Fabrication of WS3-x Thin Films as Photocathodes for Driving Photocatalyzed Water Splitting
Poster Number
060
College
College of Arts and Sciences
Department
Chemistry, Physics, Geology, & the Environment
Faculty Mentor
: Clifton Harris, Ph.D.; harrisc@winthrop.edu
Abstract
A novel spin-coating method has been developed for the synthesis of WS3-x thin films on transparent, conductive substrates. These films, under external bias, have been shown to catalyze hydrogen gas evolution in 0.5 M H2SO4 solution. By layering this p-type material onto a suitable oxygen-evolving catalyst, deactivation processes such as photobleaching can be prevented without the use of sacrificial additives, and both hydrogen and oxygen evolution can be sustained over extended durations of illumination.
Previously Presented/Performed?
South Carolina EPSCoR/IDeA State Conference, Columbia, South Carolina, April 2018
Grant Support?
Student Supported by an REU grant from the South Carolina EPSCoR/IDeA Program
Start Date
20-4-2018 2:15 PM
End Date
20-4-2018 4:15 PM
Fabrication of WS3-x Thin Films as Photocathodes for Driving Photocatalyzed Water Splitting
Richardson Ballroom
A novel spin-coating method has been developed for the synthesis of WS3-x thin films on transparent, conductive substrates. These films, under external bias, have been shown to catalyze hydrogen gas evolution in 0.5 M H2SO4 solution. By layering this p-type material onto a suitable oxygen-evolving catalyst, deactivation processes such as photobleaching can be prevented without the use of sacrificial additives, and both hydrogen and oxygen evolution can be sustained over extended durations of illumination.
