Highly efficient solvent-free aerobic oxidation of ethylbenzene over hybrid Zn-Cr layered double hydroxide/carbon nanotubes nanocomposite

被引：10
|
作者：
Zhao, Yingji [1 ]
Xie, Renfeng [1 ]
Lin, Yanjun [1 ]
Fan, Guoli [1 ]
Li, Feng [1 ]
机构：
[1] Beijing Univ Chem Technol, Beijing Adv Innovat Ctr Soft Matter Sci & Engn, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China
来源：
CATALYSIS COMMUNICATIONS | 2018年 / 114卷
基金：
国家重点研发计划; 中国国家自然科学基金;
关键词：
Zn-Cr layered double hydroxide; Carbon nanotubes; Aerobic oxidation; Alkylaromatics; Supported catalysts; GRAPHITIC CARBON NITRIDE; VAPOR-PHASE OXIDATION; SELECTIVE OXIDATION; MOLECULAR-OXYGEN; CATALYTIC PERFORMANCE; N-C; ACETOPHENONE; OXIDE; HYDROTALCITE; ALCOHOLS;
D O I：
10.1016/j.catcom.2018.06.008
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 new hybrid Zn-Cr layered double hydroxide/carbon nanotubes (ZnCr-LDH/CNTs) nanocomposite was fabricated and employed as a high performing and stable catalyst for aerobic oxidation of ethylbenzene (EB) into acetophenone (AP). Small-sized ZnCr-LDH nanocrystals could be highly dispersed and tightly anchored onto acid-treated CNTs, forming strong interactions between them. As-assembled ZnCr-LDH/CNTs exhibited an excellent catalytic performance with a high acetophenone selectivity of 93.7% at EB conversion of 54.2%, as well as a turnover number of 2532 mol/mol. Such unprecedented efficiency of ZnCr-LDH/CNTs originated from both highly dispersed active Cr species and strong interactions between ZnCr-LDH nanocrystals and the CNTs matrix.
引用
收藏
页码：65 / 69
页数：5
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