Palladium nanoparticles embedded in MOF matrices: Catalytic activity and structural stability in iodobenzene methoxycarbonylationстатья
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Дата последнего поиска статьи во внешних источниках: 11 апреля 2019 г.
Аннотация:This paper reports for the first time iodobenzene methoxycarbonylation over Pd-containing catalysts based on MOF materials differed in topology, texture properties and organic and inorganic building blocks: MIL-53(Al) (AlOHbdc, bdc = benzene-1,4-dicarboxylate), NH2-MIL-53(Al) (AlOHabdc, abdc=2-aminobenzene-1,4-dicarboxylate), NH2-MIL-101(Al) (Al(3)Oabdc)(3), and ZIF-8 (Zn(Melm)(2). Melm = 2-methylimidazolate). Low-loaded nanocatalysts (0.1-0.5 wt.% Pd) based on MIL-53(Al) and ZIF-8 demonstrated a superior activity as compared to those on conventional supports such as silica and alumina. The catalytic performance of the synthesized nanocatalysts is affected both by the MOF support nature and Pd loading. Another important factor governing the performance of the Pd/MOF catalysts is the preparation procedure of the metal-organic matrices which affects their crystal size and morphology. This effect was studied for ZIF-8 materials. (C) 2018 Published by Elsevier Ltd.