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of CRADA Work: This CRADA will facilitate technology maturation for NREL-developed ALD-coated catalyst materials that are tailored for durability during harsh biomass conversion chemistries. This project will address optimizing process parameters for scale-up of Al2O3 ALD-coated catalysts, demonstrating ALD-coated catalyst performance for muconic acid hydrogenation, and validating economic models that project significant cost benefits for ALD-enhanced catalytic processes. This work will strengthen private-public partnerships in the area of advanced catalyst manufacturing for energy-related technology. Critical information will be collected to elevate the Technology Readiness Level and increase our competitiveness for cooperative R&D agreements and licensing. Success of this work will be crosscutting as it can facilitate advanced catalyst development for both renewable and conventional processes. Summary of Research Results: Task 1: Synthesize and characterize scaled Al2O3 ALD-coated Pd catalysts at the kilogram scale. ALD catalyst coating formulations developed by NREL at the 100-mg scale were scaled by Forge nano by three-orders of magnitude to the 100-g scale. Initially, 1 kilogram of 1.0 wt% Pd on Al2O3 catalyst powder and 1 kilogram of commercial TiO2 catalyst support pellets were obtained from Alfa Aesar. The commercial TiO2 supports were not available with Pd, which required in-house loading of Pd at NREL to produce 100 grams of 0.5 wt% Pd/TiO2 powder catalyst. Multiple batches of each catalyst were coated with low-cycle Al2O3 ALD with trimethyl aluminum (TMA) and water precursors by Forge Nano, with samples ranging from the 10-gramto 100-gram scale. Replicate ALD coatings runs were performed to allow for measuring coating reproducibility. The

osti oai (u.s. department of energy office of scientific and technical information)

Spatial Atomic Layer Deposition to Scale Manufacturing of Robust Catalysts for Biomass Conversion Applications: Cooperative Research and Development Final Report, CRADA Number CRD-17-715