Jump to main content
Jump to site search


Highly selective aerobic oxidation of biomass alcohol to benzaldehyde by an in-situ doped Au/TiO2 nanotube photonic crystal photoanode for simultaneous hydrogen production promotion

Abstract

Photoelectrocatalytic conversion of biomass and its derivatives is a very significant and promising way for energy production. Selective oxidation of biomass alcohol to the corresponding aldehydes is an important class of biomass conversion reactions. In this work, a Z-Scheme type solar-driven dual photoelectrode photoelectrochemical cell is used for simultaneous selective oxidation of benzyl alcohol which is a model of biomass alcohol to benzaldehyde for hydrogen production promotion using Au/TiO2 nanotube photonic crystal (Au/TiO2 NTPC) as photoanode. The results show that the Au/TiO2 NTPC photoanode exhibits excellent photoelectrochemical performance and can conduct charge transport efficiently. The conversion of benzyl alcohol can be up to 84.68%, while the selectivity can reach more than 99%. The high conversion rate mainly depends on improvement of photoelectrocatalytic performance due to the in-situ doping of Au nanoparticles. Except for the Au nanoparticles, the O2 is an indispensable factor for the high selectivity. The results of simultaneous hydrogen production at the cathode can reach 143.83 μmol · cm-2. The results show that the anodic oxidation reaction can promote the hydrogen production. The hydrogen production efficiency increases with the oxidation rate. This model reaction can also be applied to a series of biomass alcohol selective oxidation. This study achieves simultaneous efficient selective access to hydrocarbon fuels and hydrogen, and reveals a novel, sustainable and green energy prodctuion idea and development direction.

Back to tab navigation
Please wait while Download options loads

Publication details

The article was received on 14 Apr 2017, accepted on 16 May 2017 and first published on 16 May 2017


Article type: Paper
DOI: 10.1039/C7TA03252H
Citation: J. Mater. Chem. A, 2017, Accepted Manuscript
  •   Request permissions

    Highly selective aerobic oxidation of biomass alcohol to benzaldehyde by an in-situ doped Au/TiO2 nanotube photonic crystal photoanode for simultaneous hydrogen production promotion

    Z. Wu, J. Wang, Z. Zhou and G. Zhao, J. Mater. Chem. A, 2017, Accepted Manuscript , DOI: 10.1039/C7TA03252H

Search articles by author