Preparation and LPG-gas sensing characteristics of p-type semiconducting LaNbO4 ceramic material

被引：35
|
作者：
Balamurugan, C. [1 ,2 ]
Lee, D. -W. [1 ,2 ]
Subramania, A. [3 ]
机构：
[1] Chonnam Natl Univ, MEMS, Kwangju 500757, South Korea
[2] Chonnam Natl Univ, Sch Mech Syst Engn, Nanotechnol Lab, Kwangju 500757, South Korea
[3] Pondicherry Univ, Ctr Nanosci & Technol, Pondicherry 605014, India
来源：
APPLIED SURFACE SCIENCE | 2013年 / 283卷
基金：
新加坡国家研究基金会;
关键词：
LaNbO4; Nanopowder; LPG sensor; p-type semiconducting gas sensor; POWDER; BEHAVIOR; FILMS;
D O I：
10.1016/j.apsusc.2013.06.013
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Lanthanam niobate (LaNbO4) nanopowder was synthesized by a low temperature solution-based process. Thermal analysis TG/DTA, XRD, SEM, TEM, EDX, impedance analysis and Brunauer-Emmett-Teller (BET) were used to characterize the precursor and the calcined LaNbO4 powders. The gas sensing behavior of LaNbO4 nanopowder was studied with gases like liquid petroleum gas (LPG), ammonia (NH3), and ethanol (C2H5OH), as a function of various controlling factors like operating temperature, concentration of the gas and response time. It revealed that LaNbO4 is a very promising material for the detection of LPG (80%) and NH3 (59%) at relatively lower operating temperatures. (c) 2013 Published by Elsevier B.V.
引用
收藏
页码：58 / 64
页数：7
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