Significant enhancement of the sensing characteristics of In2O3 nanowires by functionalization with Pt nanoparticles

被引：64

作者：

Kim, Sang Sub ^{[1
]}

Park, Jae Young ^{[1
]}

Choi, Sun-Woo ^{[1
]}

Kim, Hyo Sung ^{[1
]}

Na, Han Gil ^{[1
]}

Yang, Ju Chan ^{[1
]}

Kim, Hyoun Woo ^{[1
]}

机构：

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

来源：

NANOTECHNOLOGY | 2010年 / 21卷 / 41期

关键词：

LONG-TERM PERFORMANCE; OXIDE GAS SENSORS; SPRAY-PYROLYSIS; OXYGEN SENSORS; FILMS; SNO2; CATALYSTS; TEMPERATURE; ARRAYS; NO2;

D O I：

10.1088/0957-4484/21/41/415502

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We report a significant enhancement in the gas sensing properties of In2O3 nanowires by functionalizing their surfaces with Pt nanoparticles. For Pt-functionalization, In2O3-Pt core-shell nanowires are synthesized by the sputtering deposition of Pt layers on bare In2O3 nanowires. Next, continuous Pt shell layers are transformed into Pt nanoparticles of cubic phase by heat treatment. In an O-2 gas sensing test, the Pt-functionalized In2O3 nanowires reveal exceptionally higher sensitivity and faster response than bare In2O3 nanowires.

引用

页数：7