Dalton Transactions p. 6368 - 6376 (2020)
Update date:2022-08-17
Topics:
Ding, Fu
Dragutan, Ileana
Dragutan, Valerian
Liu, Xue-Gui
Sun, Ya-Guang
Xiong, Gang
Yao, Shan-Xin
You, Li-Xin
Zhao, Bai-Bei
Pd nanoparticles were immobilized on a highly porous, hydrothermally stable Eu-MOFviasolution impregnation and H2reduction to yield a novel Pd?Eu-MOF nanocatalyst. This composite was characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive spectroscopy (EDS), inductively coupled plasma optical emission spectroscopy (ICP-OES), powder X-ray diffraction (PXRD) and X-ray photoelectron spectroscopy (XPS). Unprecedentedly, the Pd?Eu-MOF nanocatalyst could be applied with excellent results in two strikingly different, mechanistically distinct, reactionsi.e., Suzuki-Miyaura cross-coupling and cycloaddition of CO2to a range of epoxides. Under the best reaction conditions, 98-99% yields have been attained in both catalytic processes. Moreover, in either case the heterogeneous catalyst was easily recovered and efficiently reused for more than four cycles, indicating its high stability and reproducibility. PXRD, TEM and XPS measurements on the recycled catalyst confirmed that it maintained its original structure and morphology; no Pd NP agglomeration was observed.
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Doi:10.1016/0045-2068(74)90018-2
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