TY  - JOUR
SP  - 1119
VL  - 255
IS  - Part 1
N1  - © 2017 Published by Elsevier B.V. This version is the author accepted manuscript. For information on re-use, please refer to the publisher?s terms and conditions.
UR  - http://doi.org/10.1016/j.snb.2017.07.152
SN  - 0925-4005
A1  - Evans, GP
A1  - Powell, MJ
A1  - Johnson, ID
A1  - Howard, DP
A1  - Bauer, D
A1  - Darr, JA
A1  - Parkin, IP
JF  - Sensors and Actuators B: Chemical
AV  - public
Y1  - 2017/08/07/
EP  - 1129
TI  - Room temperature vanadium dioxide?carbon nanotube gas sensors made via continuous hydrothermal flow synthesis
N2  - Vanadium dioxide?carbon nanotube (VO 2 ?CNT) nanocomposite materials were produced via a continuous hydrothermal flow synthesis (CHFS) method. The composites were made in a single step from CHFS using dispersions of commercially available single-walled carbon nanotubes (SWCNTs) or multi-walled carbon nanotubes (MWCNTs) in a metal salt solution (aq.). The room temperature gas sensing characteristics of the VO 2 -CNT nanocomposites were investigated and compared with sensors of CHFS-made VO 2 without added carbon. The VO 2 -CNT nanocomposites were found to display high sensitivity to H 2 O vapour, showing excellent potential as humidity sensors. Furthermore, p-type responses to ammonia gas were observed, with the VO 2 (no carbon) sensors showing the largest response. Overall, surface composition and microstructure were found to greatly influence sensor responses to H 2 O vapour and NH 3 gas.
ID  - discovery1574631
KW  - Gas sensor; carbon nanotubes; vandium oxides; continous hydrothermal flow synthesis; humidity sensing; ammonia gas
ER  -