Ethanol-sensing characteristics of CdFe2O4 sensor prepared by sol-gel method

被引：51

作者：

Lou, Xiangdong ^{[1
]}

Liu, Shuping

Shi, Dongyang

Chu, Wenfei

机构：

[1] Henan Normal Univ, Coll Chem & Environm Sci, Xinxiang 453007, Peoples R China

[2] Henan Normal Univ Lib, Xinxiang 4530007, Peoples R China

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2007年 / 105卷 / 01期

关键词：

CdFe2O4; ethanol sensor; response characteristics;

D O I：

10.1016/j.matchemphys.2007.04.038

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

CdFe2O4 powder with the structure of spinel-type was fabricated by sol-gel method in the citric acid system. The structure and the crystal phase of the powder were characterized on an X-ray diffractometer (XRD). The shape and the size were analyzed by transmission electron microscope (TEM). Several items were investigated, including effects of calcining temperature on gas-sensing properties, gas response vs. working temperature, selectivity and long-term stability. The results demonstrated that the CdFe2O4 sensor prepared with the powder calcined at 700 degrees C has a high response, an excellent selectivity, a quick response behavior, and a good stability to ethanol comparing with the CdFe2O4 sensors which dealt with at other temperatures. Its response to 100ppm ethanol is 55 working at 250 degrees C. (c) 2007 Published by Elsevier B.V.

引用

页码：67 / 70

页数：4

共 14 条

[1] Sulfide-sensing characteristics of MFe2O4 (M = Zn, Cd, Mg and Cu) thick film prepared by co-precipitation method [J].

Chu, XF ;

Zheng, CM .

SENSORS AND ACTUATORS B-CHEMICAL, 2003, 96 (03) :504-508

[2] Novel selective ethanol sensors:: W/TiO2 thin films by sol-gel spin-coating [J].

Garzella, C ;

Bontempi, E ;

Depero, LE ;

Vomiero, A ;

Della Mea, G ;

Sberveglieri, G .

SENSORS AND ACTUATORS B-CHEMICAL, 2003, 93 (1-3) :495-502

[3]

GE XT, 2001, J CHEM PHYS, V14, P485

[4] Relationship between ethanol gas sensitivity and surface catalytic property of tin oxide sensors modified with acidic or basic oxides [J].

Jinkawa, T ;

Sakai, G ;

Tamaki, J ;

Miura, N ;

Yamazoe, N .

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2000, 155 (1-2) :193-200

[5]

LI XQ, 1998, J U SCI TECHNOL CHIN, V28, P49

[6] Vanadium pentoxide nanobelts: Highly selective and stable ethanol sensor materials [J].

Liu, JF ;

Wang, X ;

Peng, Q ;

Li, YD .

ADVANCED MATERIALS, 2005, 17 (06) :764-+

[7] Simple synthesis of MgFe2O4 nanoparticles as gas sensing materials [J].

Liu, YL ;

Liu, ZM ;

Yang, Y ;

Yang, HF ;

Shen, GL ;

Yu, RQ .

SENSORS AND ACTUATORS B-CHEMICAL, 2005, 107 (02) :600-604

[8] Two-step synthesis and ethanol sensing properties of Zn2SnO4-SnO2 nanocomposites [J].

Lu, ZG ;

Tang, YG .

MATERIALS CHEMISTRY AND PHYSICS, 2005, 92 (01) :5-9

[9] Influence of Al, In, Cu, Fe and Sn dopants on the response of thin film ZnO gas sensor to ethanol vapour [J].

Paraguay, DF ;

Miki-Yoshida, M ;

Morales, J ;

Solis, J ;

Estrada, LW .

THIN SOLID FILMS, 2000, 373 (1-2) :137-140

[10] Preparation of Fe2O3(0.9)-SnO2(0.1) by hydrazine method:: application as an alcohol sensor [J].

Reddy, CVG ;

Cao, W ;

Tan, OK ;

Zhu, W .

SENSORS AND ACTUATORS B-CHEMICAL, 2002, 81 (2-3) :170-175

← 1 2 →