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DOE OSTI · 1963502

Enabling Efficient Water Splitting with Advanced Materials Designed for High pH Membrane Interface

Mukerjee, Sanjeev·Kendrick, Ian·Jia, Qingying·Pann, Serge·Sun, Qiang·Liu, Ershuai·Yan, Yushan·Rojas-Carbonell, Santiago·Wang, Lan·De Castro, Emory·Pavlicek, Ryan·Mauger, Scott·Bender, Guido·Pivovar, Bryan·Ulsh, Michael·Jones, Reese·Foster, Michael·Weber, Adam·Kusoglu, Ahmet
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Abstract

This project was focused on developing the durable, high-performance materials and interfaces for advanced water splitting, enabling a clear pathway for achieving <$2/Kg H2 (on scale) with efficiency of 43 kWh/kg H 2 via anion exchange membrane (AEM)-based electrolysis. We aimed to advance these final goals via an improved fundamental understanding of both hydrogen and oxygen evolution reactions (HER/OER) leading to novel platinum group metal (PGM)-free catalyst materials in conjunction with critical improvements in membrane and ionomers and gas evolution electrodes with corresponding characterization and testing. Northeastern University (NU) lead this effort focusing on catalyst development and characterization (both in situ and ex situ) while project partners lead improvements in ionomer and membrane materials and will aid in the development of specialized electrode and membrane electrode assemblies. In addition, close collaboration occured with the HydroGEN Energy Materials Network (EMN) National Laboratory consortium including efforts related to use of advanced ionomers, durability protocols and validation of electrolyzer materials (e.g. NREL), multiscale modeling and computation (e.g. LBNL), and molecular dynamics (MD) simulations of the membrane catalyst interface (e.g. SNL). The interactions with HydroGEN included exchange of data and materials as needed to facilitate project success.

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08 HYDROGEN25 ENERGY STORAGE36 MATERIALS SCIENCE37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRYcatalysiselectrolysisheterogeneous catalysthydrogenin situ and operando spectroscopyionomer

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Mukerjee, Sanjeev, Kendrick, Ian, Jia, Qingying, Pann, Serge, Sun, Qiang, Liu, Ershuai, Yan, Yushan, Rojas-Carbonell, Santiago, Wang, Lan, De Castro, Emory, Pavlicek, Ryan, Mauger, Scott, Bender, Guido, Pivovar, Bryan, Ulsh, Michael, Jones, Reese, Foster, Michael, Weber, Adam, Kusoglu, Ahmet. 2021-09-30. Enabling Efficient Water Splitting with Advanced Materials Designed for High pH Membrane Interface. https://doi.org/10.2172/1963502

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