Nitric oxide gas sensing at room temperature by functionalized single zinc oxide nanowire

被引：24

作者：

Verma, Ved Prakash ^{[1
]}

Das, Santanu ^{[1
]}

Hwang, Sookhyun ^{[2
]}

Choi, Hyonkwang ^{[2
]}

Jeon, Minhyon ^{[2
]}

Choi, Wonbong ^{[1
]}

机构：

[1] Florida Int Univ, Dept Mech & Mat Engn, Miami, FL 33174 USA

[2] Inje Univ, Dept Nanosyst Engn, Gimhae 621749, South Korea

来源：

MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS | 2010年 / 171卷 / 1-3期

关键词：

Nanotechnology; Sensor; Zinc oxide; Nanowires; Catalyst; EXHALED AIR; ADSORPTION; NO2; PHOTODETECTORS; MECHANISM; NANOTUBE; DIOXIDE; SENSORS; NH3;

D O I：

10.1016/j.mseb.2010.03.066

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on room temperature detection of nitric oxide (NO) gas at low-ppm level by Cr nanoparticle decorated single zinc oxide nanowire (ZNW) sensor. In this sensor device Cr nanoparticles, act as catalyst to transform NO into NO2 and results in change in current value through ZNW, corresponding to NO gas concentration. The sensor exhibits average sensitivity of similar to 46% for 10 ppm of NO gas. The lowest detection limit of the sensor is similar to 1.5 ppm for NO gas. Sensor shows selectivity towards NO gas during a cross-sensitivity test with N-2, CO and CO2 gases. Recovery of the sensor is achieved by ultraviolet light induced desorption of gases from ZNW surface. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：45 / 49

页数：5

共 41 条

[1]

ALVING K, 1993, EUR RESPIR J, V6, P1368

[2] Adsorption of O2, H2, CO, NH3, and NO2 on ZnO nanotube:: A density functional theory study [J].

An, Wei ;

Wu, Xiaojun ;

Zeng, X. C. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (15) :5747-5755

[3] Factors influencing the gas sensing characteristics of tin dioxide films deposited by spray pyrolysis: understanding and possibilities of control [J].

Brinzari, V ;

Korotcenkov, G ;

Golovanov, V .

THIN SOLID FILMS, 2001, 391 (02) :167-175

[4] Adsorption of NH3 and NO2 molecules on carbon nanotubes [J].

Chang, H ;

Lee, JD ;

Lee, SM ;

Lee, YH .

APPLIED PHYSICS LETTERS, 2001, 79 (23) :3863-3865

[5] Chemical sensing with ZnO nanowire field-effect transistor [J].

Fan, Zhiyong ;

Lu, Jia G. .

IEEE TRANSACTIONS ON NANOTECHNOLOGY, 2006, 5 (04) :393-396

[6] Gate-refreshable nanowire chemical sensors [J].

Fan, ZY ;

Lu, JG .

APPLIED PHYSICS LETTERS, 2005, 86 (12) :1-3

[7] ZnO nanowire field-effect transistor and oxygen sensing property [J].

Fan, ZY ;

Wang, DW ;

Chang, PC ;

Tseng, WY ;

Lu, JG .

APPLIED PHYSICS LETTERS, 2004, 85 (24) :5923-5925

[8] Detection of nitric oxide and nitrogen dioxide with photoluminescent porous silicon [J].

Harper, J ;

Sailor, MJ .

ANALYTICAL CHEMISTRY, 1996, 68 (21) :3713-3717

[9] Novel hand-held device for exhaled nitric oxide-analysis in research and clinical applications [J].

Hemmingsson T. ;

Linnarsson D. ;

Gambert R. .

Journal of Clinical Monitoring and Computing, 2004, 18 (5-6) :379-387

[10]

Huang MH, 2001, ADV MATER, V13, P113, DOI 10.1002/1521-4095(200101)13:2<113::AID-ADMA113>3.0.CO

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