One-pot synthesis of cyclohexanone oxime from cyclohexanol on a single site multifunctional catalyst: H3PW12O40 incorporated on exfoliated montmorillonite

被引：8
作者：
Wang, Hefang [1 ]
Zhang, Li [1 ]
Yang, Yongfang [1 ]
Fang, Luping [1 ]
Wang, Yanji [1 ]
机构：
[1] Hebei Univ Technol, Sch Chem Engn & Technol, Tianjin 300130, Peoples R China
来源：
CATALYSIS COMMUNICATIONS | 2016年 / 87卷
关键词：
One-pot synthesis; Cyclohexanone oxime; Cyclohexanol; Multifunctional catalyst; Exfoliated montmorillonite; SILICA-PILLARED CLAY; 12-TUNGSTOPHOSPHORIC ACID; DODECATUNGSTOPHOSPHORIC ACID; PHOSPHOTUNGSTIC ACID; HETEROPOLY ACID; ZEOLITE-Y; AMMOXIMATION; PERFORMANCE; OXIDATION; IMMOBILIZATION;
D O I：
10.1016/j.catcom.2016.07.020
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：
Exfoliated montmorillonite (ex-MMT) incorporated with H3PW12O40 (HPW) was prepared by introducing HPW to cetyltrimethylammonium bromide modified MMT. HPW-ex-MMT was characterized by XRD, FT-IR, TGA, N-2 adsorption-desorption, UV-vis DRS, P-31 MAS NMR, contact angle and SEM. CTAB played a decisive role in the introduction and dispersion of HPW on ex-MMT. HPW-ex-MMT exhibited good catalytic performance in one-pot synthesis of oxime from alcohol with aqueous ammonia and hydrogen peroxide. The high catalytic performance is attributed to highly dispersed HPW over ex-MMT and highly hydrophobic surface of 20% HPW-ex-MMT. The catalyst could be recovered and reused several times without significant deactivation of catalytic performance. (C) 2016 Published by Elsevier B.V.
引用
收藏
页码：27 / 31
页数：5
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