When 3:30 PM - 5:00 PM Sep 06, 2013
Where 1670 Beyster Building
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Seeing is Believing: Shining Light on Electrochemically-Active Materials


William Chueh
Stanford University, Department of Materials Science and Engineering

Electrochemistry plays a crucial role in virtually all energy storage and conversion technologies, such as batteries, fuel cells, and watersplitting membranes. The complexity of electrochemically-driven reactions and transformations is masked by the apparent simplicity of global reactions. While traditional current-voltage measurements have untangled some aspects of electrochemistry, much is not understood. We are employing in-situ spectroscopy and microscopy characterizations to shed light on the detailed kinetics and thermodynamics of electrochemical reactions while they take place. In this talk, I will present new insights on three important class of reactions: (1) water splitting on cerium oxide electrocatalysts, (2) oxygen reduction on ferrate-perovskite electrocatalysts, and (3) lithium insertion in lithium iron phosphate olivine battery electrodes.

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