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SM ISO690:2012 CREŢU, Vasilii, POSTICA, Vasile, STOIANOV, D., TROFIM, Viorel, SHONTYA, Viktor, LUPAN, Oleg. Hydrogen gas sensor based on nanograined Pd/α-MoO3 belts. In: IFMBE Proceedings: 3rd International Conference on Nanotechnologies and Biomedical Engineering, ICNBME 2015, Ed. 3, 23-26 septembrie 2015, Chişinău. Springer, 2016, Editia 3, Vol.55, pp. 361-364. ISBN 978-981287735-2. ISSN 16800737. DOI: https://doi.org/10.1007/978-981-287-736-9_87 |
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IFMBE Proceedings Editia 3, Vol.55, 2016 |
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Conferința "International Conference on Nanotechnologies and Biomedical Engineering" 3, Chişinău, Moldova, 23-26 septembrie 2015 | ||||||
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DOI:https://doi.org/10.1007/978-981-287-736-9_87 | ||||||
Pag. 361-364 | ||||||
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In this work, a simple and cost-effective method for nanostructurization of α-MoO3 micro-belts by using an aqueous solution of PdCl2 is reported. Obtained nanograined Pd/α-MoO3 belts, with 70-80 nm average diameters of nanocrystallites were integrated in sensor structures for application in hydrogen gas sensing. In dependence of method for nanostructurization, a gas response of about 2 – 3 at 200 °C operating temperature was obtained. In case of K+ doped samples, the hydrogen response was enhanced to about 7.5. To explain the obtained results, the gas sensing mechanism based on catalyst properties of Pd nanoparticles and generation of oxygen vacancies is discussed in details. |
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Cuvinte-cheie gas sensor, hydrogen, Mechanism, MoO3, Nanostructured |
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<meta name="citation_title" content="Hydrogen gas sensor based on nanograined Pd/α-MoO3 belts"> <meta name="citation_author" content="Creţu Vasilii"> <meta name="citation_author" content="Postica Vasile"> <meta name="citation_author" content="Stoianov D."> <meta name="citation_author" content="Trofim Viorel"> <meta name="citation_author" content="Shontya Viktor"> <meta name="citation_author" content="Lupan Oleg"> <meta name="citation_publication_date" content="2016"> <meta name="citation_collection_title" content="IFMBE Proceedings"> <meta name="citation_volume" content="Editia 3, Vol.55"> <meta name="citation_firstpage" content="361"> <meta name="citation_lastpage" content="364"> <meta name="citation_pdf_url" content="https://ibn.idsi.md/sites/default/files/imag_file/Hydrogen%20gas%20sensor.pdf">