Liquefied petroleum gas sensing performance of cerium doped copper ferrite

被引：32
作者：
Khandekar, M. S. [1 ]
Tarwal, N. L. [2 ,3 ]
Patil, J. Y. [1 ]
Shaikh, F. I. [1 ]
Mulla, I. S. [4 ]
Suryavanshi, S. S. [1 ]
机构：
[1] Solapur Univ, Dept Phys, Ferrite Mat Lab, Solapur, India
[2] GIST, Res Inst Solar & Sustainable Energies RISE, Kwangju 500712, South Korea
[3] GIST, Sch Informat & Commun, Kwangju 500712, South Korea
[4] Natl Chem Lab, Phys Chem Div, Pune 411008, Maharashtra, India
来源：
CERAMICS INTERNATIONAL | 2013年 / 39卷 / 05期
关键词：
Ferrite; Molten-salt method; TEM; Gas sensor; CUFE2O4; NANOPARTICLES; ROOM-TEMPERATURE; ZINC FERRITE; SENSOR; COPRECIPITATION; CD;
D O I：
10.1016/j.ceramint.2013.01.010
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：
Undoped and cerium (Ce) doped nanocrystalline copper ferrite (CuFe2O4) materials were synthesized via the molten-salt (M-S) method. Effects of Ce doping on the structural, morphological and gas sensing properties of the CuFe2O4 ferrite have been investigated. X-ray diffraction (XRD) analysis revealed the formation of spinel CuFe2O4. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) investigations showed that the synthesized ferrite is made up of very fine spherical nanoparticles. Moreover, the gas sensing properties of sintered samples were studied towards different reducing gases such as liquefied petroleum gas (LPG), acetone, ethanol and ammonia. The sample with 4% cerium doped CuFe2O4 (Ce4) showed the maximum gas sensitivity (86%) towards LPG with fast response time of 5 s and good recovery time of 68 s. (C) 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
引用
收藏
页码：5901 / 5907
页数：7
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