Journal
CHEMICAL SCIENCE
Volume 8, Issue 1, Pages 253-259Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6sc02664h
Keywords
-
Categories
Funding
- College of Liberal Arts and Sciences at Arizona State University
- Biodesign Institute Center for Applied Structural Discovery (CASD)
- LightWorks
- IGERT-SUN fellowships - National Science Foundation [1144616]
Ask authors/readers for more resources
We report a direct one-step method to chemically graft metalloporphyrins to a visible-light-absorbing gallium phosphide semiconductor with the aim of constructing an integrated photocathode for light activating chemical transformations that include capturing, converting, and storing solar energy as fuels. Structural characterization of the hybrid assemblies is achieved using surface-sensitive spectroscopic methods, and functional performance for photoinduced hydrogen production is demonstrated via three-electrode electrochemical testing combined with photoproduct analysis using gas chromatography. Measurements of the total per geometric area porphyrin surface loadings using a cobalt-porphyrin based assembly indicate a turnover frequency >= 3.9 H-2 molecules per site per second, representing the highest reported to date for a molecular-catalyst-modified semiconductor photoelectrode operating at the H+/H-2 equilibrium potential under 1-sun illumination.
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