| Download | - View accepted manuscript: Selective optical detection of H₂ and CO with SiO₂ sol gel films containing NiO and Au nanoparticles (PDF, 1.0 MiB)
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| DOI | Resolve DOI: https://doi.org/10.1088/0957-4484/18/47/475505 |
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| Author | Search for: Buso, D.; Search for: Busato, G.; Search for: Guglielmi, M.; Search for: Martucci, A.; Search for: Bello, V.; Search for: Mattei, G.; Search for: Mazzoldi, P.; Search for: Post, M. L.1 |
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| Affiliation | - National Research Council of Canada. NRC Institute for Chemical Process and Environmental Technology
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| Format | Text, Article |
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| Abstract | NiO is a p-type semiconductor widely studied for its promising implementation in chemo-optical gas sensors. Reducing/oxidizing gases induce a change in optical absorption of NiO. It has been found that Au doping induces a remarkable increase in the NiO sensitivity, and at the same time silica films obtained by the sol–gel technique have been demonstrated to be a suitable support matrix for gas-sensitive materials due to their extremely high specific surface area (up to 600 m² g⁻¹). The aim of this work is the synthesis of SiO₂ films containing both NiO and Au nanoparticles and their morphological and functional characterization as active gas-sensing materials suitable for optical detectors. The possibility to selectively recognize H2 and CO is studied exploiting the wavelength dependence of the gas-induced optical transmittance variation. |
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| Publication date | 2007-10-26 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NRC number | NRCC 52163 |
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| NPARC number | 15552655 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 68b5ae82-4d82-44b2-894b-c5337f4d2616 |
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| Record created | 2010-06-10 |
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| Record modified | 2020-05-10 |
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