Pd‐Nanocomposites Formed by Calcination of [Pd(2‐pymo)₂]_n Framework as Catalysts of Phenylacetylene Semihydrogenation in Water

Abstract

Abstract The novel Pd‐nanocomposites, fabricated via calcination of the MOF [Pd(2‐pymo) 2 ] n (2‐pymo=2‐pyrimidinolate), were used for the first time in the transfer hydrogenation of phenylacetylene with NaBH 4 . The presence of Pd NPs or PdO in the studied materials was evidenced by XPRD, Raman spectroscopy, XPS and HR‐TEM. Under mild reaction conditions, in water as a solvent, Pd‐nanocomposites, Pd/C PYMO and PdO/Pd/C PYMO , provided better catalytic results than the pristine [Pd(2‐pymo) 2 ] n , producing styrene with good selectivity. These two catalysts showed also good durability in subsequent reuses, while the productivity of PdO/C PYMO decreased after the second run.