Synthesis and characterization of versatile MgO-ZrO2 mixed metal oxide nanoparticles and their applications

被引：140

作者：

Gawande, Manoj B. ^{[1
]}

Branco, Paula S. ^{[1
]}

Parghi, Kalpesh ^{[2
]}

Shrikhande, Janhavi J. ^{[2
]}

Pandey, Rajesh Kumar ^{[3
]}

Ghumman, C. A. A. ^{[4
]}

Bundaleski, N. ^{[4
]}

Teodoro, O. M. N. D. ^{[4
]}

Jayaram, Radha V. ^{[2
]}

机构：

[1] Univ Nova Lisboa, Fac Sci & Technol, Dept Chem, REQUIMTE, P-2829516 Lisbon, Portugal

[2] Inst Chem Technol, Dept Chem, Bombay, Maharashtra, India

[3] Marquette Univ, Dept Chem, Milwaukee, WI 53233 USA

[4] Univ Nova Lisboa, FCT, Dept Fis, Ctr Phys & Technol Res CeFITec, P-2829516 Caparica, Portugal

来源：

CATALYSIS SCIENCE & TECHNOLOGY | 2011年 / 1卷 / 09期

关键词：

AROMATIC NITRO-COMPOUNDS; CATALYTIC TRANSFER HYDROGENATION; N-BENZYLOXYCARBONYL DERIVATIVES; 1,5-BENZODIAZEPINE DERIVATIVES; CHEMOSELECTIVE REDUCTION; SELECTIVE REDUCTION; ALPHA; BETA-UNSATURATED CARBONYLS; KNOEVENAGEL CONDENSATION; EFFICIENT REAGENT; FACILE SYNTHESIS;

D O I：

10.1039/c1cy00259g

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A heterogeneous, versatile nano-magnesia-zirconia or MgO-ZrO2 (MZ) catalyst was prepared by an ultra dilution method. The as-synthesised catalyst was characterized by several analytical techniques such as XRD, particle size analysis, BET surface area, thermogravimetric analysis (TGA), differential thermal analysis (DTA), FT-IR spectroscopy, SEM (scanning electron microscope), TEM (transmission electron microscope) and XPS (X-ray fluorescence spectroscopy). The surface area is found to be 268 m(2)g(-1). The catalytic activity of MZ was tested for various important organic reactions such as cross-aldol condensation, N-benzyloxycarbonylation of amines, reduction of aromatic nitrocompounds, and synthesis of 1,5-benzodiazepines. It has been observed that for all reactions MZ shows a good catalytic activity. All corresponding products were obtained in good to excellent yield under mild conditions. The MgO-ZrO2 catalyst can be prepared from inexpensive precursors, has high surface area, and is reusable and recyclable for all reactions.

引用

页码：1653 / 1664

页数：12

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