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Earth Abundant Materials for Water Splitting Catalysis

Earth Abundant Materials for Water Splitting Catalysis

Cobalt oxides are among the best performers as future alternative electrocatalysts for the water splitting reaction with attractive properties in terms of stability, efficiency, abundance and low-cost. However, fundamental understanding of the catalytic properties of CoOx is still limited. To elucidate the fundamental structure, composition and surface chemistry of CoOx based catalysts, we characterize the surface of CoOx nanoislands under ultra-high vacuum conditions by high-resolution Scanning Tunneling Microscopy (STM) and X-Ray Photoelectron and Absorption Spectroscopies (XPS and XAS).

Walton, A. S.; Fester, J.; Bajdich, M.; Arman, M. A.; Osiecki, J.; Knudsen, J.; Vojvodic, A.; Lauritsen, J. V. "Interface controlled oxidation States in layered cobalt oxide nanoislands on gold" ACS Nano 2015, 9, 2445-53.

The project is funded by the Lundbeck Foundation.