Ultrafast hydrogen sensing through hybrids of semiconducting single-walled carbon nanotubes and tin oxide nanocrystals

Shun Mao; Shumao Cui; Kehan Yu; Zhenhai Wen; Ganhua Lu; Junhong Chen

doi:10.1039/c2nr11765g

Ultrafast hydrogen sensing through hybrids of semiconducting single-walled carbon nanotubes and tin oxide nanocrystals

Nanoscale. 2012 Feb 21;4(4):1275-9. doi: 10.1039/c2nr11765g. Epub 2012 Jan 18.

Authors

Shun Mao¹, Shumao Cui, Kehan Yu, Zhenhai Wen, Ganhua Lu, Junhong Chen

Affiliation

¹ Department of Mechanical Engineering, University of Wisconsin-Milwaukee, 3200 N Cramer Street, Milwaukee, WI 53211, USA.

PMID: 22252288
DOI: 10.1039/c2nr11765g

Abstract

We report an ultrafast and sensitive hydrogen (H(2)) sensing platform using semiconducting single-walled carbon nanotubes (SWCNTs) decorated with tin oxide (SnO(2)) nanocrystals (NCs). The hybrid SnO(2) NC-SWCNT platform shows a response time of 2-3 seconds to 1% H(2) under room temperature and can fully recover within a few minutes in air.

Publication types

Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

Electrochemical Techniques
Electrodes
Gases / chemistry
Hydrogen / chemistry*
Nanoparticles / chemistry*
Nanotubes, Carbon / chemistry*
Semiconductors
Tin Compounds / chemistry*

Substances

Gases
Nanotubes, Carbon
Tin Compounds
Hydrogen
stannic oxide