Catalytic performance of Mn3O4 and Co3O4 nanocrystals prepared by sonochemical method in epoxidation of styrene and cyclooctene

被引：80
作者：
Askarinejad, Azadeh [1 ]
Bagherzadeh, Mojtaba [2 ]
Morsali, Ali [1 ]
机构：
[1] Tarbiat Modares Univ, Dept Chem, Fac Sci, Tehran, Iran
[2] Sharif Univ Technol, Dept Chem, Tehran, Iran
来源：
APPLIED SURFACE SCIENCE | 2010年 / 256卷 / 22期
关键词：
Epoxidation; Styrene; Cyclooctene; Co3O4 and Mn3O4 nanocatalysts; Sonochemistry; SPINEL CO3O4; SULFIDE NANOPARTICLES; SURFACE SYNTHESIS; COBALT OXIDE; THIN-FILMS; OXIDATION; MECHANISM; ALKENES; MNOOH; NITROSOBENZENE;
D O I：
10.1016/j.apsusc.2010.04.069
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 simple sonochemical method was developed to synthesis uniform sphere-like Co3O4 and Mn3O4 nanocrystals. Epoxidation of styrene and cyclooctene by anhydrous tert-butyl hydroperoxide over the prepared Co3O4 and Mn3O4 nanocatalysts was investigated. The results of conversion activity were compared with bulk Co3O4 and Mn3O4. Under optimized reaction conditions, the nanocatalysts showed a superior catalytic performance as compared to the bulk catalysts. Powder X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and BET surface area, were used to characterize and investigate the nanocatalysts. (C) 2010 Elsevier B.V. All rights reserved.
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页码：6678 / 6682
页数：5
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