Hydrogen sensing properties and mechanism of NiO-Nb2O5 composite nanoparticle-based electrical gas sensors

被引：56

作者：

Mirzaei, Ali ^{[1
]}

Sun, Gun-Joo ^{[2
]}

Lee, Jae Kyung ^{[2
]}

Lee, Chongmu ^{[2
]}

Choi, Seungbok ^{[3
]}

Kim, Hyoun Woo ^{[4
]}

机构：

[1] Shiraz Univ, Dept Engn Mat Engn, Shiraz, Iran

[2] Inha Univ, Dept Mat Sci & Engn, 253 Yonghyun Dong, Incheon 402751, South Korea

[3] Inha Univ, Dept Mech Engn, 253 Yonghyun Dong, Incheon 402751, South Korea

[4] Hanyang Univ, Div Mat Sci & Engn, Seoul 133791, South Korea

来源：

CERAMICS INTERNATIONAL | 2017年 / 43卷 / 06期

基金：

新加坡国家研究基金会;

关键词：

Sensors; Nanocomposites; Oxide semiconductors; Sol-gel processes; THIN-FILMS; SELECTIVE H-2; PERFORMANCE; NANOWIRES; FABRICATION; SURFACE;

D O I：

10.1016/j.ceramint.2017.01.050

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A simple hydrothermal method was used to prepare NiO-Nb2O5 composite nanoparticle electrical sensors for the detection of hydrogen (H-2) at room temperature. To investigate the morphology and crystal structure of the synthesized powders, the synthesized nanoparticles were characterized by scanning electron microscopy and X-ray diffraction. The NiO-Nb2O5 composite nanoparticle sensor showed stronger and faster response to H-2 than the pristine Nb2O5 one at room temperature. Only weak responses were observed to carbon monoxide, methane and ethanol, indicating that the NiO-Nb2O5 composite nanoparticle sensor could be a potential candidate as a practical gas detector. In this study, the H-2 sensing properties and mechanism of NiO-Nb2O5 composite nanoparticle-based electrical gas sensors are discussed in detail.

引用

页码：5247 / 5254

页数：8

共 34 条

[1] Optical Gas Sensing Properties of Nanoporous Nb2O5 Films [J].