Synthesis of 1D ZnO Crystals and Sensing Properties for NO2 Gas

被引：10

作者：

Bai, S. L. ^{[1
]}

Chen, L. Y. ^{[2
]}

Luo, R. X. ^{[1
]}

Zhang, K. W. ^{[1
]}

Li, D. Q. ^{[1
]}

Chen, A. F. ^{[1
]}

Liu, C. C. ^{[2
]}

机构：

[1] Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China

[2] Case Western Reserve Univ, Dept Chem Engn, Cleveland, OH 44106 USA

来源：

IEEE SENSORS JOURNAL | 2011年 / 11卷 / 09期

基金：

中国国家自然科学基金; 北京市自然科学基金;

关键词：

NO2; one-dimensional (1D) ZnO; sensing property; synthesis technology; SENSOR;

D O I：

10.1109/JSEN.2011.2106155

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：

One-dimensional (1D) ZnO nanocrystals with different morphologies and sizes including pencil-like, flower-like and needle-like, have been hydrothermally synthesized with cetyltrimethyl ammonium bromide (CTAB), sodium dodecyl sulphate (SDS), and polyethylene glycol (PEG) assisted. This paper focuses on the material synthesis, structure and application for NO2 sensor. Experimental results show that the sensor based on ZnO nanorods not only had high response to NO2 but also exhibited high selectivity to CO and CH4 in same gas concentration. The response was greatly enhanced by doping Cd of transition metal, the effect of Cd loading on ZnO sensing property has been discussed by X-ray photoelectron spectroscopy (XPS) analysis.

引用

页码：1969 / 1974

页数：6

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