Hydrogen production using mixed oxides: TiO2-M (CoO and WO3)
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| Formato: | Artículo (Article) |
| Lenguaje: | Español (Spanish) |
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Universidad Libre
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| Acceso en línea: | https://hdl.handle.net/10901/15239 |
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Pérez-Larios, Alejandro Gómez, Ricardo 2013-12-01 2019-03-19T16:23:01Z 2019-03-19T16:23:01Z https://revistas.unilibre.edu.co/index.php/avances/article/view/2746 https://hdl.handle.net/10901/15239 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. application/pdf spa spa Universidad Libre https://revistas.unilibre.edu.co/index.php/avances/article/view/2746/2166 Revistas – Ingenierías http://creativecommons.org/licenses/by-nc-nd/2.5/co/ Atribución-NoComercial-SinDerivadas 2.5 Colombia AVANCES: Investigación en Ingeniería; Vol. 10 Núm. 2 (2013): Avances Investigación en Ingeniería; 27-34 2619-6581 1794-4953 Hydrogen production using mixed oxides: TiO2-M (CoO and WO3) http://purl.org/coar/resource_type/c_6501 http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| institution |
Universidad Libre de Colombia |
| collection |
DSpace |
| title |
Hydrogen production using mixed oxides: TiO2-M (CoO and WO3) |
| spellingShingle |
Hydrogen production using mixed oxides: TiO2-M (CoO and WO3) Pérez-Larios, Alejandro Gómez, Ricardo |
| title_short |
Hydrogen production using mixed oxides: TiO2-M (CoO and WO3) |
| title_full |
Hydrogen production using mixed oxides: TiO2-M (CoO and WO3) |
| title_fullStr |
Hydrogen production using mixed oxides: TiO2-M (CoO and WO3) |
| title_full_unstemmed |
Hydrogen production using mixed oxides: TiO2-M (CoO and WO3) |
| title_sort |
hydrogen production using mixed oxides: tio2-m (coo and wo3) |
| author |
Pérez-Larios, Alejandro Gómez, Ricardo |
| author_facet |
Pérez-Larios, Alejandro Gómez, Ricardo |
| language |
Español (Spanish) |
| publisher |
Universidad Libre |
| format |
Artículo (Article) |
| url |
https://hdl.handle.net/10901/15239 |
| _version_ |
1779705774714388480 |
| score |
12,131701 |