Solar hydrogen production from aqueous solutions of ethanol

• Autor(es): Rangel, C. M. ; Silva, R. A. ; Fernandes, Vitor R. ; Paiva, T. I. ; Chesnau, J.
• Data: 2008
• Identificador Persistente: http://hdl.handle.net/10400.9/749
• Origem: Repositório do LNEG
• Assunto(s): Semiconductor electrodes; Hydrogen production; Titania; Water splitting; Photo-catalytic materials
• Tipo de Documento: Documento de conferência
• Idioma: Inglês

Descrição

In this work, photo-catalytic hydrogen production from water is studied, using ethanol as sacrificial agent. Titania was used as a base catalyst due to its stability and corrosion resistance as well as its environmental friendliness and low cost. The need to decrease the electron-hole recombination rate was accounted for by metal doping and also by using the ethanol molecule as a hole trap. Hydrogen production was achieved using own synthesised sol-gel metal doped titania, with production rate values being larger than published literature data.