Cu-Schiff base complex grafted onto graphene oxide nanocomposite: Synthesis, crystal structure, electrochemical properties and catalytic activity in oxidation of olefins

被引：22

作者：

Rayati, Saeed ^{[1
]}

Khodaei, Elham ^{[1
]}

Shokoohi, Saeedeh ^{[1
]}

Jafarian, Majid ^{[1
]}

Elmi, Bahareh ^{[1
]}

Wojtczak, Andrzej ^{[2
]}

机构：

[1] KN Toosi Univ Technol, Dept Chem, POB 16315-1618, Tehran 15418, Iran

[2] N Copernicus Univ, Fac Chem, Gagarina 7, PL-87100 Torun, Poland

来源：

INORGANICA CHIMICA ACTA | 2017年 / 466卷

关键词：

Graphene oxide; Schiff base; Olefin; Oxidation; Crystal structure; EFFICIENT CATALYST; GREEN SYNTHESIS; EPOXIDATION; COPPER(II); STYRENE; PERFORMANCE; CHEMISTRY; ZEOLITE; ALKENES; CU(II);

D O I：

10.1016/j.ica.2017.07.013

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Copper(II) Schiff base complex has been immobilized onto graphene oxide (GO) via covalent bonding. The nanocomposite was characterized using powder X-ray diffraction (XRD), Fourier transform infrared (FT-IR) and UV-visible spectroscopies, transmission electron microscopy (TEM), scanning electron microscopy (SEM), thermo-gravimetric analysis (TGA) and the energy-dispersive X-ray spectroscopy (EDX). The amount of catalyst loading on the solid support was determined by atomic absorption spectroscopy. The thermogravimetric analysis (TGA) demonstrated that the nanocatalyst was stable up to almost 220 degrees C, exhibiting high thermostability. Highly active and selective catalyst was found with excellent turnover numbers (up to 47,000 for oxidation of styrene) for the epoxidation of olefins in ethanol using aqueous hydrogen peroxide as oxidant. It could be readily reused for successive ten times without discernible activity and selectivity deterioration, which displays potential for practical applications. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：520 / 528

页数：9

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