Binuclear furanyl-azine metal complexes encapsulated in NaY zeolite as efficiently heterogeneous catalysts for phenol hydroxylation

• Type: Article in International Scientific Journal
• Date: 2020

Authors

I. Kuzniarska-Biernacka (Author) Other; Manuela M. Raposo (Author) Other; Rosa M. F. Batista (Author) Other; Olívia S. G. P. Soares (Author) FEUP; Manuel Fernando R. Pereira (Author) Other; Píer Parpot (Author) Other; César J. S. Oliveira (Author) Other; Elzbieta Jartych (Author) Other; António M. Fonseca (Author) Other; Isabel C. Neves (Author) Other; Elzbieta Skiba (Author) Other

Journal

Title: Journal of Molecular Structure

Vol. 1206

ISSN: 0022-2860

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 4 Citations

Scopus - 8 Citations

Other information

Authenticus ID: P-00R-KFX

DOI: 10.1016/j.molstruc.2020.127687

Abstract (EN): Two different methods A and B were used for preparing binuclear furanyl-azine metal complexes encapsulated in NaY zeolite. These new heterogeneous catalysts based on Fe(II) or Cu(II) complexes with a metal/ligand molar ratio of 2:1, were characterized by different spectroscopic techniques and chemical analysis which confirm the presence of the metal complexes inside the supercages of the zeolite. Mossbauer spectroscopy technique analysis confirms the presence of the Fe3+- complexes in octahedral coordination. The new heterogeneous catalysts were catalytic evaluated by phenol hydroxylation and compared with the encapsulated metal furanyl-azine complexes in NaY zeolite. The zeolite themselves do not present any activity and the presence of the metal complexes improve their activity. All heterogeneous catalysts enhance higher conversion of phenol to catechol.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 10