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Liandi Li, Dr. Bingsen Zhang, Dr. Edward Kunkes, Dr. Karin Föttinger, Dr. Marc Armbrüster, Dr. Dang Sheng Su, Dr. Wei Wei, Prof. Dr. Robert Schlögl and Dr. Malte Behrens Ga-Pd/Ga2O3 Catalysts: The Role of Gallia Polymorphs, Intermetallic Compounds, and Pretreatment Conditions on Selectivity and Stability in Different Reactions ChemCatChem 4

Article first published online: 30 AUG 2012 | DOI: 10.1002/cctc.201200268

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Pretty polymorph: Pd/Ga2O3 catalysts consisting of metallic nanoparticles on porous polymorphs of Ga2O3 (α-, β-, and γ-Ga2O3) are synthesized by co-precipitation of Pd and Ga. The effects of formation of Ga-Pd intermetallic compounds (IMCs) in methanol steam reforming, hydrogenation of acetylene, and methanol synthesis from CO and CO2 are studied. IMC formation promotes selectivity in the catalytic hydrogenation of C2H2 and CO2, but not of CO.

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