Next Article in Journal
Recent Advances in Bacteriophage Based Biosensors for Food-Borne Pathogen Detection
Previous Article in Journal
Hybrid Modeling Method for a DEP Based Particle Manipulation
Article Menu

Export Article

Open AccessArticle
Sensors 2013, 13(2), 1754-1762; doi:10.3390/s130201754

Enhancement of NH3 Gas Sensitivity at Room Temperature by Carbon Nanotube-Based Sensor Coated with Co Nanoparticles

1
School of Engineering Physics, Hanoi University of Science and Technology, 1 Dai Co Viet Rd, Hanoi 10000, Vietnam
2
Advanced Institute of Science and Technology, Hanoi University of Science and Technology, 1 Dai Co Viet Rd, Hanoi 10000, Vietnam
*
Author to whom correspondence should be addressed.
Received: 27 November 2012 / Revised: 25 January 2013 / Accepted: 29 January 2013 / Published: 30 January 2013
(This article belongs to the Section Chemical Sensors)
View Full-Text   |   Download PDF [466 KB, uploaded 21 June 2014]   |  

Abstract

Multi-walled carbon nanotube (MWCNT) film has been fabricated onto Pt-patterned alumina substrates using the chemical vapor deposition method for NH3 gas sensing applications. The MWCNT-based sensor is sensitive to NH3 gas at room temperature. Nanoclusters of Co catalysts have been sputtered on the surface of the MWCNT film to enhance gas sensitivity with respect to unfunctionalized CNT films. The gas sensitivity of Co-functionalized MWCNT-based gas sensors is thus significantly improved. The sensor exhibits good repeatability and high selectivity towards NH3, compared with alcohol and LPG.
Keywords: multi-walled carbon nanotube; CVD; sensor; NH3; catalyst multi-walled carbon nanotube; CVD; sensor; NH3; catalyst
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Nguyen, L.Q.; Phan, P.Q.; Duong, H.N.; Nguyen, C.D.; Nguyen, L.H. Enhancement of NH3 Gas Sensitivity at Room Temperature by Carbon Nanotube-Based Sensor Coated with Co Nanoparticles. Sensors 2013, 13, 1754-1762.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top