Au/TiO2 Lyogels for Hydrogen Production

Elies Molins, Mónica Benito, Ignasi Mata, Lester Martínez, Lluís Soler, Jordi Llorca. MRS Advances, 2017, 2, 3499-3504. DOI: https://doi.org/10.1557/adv.2017.346

Au/TiO2 lyogels have been prepared by sol-gel process followed by freeze-drying and calcination in order to induce crystallization. In the synthesis, a dispersion of AuNPs was added either during the sol-gel process or mixed with the lyogels in a ball mill after the freeze-drying. The lyogels are formed of TiO2 crystallites decorated with Au nanoparticles. The size of the TiO2 crystallites and the proportion of anatase and rutile depend on the parameters of the calcinations. The efficiency in photocatalysis diminishes with the size of the crystallites and is optimal when the lyogels include rutile together with the photoactive anatase.

 

Sustainable energy conversion & storage systems

  • Hits: 2799

INSTITUT DE CIÈNCIA DE MATERIALS DE BARCELONA, Copyright © 2020 ICMAB-CSIC | Privacy Policy | This email address is being protected from spambots. You need JavaScript enabled to view it.