Hydrogen sensing properties of multi-walled carbon nanotubes

An innovative hydrogen sensing concept is demonstrated based on the field emission from multi-walled carbon nanotubes, where the low emission currents rise in proportion to hydrogen partial pressures above 10−9 Torr.

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Effect of chemical oxidation on the gas sensing properties of multi-walled carbon nanotubes

2008 2nd IEEE International Nanoelectronics Conference ◽

10.1109/inec.2008.4585453 ◽

2008 ◽

Author(s):

M. Xu ◽

Z. Sun ◽

Q. Chen ◽

B. K. Tay

Keyword(s):

Carbon Nanotubes ◽

Gas Sensing ◽

Chemical Oxidation ◽

Sensing Properties ◽

Gas Sensing Properties ◽

Multi Walled Carbon Nanotubes ◽

Walled Carbon Nanotubes

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Hydrogen sulfide sensing properties of multi walled carbon nanotubes

Ceramics International ◽

10.1016/j.ceramint.2011.06.038 ◽

2012 ◽

Vol 38 (1) ◽

pp. 65-75 ◽

Cited By ~ 14

Author(s):

Nosrat Izadi ◽

Ali Morad Rashidi ◽

Samira Golzardi ◽

Zeinab Talaei ◽

Ali Reza Mahjoub ◽

...

Keyword(s):

Carbon Nanotubes ◽

Hydrogen Sulfide ◽

Sensing Properties ◽

Multi Walled Carbon Nanotubes ◽

Walled Carbon Nanotubes

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Tailoring gas sensing properties of multi-walled carbon nanotubes by in situ modification with Si, P, and N

Carbon ◽

10.1016/j.carbon.2012.02.047 ◽

2012 ◽

Vol 50 (8) ◽

pp. 2816-2823 ◽

Cited By ~ 34

Author(s):

Antal A. Koós ◽

Rebecca J. Nicholls ◽

Frank Dillon ◽

Krisztián Kertész ◽

László P. Biró ◽

...

Keyword(s):

Carbon Nanotubes ◽

Gas Sensing ◽

Sensing Properties ◽

In Situ Modification ◽

Gas Sensing Properties ◽

Multi Walled Carbon Nanotubes ◽

Walled Carbon Nanotubes

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Improving methane gas sensing properties of multi-walled carbon nanotubes by vanadium oxide filling

Sensors and Actuators B Chemical ◽

10.1016/j.snb.2017.02.167 ◽

2017 ◽

Vol 247 ◽

pp. 11-18 ◽

Cited By ~ 25

Author(s):

George Chimowa ◽

Zamaswazi P. Tshabalala ◽

Amos A. Akande ◽

George Bepete ◽

Bonex Mwakikunga ◽

...

Keyword(s):

Carbon Nanotubes ◽

Vanadium Oxide ◽

Gas Sensing ◽

Sensing Properties ◽

Methane Gas ◽

Gas Sensing Properties ◽

Multi Walled Carbon Nanotubes ◽

Walled Carbon Nanotubes

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HUMIDITY SENSITIVE CHARACTERISTICS OF CARBOXYLATION CARBON NANOTUBES MODIFIED WITH LiClO4

International Journal of Information Acquisition ◽

10.1142/s0219878904000021 ◽

2004 ◽

Vol 01 (01) ◽

pp. 33-38

Author(s):

XINGJIU HUANG ◽

YUFENG SUN ◽

LIANCHAO WANG ◽

FANLI MENG ◽

JINHUAI LIU

Keyword(s):

Carbon Nanotubes ◽

High Sensitivity ◽

Sensing Element ◽

Humidity Sensing ◽

Sensing Properties ◽

Carboxylate Groups ◽

Sensitivity And Selectivity ◽

Multi Walled Carbon Nanotubes ◽

Walled Carbon Nanotubes ◽

Humidity Sensing Properties

In this paper, the humidity sensing properties of multi-walled carbon nanotubes modified with LiClO 4 was investigated. FTIR spectra showed that the ends of carbon nanotubes purified with nitric acid was opened and saturated with carboxylic acid groups and carboxylate groups. For comparison, the humidity sensing characteristics of four elements, MnWO 4 (Hubnerite), BaTiO 3 (Perovskite), NiWO 4 (Huberite), ZnCr 2 O 4 (Spinel) were discussed. Experimental data showed that LiClO 4/ MWNTs element exhibited excellent humidity sensing properties, that is, the response time can reach 7 min, the recovery time within 1 min and its sensitivity up to 35 000. Also, it was found that a small increase in resistance of pure MWNTs disappeared during the first few minutes after exposure to water by modifying with LiClO 4. The static and dynamic measurements showed that WMNTs / LiClO 4 sensing element exhibited high sensitivity and selectivity to water vapor.

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