Improvement in Sensing Properties of SnO2 Nanowires by Functionalizing with Pt Nanodots Synthesized by γ-Ray Radiolysis

被引：22

作者：

Choi, Sun-Woo ^{[1
]}

Jung, Sung-Hyun ^{[1
]}

Park, Jae Young ^{[1
]}

Kim, Sang Sub ^{[1
]}

机构：

[1] Inha Univ, Sch Mat Sci & Engn, Inchon 402751, South Korea

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2012年 / 12卷 / 02期

关键词：

Pt Nanodots; gamma-Ray; Radiolysis; SnO2; Nanowires; Gas sensors;

D O I：

10.1166/jnn.2012.4610

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Selectively-grown networked SnO2 nanowires were functionalized with Pt nanodots by the radiolysis process. NO2 sensing characteristics of Pt-functionalized SnO2 nanowires were compared with those of bare SnO2 nanowires. The results demonstrate that the Pt functionalization greatly enhances the sensitivity and response time in SnO2 nanowire-based gas sensors. The enhancement is likely to be associated with the spillover effect and/or easy dissociation of NO2 into more active chemical species by the catalytic effect of Pt.

引用

页码：1526 / 1529

页数：4

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