Gold nanoparticle-decorated graphene oxide: Synthesis and application in oxidation reactions under benign conditions

被引：62

作者：

Pocklanova, Radka ^{[1
]}

Rathi, Anuj K. ^{[1
]}

Gawande, Manoj B. ^{[1
]}

Datta, Kasibhatta Kumara Ramanatha ^{[1
,2
,3
]}

Ranc, Vaclav ^{[1
]}

Cepe, Klara ^{[1
]}

Petr, Martin ^{[1
]}

Varma, Rajender S. ^{[1
]}

Kvitek, Libor ^{[1
]}

Zboril, Radek ^{[1
]}

机构：

[1] Palacky Univ, Fac Sci, Reg Ctr Adv Technol & Mat, Dept Phys Chem, Slechtitelu 27, Olomouc 78371, Czech Republic

[2] SRM Univ, Res Inst, Kattankulathur 603203, India

[3] SRM Univ, Dept Chem, Kattankulathur 603203, India

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2016年 / 424卷

关键词：

Reduced graphene oxide; Gold nanocomposite; Recyclable catalysts; Oxidation reactions; Sustainable protocol; Heterogeneous catalysis; FACILE SYNTHESIS; CATALYTIC-OXIDATION; AEROBIC OXIDATION; SURFACTANT-FREE; GRAPHITE OXIDE; ETHYL BENZENE; REDUCTION; ACID; ESTERIFICATION; DERIVATIVES;

D O I：

10.1016/j.molcata.2016.07.047

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：

Gold nanoparticles (similar to 3 nm, 4 wt% Au) dispersed on reduced graphene oxide (Au/rGO) surface were prepared via the reduction of gold (III) chloride using sodium citrate on reduced graphene oxide support. The chemical, morphological, and size analyses of Au/rGO by XRD, XPS, TEM, HR-TEM/EDS, AAS, and Raman spectroscopy revealed that the hybrid material comprised of a well-defined rGO support decorated with gold nanoparticles. The ensuing catalyst was evaluated for the oxidation of ethyl benzenes (yields up to 95%) and oxidative esterification of aldehydes (73-97%) using oxygen as an environmentally friendly oxidant in good to excellent yields; reusable and recyclable catalyst displayed high activity without the use of toxic organic solvents. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：121 / 127

页数：7

共 65 条

[1] Oxidation of ethylbenzene to acetophenone by a Mn catalyst supported on a modified nanosized SiO2/Al2O3 mixed-oxide in supercritical carbon dioxide [J].