Gas-Sensing Mechanism of Nanocrystalline Mesoporous Metal Oxide for Detection of volatile Organic Compounds
The utilization of mesoporous metal oxides as sensing materials which are synthesized via nanocasting (structure replication) method that gave an ordered and well-defined structures, high surface area and porosity, high crystallinity, small crystallite and grain size would be expected to be succes...
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| Format: | Monograph |
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Universiti Sains Malaysia
2015
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| Summary: | The utilization of mesoporous metal oxides as sensing materials which are synthesized via nanocasting (structure
replication) method that gave an ordered and well-defined structures, high surface area and porosity, high crystallinity,
small crystallite and grain size would be expected to be successfully applied in gas sensors by Improving their gassensing
properties such as sensitivity, selectivity, stability and speed of response. The present works attempt to
investigate the behavior of chemisorption and diffusion of the synthesized nanocrystalline mesoporous metal oxides
powders In order to establish the gas-sensing mechanism. The correlation on the utilization of a zeolite layer as a
membrane filter over the sensing materials is also investigated. Correlation between the gas-sensing performance and
catalytic-oxidation activity of the gas sensors has been established in order to understand their sensing/ reaction
piechanism in details.
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