A micromachined calorimetric gas sensor: an application of electrodeposited nanostructured palladium for the detection of combustible gases
A micromachined calorimetric gas sensor: an application of electrodeposited nanostructured palladium for the detection of combustible gases
Palladium films with regular nanoarchitectures were electrochemically deposited from the hexagonal (H1) lyotropic liquid crystalline phase of the nonionic surfactant octaethyleneglycol monohexadecyl ether (C16EO8) onto micromachined silicon hotplate structures. The H1-e Pd films were shown to have high surface areas (~28 m2 g-1) and to act as effective and stable catalysts for the detection of methane in air on heating to 500 °C. The response of the H1-e Pd-coated planar pellistors was found to be linearly proportional to the concentration of methane between 0 and 2.5% in air with a detection limit below 0.125%. Our results show that the electrochemical deposition of nanostructured metal films offers a promising approach to the fabrication of micromachined calorimetric gas sensors for combustible gases.
si-planar-pellistor, catalytic-oxidation, supported palladium, methane oxidation, high-sensitivity, metal-catalysts, platinum films, alumina, state, chemistry
126-132
Bartlett, Philip N.
d99446db-a59d-4f89-96eb-f64b5d8bb075
Guerin, Samuel
e185e0c2-85c6-4d1c-a2cf-cd2f410d346f
1 January 2003
Bartlett, Philip N.
d99446db-a59d-4f89-96eb-f64b5d8bb075
Guerin, Samuel
e185e0c2-85c6-4d1c-a2cf-cd2f410d346f
Bartlett, Philip N. and Guerin, Samuel
(2003)
A micromachined calorimetric gas sensor: an application of electrodeposited nanostructured palladium for the detection of combustible gases.
Analytical Chemistry, 75 (1), .
(doi:10.1021/ac026141w).
Abstract
Palladium films with regular nanoarchitectures were electrochemically deposited from the hexagonal (H1) lyotropic liquid crystalline phase of the nonionic surfactant octaethyleneglycol monohexadecyl ether (C16EO8) onto micromachined silicon hotplate structures. The H1-e Pd films were shown to have high surface areas (~28 m2 g-1) and to act as effective and stable catalysts for the detection of methane in air on heating to 500 °C. The response of the H1-e Pd-coated planar pellistors was found to be linearly proportional to the concentration of methane between 0 and 2.5% in air with a detection limit below 0.125%. Our results show that the electrochemical deposition of nanostructured metal films offers a promising approach to the fabrication of micromachined calorimetric gas sensors for combustible gases.
This record has no associated files available for download.
More information
Published date: 1 January 2003
Keywords:
si-planar-pellistor, catalytic-oxidation, supported palladium, methane oxidation, high-sensitivity, metal-catalysts, platinum films, alumina, state, chemistry
Identifiers
Local EPrints ID: 19889
URI: http://eprints.soton.ac.uk/id/eprint/19889
ISSN: 0003-2700
PURE UUID: 7fd7c759-a88f-49c5-92b3-5720bbee670b
Catalogue record
Date deposited: 23 Feb 2006
Last modified: 16 Mar 2024 02:42
Export record
Altmetrics
Contributors
Author:
Samuel Guerin
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics
