Hydrogen production using mixed oxides: TiO2-M (CoO and WO3)
| dc.contributor.author | Pérez-Larios, Alejandro | |
| dc.contributor.author | Gómez, Ricardo | |
| dc.date | 2013-12-01 | |
| dc.date.accessioned | 2019-03-19T16:23:01Z | |
| dc.date.available | 2019-03-19T16:23:01Z | |
| 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.identifier | https://revistas.unilibre.edu.co/index.php/avances/article/view/2746 | |
| dc.identifier.uri | https://hdl.handle.net/10901/15239 | |
| dc.language | spa | |
| dc.language.iso | spa | spa |
| dc.publisher | Universidad Libre | es-ES |
| dc.relation | https://revistas.unilibre.edu.co/index.php/avances/article/view/2746/2166 | |
| dc.relation.ispartofjournal | Revistas – Ingenierías | spa |
| dc.rights.license | Atribución-NoComercial-SinDerivadas 2.5 Colombia | * |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/2.5/co/ | * |
| 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.title | Hydrogen production using mixed oxides: TiO2-M (CoO and WO3) | en-US |
| dc.type.coar | http://purl.org/coar/resource_type/c_6501 | |
| dc.type.coarversion | http://purl.org/coar/version/c_970fb48d4fbd8a85 |