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NMR‐Spektroskopie. In der Zuschrift auf S. 14478 ff. beschreiben C. R. Bowers, H. E. Hagelin‐Weaver et al., wie der Einbau von para‐H2 in Propen und Propan über oktaeder‐, würfel‐ oder stabförmigen CeO2‐Nanokristallen starke NMR‐Signale induziert.
Intense para‐hydrogen‐enhanced NMR signals are observed in the hydrogenation of propene and propyne over ceria nanocubes, nano‐octahedra, and nanorods. The well‐defined ceria shapes, synthesized by a hydrothermal method, expose different crystalline facets with various oxygen vacancy densities, which are known to play a role in hydrogenation and oxidation catalysis. While the catalytic activity of...
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