Journal
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
Volume 15, Issue 13, Pages 4554-4565Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3cp50540e
Keywords
-
Funding
- Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences of the U.S. Department of Energy [DE-FG02-09ER16119]
- Welch Foundation [F-1436, F-0021]
- National Science Foundation [0618242, CHE-1003947]
- National Science Foundation Graduate Research Fellowship Program
- University of Texas at Austin Cockrell School of Engineering for the Thrust
- Direct For Mathematical & Physical Scien
- Division Of Chemistry [1003947] Funding Source: National Science Foundation
Ask authors/readers for more resources
A new dispenser and scanner system is used to create and screen Bi-M-Cu oxide arrays for cathodic photoactivity, where M represents 1 of 22 different transition and post-transition metals. Over 3000 unique Bi : M: Cu atomic ratios are screened. Of the 22 metals tested, 10 show a M-Cu oxide with higher photoactivity than CuO and 10 show a Bi-M-Cu oxide with higher photoactivity than CuBi2O4. Cd, Zn, Sn, and Co produce the most photoactive M-Cu oxides, all showing a 200-300% improvement in photocurrent over CuO. Ag, Cd, and Zn produce the highest photoactivity Bi-M-Cu oxides with a 200-400% improvement over CuBi2O4. Most notable is a Bi-Ag-Cu oxide (Bi : Ag : Cu atomic ratio of 22 : 3 : 11) which shows 4 times higher photocurrent than CuBi2O4. This material is capable of evolving hydrogen under illumination in neutral electrolyte solutions at 0.6 V vs. RHE when Pt is added to the surface as an electrocatalyst.
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