Improvement in sensing properties of SnO 2 nanowires by functionalizing with pt nanodots synthesized by γ-ray radiolysis

Sun Woo Choi; Sung Hyun Jung; Jae Young Park; Sang Sub Kim

doi:10.1166/jnn.2012.4610

Improvement in sensing properties of SnO ₂ nanowires by functionalizing with pt nanodots synthesized by γ-ray radiolysis

Sun Woo Choi, Sung Hyun Jung, Jae Young Park, Sang Sub Kim

Inha University

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

22 Scopus citations

Abstract

Selectively-grown networked SnO ₂ nanowires were functionalized with Pt nanodots by the radiolysis process. NO ₂ sensing characteristics of Pt-functionalized SnO ₂ nanowires were compared with those of bare SnO ₂ nanowires. The results demonstrate that the Pt functionalization greatly enhances the sensitivity and response time in SnO ₂ nanowire-based gas sensors. The enhancement is likely to be associated with the spillover effect and/or easy dissociation of NO ₂ into more active chemical species by the catalytic effect of Pt.

Original language	English
Pages (from-to)	1526-1529
Number of pages	4
Journal	Journal of Nanoscience and Nanotechnology
Volume	12
Issue number	2
DOIs	https://doi.org/10.1166/jnn.2012.4610
State	Published - 2012

Keywords

γ-ray
Gas sensors
Nanowires
Pt nanodots
Radiolysis
SnO

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title = "Improvement in sensing properties of SnO 2 nanowires by functionalizing with pt nanodots synthesized by γ-ray radiolysis",

abstract = "Selectively-grown networked SnO 2 nanowires were functionalized with Pt nanodots by the radiolysis process. NO 2 sensing characteristics of Pt-functionalized SnO 2 nanowires were compared with those of bare SnO 2 nanowires. The results demonstrate that the Pt functionalization greatly enhances the sensitivity and response time in SnO 2 nanowire-based gas sensors. The enhancement is likely to be associated with the spillover effect and/or easy dissociation of NO 2 into more active chemical species by the catalytic effect of Pt.",

keywords = "γ-ray, Gas sensors, Nanowires, Pt nanodots, Radiolysis, SnO",

author = "Choi, {Sun Woo} and Jung, {Sung Hyun} and Park, {Jae Young} and Kim, {Sang Sub}",

year = "2012",

doi = "10.1166/jnn.2012.4610",

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AU - Choi, Sun Woo

AU - Jung, Sung Hyun

AU - Park, Jae Young

AU - Kim, Sang Sub

PY - 2012

Y1 - 2012

N2 - Selectively-grown networked SnO 2 nanowires were functionalized with Pt nanodots by the radiolysis process. NO 2 sensing characteristics of Pt-functionalized SnO 2 nanowires were compared with those of bare SnO 2 nanowires. The results demonstrate that the Pt functionalization greatly enhances the sensitivity and response time in SnO 2 nanowire-based gas sensors. The enhancement is likely to be associated with the spillover effect and/or easy dissociation of NO 2 into more active chemical species by the catalytic effect of Pt.

AB - Selectively-grown networked SnO 2 nanowires were functionalized with Pt nanodots by the radiolysis process. NO 2 sensing characteristics of Pt-functionalized SnO 2 nanowires were compared with those of bare SnO 2 nanowires. The results demonstrate that the Pt functionalization greatly enhances the sensitivity and response time in SnO 2 nanowire-based gas sensors. The enhancement is likely to be associated with the spillover effect and/or easy dissociation of NO 2 into more active chemical species by the catalytic effect of Pt.

KW - γ-ray

KW - Gas sensors

KW - Nanowires

KW - Pt nanodots

KW - Radiolysis

KW - SnO

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DO - 10.1166/jnn.2012.4610

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JF - Journal of Nanoscience and Nanotechnology

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ER -

Improvement in sensing properties of SnO ₂ nanowires by functionalizing with pt nanodots synthesized by γ-ray radiolysis

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