Hydrogen production using mixed oxides: TiO2-M (CoO and WO3)

Pérez-Larios, Alejandro; Gómez, Ricardo

dc.creator	Pérez-Larios, Alejandro
dc.creator	Gómez, Ricardo
dc.date	2013-12-01
dc.date.accessioned	2022-05-25T14:01:19Z
dc.date.available	2022-05-25T14:01:19Z
dc.identifier	https://revistas.unilibre.edu.co/index.php/avances/article/view/2746
dc.identifier.uri	http://test.repositoriodigital.com:8080/handle/123456789/36136
dc.description	In this work we obtained materials of titanium dioxidewhit mixed oxide CoO-TiO2 and WO3-TiO2(1.0, 3.0, 5.0 %wt). The solids were characterizedby; nitrogen physisorption (BET) and porosity(BJH), XRD patterns and UV-Vis spectroscopy.The photoactivity was evaluated using a Pyrexreactor of 200 ml using a solution ethanol-water(1:1 molar ratio) and 0.1 g of catalyst using a highpressure Hg lamp (with a wavelength of 254 nmand an intensity of 2.2 mW/cm2 encapsulated ina quartz tube. The results showed materials withspecific surface area among 89 to 95 m2/g and 41to 91 m2/g with mesopority characteristics. TheXRD patterns show the formation of the crystallineanatase phase. The band gap energy (Eg) for thematerials were obtained with UV-Vis spectroscopy,the Eg values were lower than 3.2 eV for both mixedoxide. In the water splitting evaluation a maximin the efficient was found at Co and W at 5 wt.%.The hydrogen produced was 1000 μmol/h and 950μmol/h respectively, this is a value comparable torespect other works.	en-US
dc.format	application/pdf
dc.language	spa
dc.publisher	Universidad Libre	es-ES
dc.relation	https://revistas.unilibre.edu.co/index.php/avances/article/view/2746/2166
dc.source	Avances: Investigación en Ingeniería; Vol. 10 No. 2 (2013): Avances Investigación en Ingeniería; 27-34	en-US
dc.source	Avances Investigación en Ingeniería; Vol. 10 Núm. 2 (2013): Avances Investigación en Ingeniería; 27-34	es-ES
dc.source	2619-6581
dc.source	1794-4953
dc.source	10.18041/avances.v10i1
dc.subject	Hydrogen production	en-US
dc.subject	Mixed oxide	en-US
dc.subject	Sol gel	en-US
dc.subject	Photocatalysts	en-US
dc.subject	UV-vis	en-US
dc.title	Hydrogen production using mixed oxides: TiO2-M (CoO and WO3)	en-US
dc.type	info:eu-repo/semantics/article
dc.type	info:eu-repo/semantics/publishedVersion
dc.type	Peer reviewed Article	en-US

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