Highly sensitive CO sensors based on star-like ZnO nanostructures

被引：4

作者：

Firooz, Azam Anaraki ^{[1
]}

Akbari, Amin ^{[1
]}

机构：

[1] Shahid Rajaee Teacher Training Univ, Dept Chem, Fac Sci, POB 167855-163, Tehran, Iran

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2016年 / 27卷 / 11期

关键词：

OPTICAL-PROPERTIES; FILMS; FABRICATION; DEPOSITION; MORPHOLOGY;

D O I：

10.1007/s10854-016-5276-9

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：

ZnO with rice-like, stare-like, conical and short rod morphologies have been synthesized by a simple hydrothermal and microwave method using zinc acetate, NaOH and different templates as sucrose, galactose and hexamine. The influence of the type of template and synthesis condition on structural, optical and sensing properties was studied by X-ray diffraction, scanning electron microscopy, UV-Vis spectra, and a gas sensor characterization system. The results show the template and synthesis conditions to have significant effect on morphology, crystallite size, band gap and sensing properties. Star-like ZnO microstructures show the highest response, i.e. 40, to CO gas at 250 A degrees C than the other sensors. Sensing mechanisms are discussed in detail.

引用

页码：11488 / 11494

页数：7

共 23 条

[1] Experimental and theoretical study of CO adsorption on the surface of single phase hexagonally plate ZnO [J].

Akbari, Amin ;

Firooz, Azam Anaraki ;

Beheshtian, Javad ;

Khodadadi, Abbas Ali .

APPLIED SURFACE SCIENCE, 2014, 315 :8-15

[2] Role of the Exposed Polar Facets in the Performance of Thermally and UV Activated ZnO Nanostructured Gas Sensors [J].

Alenezi, Mohammad R. ;

Alshammari, Abdullah S. ;

Jayawardena, K. D. G. I. ;

Beliatis, Michail J. ;

Henley, Simon J. ;

Silva, S. R. P. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2013, 117 (34) :17850-17858

[3] High-quality, conductive, and transparent Ga-doped ZnO films grown by atmospheric-pressure chemical-vapor deposition [J].

An, Ha-Rim ;

Ahn, Hyo-Jin ;

Park, Jeong-Woo .

CERAMICS INTERNATIONAL, 2015, 41 (02) :2253-2259

[4] Palladium complexes based nanogravimetric sensors for carbon monoxide detection [J].

Antonaroli, Simonetta ;

Crociani, Bruno ;

Di Natale, Corrado ;

Nardis, Sara ;

Stefanelli, Manuela ;

Paolesse, Roberto .

SENSORS AND ACTUATORS B-CHEMICAL, 2015, 208 :334-338

[5]

Bateman DN, 2003, Medicine, V31, P41

[6] Highly sensitive and selective ethanol and acetone gas sensors by adding some dopants (Mn, Fe, Co, Ni) onto hexagonal ZnO plates [J].

Darvishnejad, Mohammad Hossein ;

Firooz, Azam Anaraki ;

Beheshtian, Javad ;

Khodadadi, Abbas Ali .

RSC ADVANCES, 2016, 6 (10) :7838-7845

[7] Effect of Alkali Concentration and Reaction Time on the Morphology of ZnO Nano-Microparticles Prepared by Hydrothermal Method [J].

El-Rafei, A. M. ;

Zawrah, M. E. .

JOURNAL OF CERAMIC SCIENCE AND TECHNOLOGY, 2014, 5 (03) :193-198

[8] High photocatalytic activity of Zn2SnO4 among various nanostructures of Zn2xSn1-xO2 prepared by a hydrothermal method [J].

Firooz, Azam Anaraki ;

Mahjoub, Ali Reza ;

Khodadadi, Abbas Ali ;

Movahedi, Maryam .

CHEMICAL ENGINEERING JOURNAL, 2010, 165 (02) :735-739

[9] Effects of flower-like, sheet-like and granular SnO2 nanostructures prepared by solid-state reactions on CO sensing [J].

Firooz, Azam Anaraki ;

Mahjoub, Ali Reza ;

Khodadadi, Abbas Ali .

MATERIALS CHEMISTRY AND PHYSICS, 2009, 115 (01) :196-199

[10] In2O3-ZnO nanocomposites: High sensor response and selectivity to ethanol [J].

Gholami, Mahsa ;

Khodadadi, Abbas Ali ;

Firooz, Azam Anaraki ;

Mortazavi, Yadollah .

SENSORS AND ACTUATORS B-CHEMICAL, 2015, 212 :395-403

← 1 2 3 →