Publication detail

Titanium Dioxide Modified Multi-Walled Carbon Nanotubes as Room Temperature NH3 Gas Sensors

KAUSHIK, P. ELIÁŠ, M. PRÁŠEK, J. PYTLÍČEK, Z. ZAJÍČKOVÁ, L.

Original Title

Titanium Dioxide Modified Multi-Walled Carbon Nanotubes as Room Temperature NH3 Gas Sensors

Type

conference paper

Language

English

Original Abstract

Plasma treated and atomic layer deposition (ALD) modified multi-walled carbon nanotubes (MWCNTs) were investigated for their gas sensing properties towards ammonia gas. Titanium dioxide was deposited by ALD on plasma treated nanotubes and these modified and pristine nanotubes were compared for their gas sensing behavior. Functionalized MWCNTs showed higher response as compared to untreated ones. This favored response was the result of the increase in the defect density after plasma treatment and TiO 2 coating by ALD. Defects act as active sites for adsorption of ammonia gas molecules enhancing the sensitivity. Increase in the defect density was also proved with Raman analysis. Morphology and microstructure of the modified MWCNTs were studied using SEM.

Keywords

gas sensor, ammonia, carbon nanotubes, titanium dioxide, ALD

Authors

KAUSHIK, P.; ELIÁŠ, M.; PRÁŠEK, J.; PYTLÍČEK, Z.; ZAJÍČKOVÁ, L.

Released

27. 12. 2018

Publisher

IEEE Computer Society

Location

India

ISBN

978-1-5386-4707-3

Book

IEEE Sensors 2018 Proceeedings

ISBN

2161-2528

Periodical

Electronics Technology (ISSE)

Year of study

2018

State

United States of America

Pages from

1

Pages to

3

Pages count

3

BibTex

@inproceedings{BUT154099,
  author="Preeti {Kaushik} and Marek {Eliáš} and Jan {Prášek} and Zdeněk {Pytlíček} and Lenka {Zajíčková}",
  title="Titanium Dioxide Modified Multi-Walled Carbon Nanotubes as Room Temperature NH3 Gas Sensors",
  booktitle="IEEE Sensors 2018 Proceeedings",
  year="2018",
  journal="Electronics Technology (ISSE)",
  volume="2018",
  pages="1--3",
  publisher="IEEE Computer Society",
  address="India",
  doi="10.1109/ICSENS.2018.8589876",
  isbn="978-1-5386-4707-3",
  issn="2161-2528"
}