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Catalytic Properties of Alumina-Supported Ruthenium, Platinum, and Cobalt Nanoparticles towards the Oxidation of Cyclohexane to Cyclohexanol and Cyclohexanone

机译:氧化铝支持的钌,铂和钴纳米粒子朝环己烷氧化至环己醇和环己酮的催化性质

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摘要

A series of metal-loaded (Ru, Pt, Co) alumina catalysts were evaluated for the catalytic oxidation of cyclohexane using tertbutylhydroperoxide (TBHP) as oxidant and acetonitrile or acetic acid as solvent. These materials were prepared by the impregnation method and then characterized by Inductively Coupled Plasma-Optical Emission Spectroscopy (ICP-OES), H2 chemisorption, Fourier Transformed Infrared Spectroscopy (FTIR), High-Resolution Transmission Electron Microscopy (HRTEM), and X-ray Diffraction (XRD). All the prepared materials acted as efficient catalysts. Among them, Ru/Al2O3 was found to have the best catalytic activity with enhanced cyclohexane conversion of 36 %, selectivity to cyclohexanol and cyclohexanone of 96 % (57.6 mmol), and cyclohexane turnover frequency (TOF) of 288 h-1. Copyright © 2018 BCREC Group. All rights reservedReceived: 26th May 2017; Revised: 17th July 2017; Accepted: 18th July 2017; Available online: 22nd January 2018; Published regularly: 2nd April 2018How to Cite: Rekkab-Hammoumraoui, I., Choukchou-Braham, A. (2018). Catalytic Properties of Alumina-Supported Ruthenium, Platinum, and Cobalt Nanoparticles towards the Oxidation of Cyclohexane to Cyclohexanol and Cyclohexanone. Bulletin of Chemical Reaction Engineering & Catalysis, 13(1): 24-36 (doi:10.9767/bcrec.13.1.1226.24-35)
机译:评价一系列金属负载(Ru,Pt,Co)氧化铝催化剂,用于使用叔丁基酰氧化盐(TBHP)作为氧化剂和乙腈或乙酸作为溶剂的催化氧化环己烷。这些材料由浸渍方法制备,然后通过电感耦合等离子体 - 光发射光谱(ICP-OES),H2化学吸附,傅里叶变换的红外光谱(FTIR),高分辨率透射电子显微镜(HRTEM)和X射线进行特征衍射(XRD)。所有制备的材料都是有效催化剂。其中,发现Ru / Al2O3具有增强的环己烷转化率为36%,选择性至96%(57.6mmol)的选择性和环己酮和288h-1的环己烷周转频率(TOF)的最佳催化活性。版权所有©2018 BCRec组。所有权利保留:2017年5月26日;修订:2017年7月17日;接受:2017年7月18日;在线提供:2018年1月22日;定期出版:2018年4月2日举办:Rekkab-Hammoumraoui,I.,Choukchou-Braham,A.(2018)。氧化铝支持的钌,铂和钴纳米粒子掺往环己烷氧化至环己醇和环己酮的催化性能。化学反应工程和催化公报,13(1):24-36(DOI:10.9767 / BCRec.13.1.1226.24-35)

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