EFFECT OF CeO2 DOPING ON THE STRUCTURE, ELECTRICAL CONDUCTIVITY AND ETHANOL GAS SENSING PROPERTIES OF NANOCRYSTALLINE ZnO SENSORS

被引：8

作者：

El-Sayed, A. M. ^{[1
]}

Ismail, F. M. ^{[1
]}

Khder, M. H. ^{[2
]}

Hassouna, M. E. M. ^{[2
]}

Yakout, S. M. ^{[1
]}

机构：

[1] Natl Res Ctr, Dept Inorgan Chem, Tahrir St, Cairo 12622, Egypt

[2] Beni Sueif Univ, Dept Chem, Fac Sci, Bani Suwayf, Egypt

来源：

INTERNATIONAL JOURNAL ON SMART SENSING AND INTELLIGENT SYSTEMS | 2012年 / 5卷 / 03期

关键词：

ZnO nanoparticles; Ce-doping; ethanol gas sensor;

D O I：

10.21307/ijssis-2017-498

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Nanocrystalline sensors having the general formula ZnO + x wt% CeO2, where x = 0, 2, 4 and 6 were prepared by chemical precipitation method and sintered at 400, 600 and 800 C-circle for 2h in static air atmosphere. The crystal structure and the morphology of the prepared samples were investigated and characterized by using XRD, IR, SEM and TEM techniques. The investigation revealed that the average crystallites size increases with increasing the sintering temperature. The electrical conductivity is found to increase with CeO2 additions and sintering temperature. Gas sensing properties of the prepared samples were also investigated. The effect of CeO2 content and sintering temperature on the structure, electrical conductivity and ethanol gas sensing properties of the prepared samples are discussed.

引用

页码：606 / 623

页数：18

共 31 条

[1] Zinc oxide nanobelts by RF sputtering for ethanol sensor [J].

Choopun, Supab ;

Hongsith, Niyom ;

Mangkorntong, Pongsri ;

Mangkorntong, Nikorn .

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2007, 39 (01) :53-56

[2] Highly sensitive mixed oxide sensors for the detection of ethanol [J].

Costello, BPJD ;

Ewen, RJ ;

Guernion, N ;

Ratcliffe, NM .

SENSORS AND ACTUATORS B-CHEMICAL, 2002, 87 (01) :207-210

[3]

Dighavkar C G, 2010, SENSORS TRANSDUCERS, V116, P28

[4] Preparation, characterization and infrared emissivity study of Ce-doped ZnO films [J].

Du Fangli ;

Wang Ning ;

Zhang Dongmei ;

Shen Yingzhong .

JOURNAL OF RARE EARTHS, 2010, 28 (03) :391-395

[5] Structural characteristics and UV-light enhanced gas sensitivity of La-doped ZnO nanoparticles [J].

Ge, Chunqiao ;

Xie, Changsheng ;

Hu, Mulin ;

Gui, Yanghai ;

Bai, Zikui ;

Zeng, Dawen .

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 2007, 141 (1-2) :43-48

[6] Enhanced LPG response characteristics of SnO2 thin film based sensors loaded with Pt clusters [J].

Haridas, Divya ;

Chowdhuri, Arijit ;

Sreenivas, K. ;

Gupta, Vinay .

INTERNATIONAL JOURNAL ON SMART SENSING AND INTELLIGENT SYSTEMS, 2009, 2 (03) :503-514

[7] Effect of Platinum Impregnation on ZnO Tetrapods for Ethanol Sensor [J].

Hongsith, N. ;

Choopun, S. .

SMART MATERIALS, 2008, 55-57 :289-292

[8]

Kwon YJ, 2002, J CERAM PROCESS RES, V3, P146

[9] Low-temperature electrodeposited Co-doped ZnO nanorods with enhanced ethanol and CO sensing properties [J].

Li, Yi-Jing ;

Li, Kun-Mu ;

Wang, Chiu-Yen ;

Kuo, Chung-I ;

Chen, Lih-Juann .

SENSORS AND ACTUATORS B-CHEMICAL, 2012, 161 (01) :734-739

[10] Effects of palladium loading on the response of a thick film flame-made ZnO gas sensor for detection of ethanol vapor [J].

Liewhiran, Chaikarn ;

Phanichphant, Sukon .

SENSORS, 2007, 7 (07) :1159-1184

← 1 2 3 4 →