Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/53588
Title: Influence of nickel in the hydrogen production activity of TiO2
Authors: Pulido Melián, Elisenda 
Jardiel, Teresa 
Doña Rodríguez, José Miguel 
Caballero Cuesta, Amador 
González Calatayud, David
González Díaz, Óscar Manuel 
Suárez Rodríguez, María Nereida 
Araña Mesa, Francisco Javier 
UNESCO Clasification: 221001 Catálisis
Keywords: Hydrogen
Photocatalysis
Nickel
TiO2
Issue Date: 2014
Publisher: 0926-3373
Project: Sistema Completo de Caracterización de la Relación Entre Composición, Estructura y Fotoactividad de Sólidos Sintéticos Con Aplicaciones Fotocatalíticas. 
Journal: Applied Catalysis B: Environmental 
Abstract: Sol–gel synthesised TiO2 developed by our group was modified through the addition of nickel nitrate and ammonium carbonate in the synthesis process. Photocatalysts were synthesised with different Ni/Ti molar ratios (0.015, 0.030, 0.045) and constant Ni/N ratio equal to 1.5 and subjected to post-calcination at temperatures of between 400 °C and 700 °C. Characterisation was carried out with: X-ray diffraction (XRD), UV–vis diffusive reflectance spectroscopy (DRS), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy-energy dispersive X-ray analysis (TEM-EDX), thermal analysis (TGA, DTA), aggregate size distribution, Fourier transform infrared spectroscopy (FTIR) and nitrogen adsorption-desorption isotherm (BET). Photoactivity in terms of photocatalytic hydrogen production was tested using a suspension of photocatalyst at 25 vol.% methanol. With a continuous flow of N2 in headspace the hydrogen produced was conducted to a gas chromatograph for quantification. No evidence of the presence of N was found in the photocatalyst. However, the presence of Ni enhanced TiO2 photoactivity, with a calcination temperature of 550 °C resulting in the highest photoactivity value of 260.76 μmol h−1.
URI: http://hdl.handle.net/10553/53588
ISSN: 0926-3373
DOI: 10.1016/j.apcatb.2014.01.039
Source: Applied Catalysis B: Environmental [ISSN 0926-3373], v. 152-153, p. 192-201
Appears in Collections:Artículos
Show full item record

SCOPUSTM   
Citations

33
checked on Jul 25, 2021

WEB OF SCIENCETM
Citations

34
checked on Jul 25, 2021

Page view(s)

35
checked on Jul 24, 2021

Google ScholarTM

Check

Altmetric


Share



Export metadata



Items in accedaCRIS are protected by copyright, with all rights reserved, unless otherwise indicated.