Journal
LANGMUIR
Volume 39, Issue 36, Pages 12715-12724Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.langmuir.3c01450
Keywords
-
Ask authors/readers for more resources
This study innovatively loaded Pt nanoparticles on oxygen vacancy-rich TiO2 (Pt/Vo-TiO2) in situ using a photocatalytic device, which showed a synergistic effect on the progress of the HER kinetics. Pt/Vo-TiO2 exhibited excellent electrocatalytic performance, providing a new strategy for designing highly efficient HER catalysts.
Oxygen vacancy-rich titania is a promising support for enhancing the hydrogen evolution reaction (HER). This work innovatively loaded Pt nanoparticles on oxygen vacancy-rich TiO2 (Pt/Vo-TiO2) in situ by using a photocatalytic device. The synthesis conditions are mild, do not require high temperatures and strong reducing agents, and can avoid the accumulation of platinum species. X-ray photoelectron spectroscopy (XPS) and X-ray absorption spectrometry (XAS) verified the synergistic effect of Pt species and oxygen vacancies on the progress of the reaction kinetics, where the Pt particles exposed by the in situ synthesis functioned as reaction sites in the electrocatalytic hydrogen evolution. Based on this, Pt/Vo-TiO2 exhibits excellent electrocatalytic performance with an overpotential of only 56 mV at a current density of 10 mA cm(-2) and a Tafel slope of only 73.5 mV dec(-1). This work provides a new strategy for designing highly efficient HER catalysts.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available