Electrochemical and photoelectrochemical water splitting technologies offer an important platform to produce clean and sustainable green hydrogen.  However, the high costs associated with these technologies currently limit wide-scale deployment.  One factor that contributes to these high costs are the precious metals currently utilised at the anode to drive the oxygen evolution reaction (OER) in proton exchange membrane (PEM) electrolysers. In this talk, we will examine current state-of-the art electrocatalysts employed for electrochemical water splitting with a focus on oxygen evolution reaction (OER) catalysis.  We will discuss our recent work investigating strategies such as alloying, catalyst-support design, as well as investigating pyrochlore-based OER catalysts.  For each system, our approach is a systematic design and investigation, seeking to uncover structural-activity relationships.

Reducing precious metal loading in electrochemical water splitting

ACS Fall 2021

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