Synergistic Effect of Cr3+ on Layered Double Hydroxide Supported Cu0 Nanoparticles for the Oxidation of Alcohols and Hydrocarbons

被引：9
作者：
Choudhary, Anu [1 ]
Sharma, Nitika [1 ]
Sharma, Chandan [1 ]
Jamwal, Babita [1 ]
Paul, Satya [1 ]
机构：
[1] Univ Jammu, Dept Chem, Jammu 180006, India
来源：
CHEMISTRYSELECT | 2019年 / 4卷 / 18期
关键词：
Alcohols; chromium(III) ions; copper nanoparticles; layered double hydroxide; oxidation; AEROBIC OXIDATION; HETEROGENEOUS CATALYST; COPPER NANOPARTICLES; SELECTIVE OXIDATION; GOLD NANOPARTICLES; EFFICIENT; HYDROGENATION; TEMPERATURE;
D O I：
10.1002/slct.201803829
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Chromium(III)-doped layered double hydroxide supported copper nanoparticles (Cr3+-Cu-0/LDH) has been prepared as an efficient and reusable catalyst using simple and versatile synthetic method. Effect of doping of Cr3+ to the layered double hydroxide supported Cu-0 nanoparticles was evaluated for the oxidation of alcohols and hydrocarbons by varying the amount of Cr3+ loading in the catalyst. The catalyst with Cu:Cr ratio= 1:1 afforded highest catalytic activity among the synthesized catalysts towards the oxidation using TBHP (tBuOOH) in aqueous medium and was structurally characterized by Fourier Transform Infrared Spectroscopy (FTIR), X-Ray Diffraction Spectroscopy (XRD), Field Emission Gun-Scanning Electron Microscopy (FEG-SEM), Energy-dispersive X-Ray Spectroscopy (EDX), High Resolution-Transmission Electron Spectroscopy (HR-TEM), Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES) and X-Ray Photoelectron Spectroscopy (XPS). The high activity and selectivity was assigned to the synergistic electronic interaction between copper(0) nanoparticles and chromium(III) ions based on experimental data and XPS results. Moreover, the high stability of Cu-0 and Cr3+ in the catalyst was attributed to the strong metal-support interactions, which make the catalyst recyclable upto five runs.
引用
收藏
页码：5276 / 5283
页数：8
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