Ammonia gas sensor based on a spinel semiconductor, Co0.8Ni0.2Fe2O4 nanomaterial

被引：40

作者：

Gedam, N. N. ^{[1
]}

Padole, P. R. ^{[1
]}

Rithe, S. K. ^{[1
]}

Chaudhari, G. N. ^{[1
]}

机构：

[1] Shri Shivaji Sci Coll, Dept Chem, Nano Technol Res Lab, Amravati 444602, Maharashtra, India

来源：

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 2009年 / 50卷 / 03期

关键词：

Co1-xNixFe2O4; Gas sensor; Pd incorporation; Stability; TEMPERATURE; SENSITIVITY; OXIDES;

D O I：

10.1007/s10971-009-1942-1

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：

Thick film of nanocrystalline Co0.8Ni0.2Fe2O4 was obtained by sol-gel citrate method for gas sensing application. The synthesized powder was characterized by X-ray diffraction (XRD) and transmission electron microscopy. The XRD pattern shows spinel type structure of Co0.8Ni0.2Fe2O4. XRD of Co0.8Ni0.2Fe2O4 revels formation of solid solution with average grain size of about 30 nm. From gas sensing properties it observed that nickel doping improves the sensor response and selectivity towards ammonia gas and very low response to LPG, CO, and H2S at 280 A degrees C. Furthermore, incorporation of Pd improves the sensor response and stability of ammonia gas and reduced the operating temperature upto 210 A degrees C. The sensor is a promising candidate for practical detector of ammonia.

引用

页码：296 / 300

页数：5

共 20 条

[1] Characterization of ozone sensors based on WO3 reactively sputtered films:: influence O2 concentration in the sputtering gas and working temperature [J].

Bendahan, M ;

Boulmani, R ;

Seguin, JL ;

Aguir, K .

SENSORS AND ACTUATORS B-CHEMICAL, 2004, 100 (03) :320-324

[2]

BRUNO L, 1994, SENSOR ACTUAT B-CHEM, V195, P18

[3] Spindly cobalt ferrite nanocrystals: Preparation, characterization and magnetic properties [J].

Cao, XB ;

Gu, L .

NANOTECHNOLOGY, 2005, 16 (02) :180-185

[4] Coordination compounds containing urea as precursors for oxides -: A new route of obtaining nanosized CoFe2O4 [J].

Carp, O. ;

Patron, L. ;

Reller, A. .

MATERIALS CHEMISTRY AND PHYSICS, 2007, 101 (01) :142-147

[5] The effects of thickness and operation temperature on ZnO:Al thin film CO gas sensor [J].

Chang, JF ;

Kuo, HH ;

Leu, IC ;

Hon, MH .

SENSORS AND ACTUATORS B-CHEMICAL, 2002, 84 (2-3) :258-264

[6] THE ROLE OF ADDITIVES IN TIN DIOXIDE-BASED GAS SENSORS [J].

CHEONG, HW ;

CHOI, JJ ;

KIM, HP ;

KIM, JM ;

CHURN, GS .

SENSORS AND ACTUATORS B-CHEMICAL, 1992, 9 (03) :227-231

[7] Ethanol gas sensor based on CoFe2O4 nano-crystallines prepared by hydrothermal method [J].

Chu Xiangfeng ;

Jiang Dongli ;

Yu, Guo ;

Zheng Chenmou .

SENSORS AND ACTUATORS B-CHEMICAL, 2006, 120 (01) :177-181

[8] SURFACE-CHEMISTRY OF TIN OXIDE-BASED GAS SENSORS [J].

GAGGIOTTI, G ;

GALDIKAS, A ;

KACIULIS, S ;

MATTOGNO, G ;

SETKUS, A .

JOURNAL OF APPLIED PHYSICS, 1994, 76 (08) :4467-4471

[9]

GOPAL RCV, 1999, SENSOR ACTUAT B-CHEM, V55, P90

[10] Electronic nose and artificial neural network [J].

Haugen, JE ;

Kvaal, K .

MEAT SCIENCE, 1998, 49 :S273-S286

← 1 2 →