arises from their combined and often synergetic properties exceeding the functionality of the individual components. Herein, a general, environmentally friendly, and facile hydrothermal approach to synthesize the metal-semiconductor, Au@In2O3 core-shell heteronanostructures is described. These Au@In2O3 core-shell NPs are used as chemiresistive gas sensors for the detection of gases such H2, CO, NO2, VOCs in air. Sensor device based on Au@In2O3 core-shell NPs showed greater response than that of In2O3 NPs sensor device. The enhanced activity can be attributed to the catalytic effect of Au, and synergistic interactions between the Au and In2O3 NPs formed into the core-shell heteronanostructures in such a way that favors the efficient electron transfer at the interface.

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