PlumX Metrics
Embed PlumX Metrics

Photocatalytic effects on Au@TiO 2 confined in BMIm.NTf 2 ionic liquid for hydrogen evolution reactions

International Journal of Hydrogen Energy, ISSN: 0360-3199, Vol: 48, Issue: 81, Page: 31629-31642
2023
  • 2
    Citations
  • 0
    Usage
  • 12
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

Article Description

We report a photocatalytic device based on gold nanoparticles (AuNPs/TiO 2 ) coated with an ionic liquid (IL) as a very active, stable, and versatile system for hydrogen evolution reactions (HERs) via methanol photo reforming (MPR) and photocatalytic water-splitting (WSR) reaction. The devices prepared by magnetron sputtering yield hybrid materials with direct Au–TiO 2 interactions that were subsequently coated with BMIm.NTf 2 ( IL@Au@TiO 2 ). The IL presence critically enhances the photocatalytic performance given its interaction with the AuNPs and TiO 2 surfaces by decreasing the flat band energy levels and the Schottky barrier thickness. The results show an increase in the number of charge carriers yielding a capacitor-like effect generated by interactions of IL and Au@TiO 2 particles. Apparent quantum yield (AQY) up to 28.3% under UV irradiation (365 nm) and 22.9% at 405 nm irradiation were observed in the HER employing the as-prepared materials.

Bibliographic Details

Gustavo J. Chacón R; Fabiano S. Rodembusch; Brunno L. Albuquerque; Wellington D.G. Gonçalves; Jonder Morais; Daniel L. Baptista; Allan de Moraes Lisbôa; Adriano Feil; Dario Eberhardt; José Espeso; Jairton Dupont

Elsevier BV

Energy; Physics and Astronomy

Provide Feedback

Have ideas for a new metric? Would you like to see something else here?Let us know