Home > Articles > Published articles > Porous NiTiO3/TiO2 nanostructures for photocatatalytic hydrogen evolution |
Date: | 2019 |
Abstract: | We present a strategy to produce porous NiTiO/TiO nanostructures with excellent photocatalytic activity toward hydrogen generation. In a first step, nickel-doped TiO needle bundles were synthesized by a hydrothermal procedure. Through the sintering in air of these nanostructures, porous NiTiO/TiO heterostructured rods were obtained. Alternatively, the annealing in argon of the nickel-doped TiO needle bundles resulted in NiO/TiO elongated nanostructures. Porous NiTiO/TiO structures were tested for hydrogen evolution in the presence of ethanol. Such porous heterostructures exhibited superior photocatalytic activity toward hydrogen generation, with hydrogen production rates up to 11. 5 mmol h g at room temperature. This excellent performance is related here to the optoelectronic properties and geometric parameters of the material. |
Grants: | Ministerio de Economía y Competitividad ENE2016-77798-C4-3-R Ministerio de Economía y Competitividad ENE2015-63969-R Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-128 Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-327 Ministerio de Economía y Competitividad ENE2017-85087-C3 Ministerio de Economía y Competitividad SEV-2013-0295 |
Rights: | Tots els drets reservats. |
Language: | Anglès |
Document: | Article ; recerca ; Versió sotmesa a revisió |
Subject: | Elongated nanostructure ; Excellent photocatalytic activities ; Hydrogen evolution ; Hydrogen generations ; Hydrogen production rate ; Hydrothermal procedure ; Optoelectronic properties |
Published in: | Journal of materials chemistry, Vol. 7, Issue 28 (July 2019) , p. 17053-17059, ISSN 2050-7496 |
Preprint 9 p, 1.7 MB |