Increased selectivity for allylic oxidation of cyclohexene using TiO2 modified V2O5/MoO3 catalysts

Yang Guoqiang; Huff Matthew D.; Du Huiyuan; Zhang Zhibing; Lei Yu

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Increased selectivity for allylic oxidation of cyclohexene using TiO2 modified V2O5/MoO3 catalysts

机译：使用TiO 2改性的V2O5 / mOO3催化剂增加环己烯烯丙基氧化的选择性

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摘要

V2O5 and MoO3 mixed oxides supported by SiO2 were studied as the catalysts in the aqueous phase allylic oxidation of cyclohexene to unsaturated alcohol 2-cyclohexene-l-ol and unsaturated ketone 2-cyclohexene-1-one. The additional layer of TiO2 deposited by atomic layer deposition significantly suppresses the epoxidation pathway and the formation of cyclohexane oxide and cyclohexane-1, 2-diol. X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and transmission electron microscopy (TEM) were used to study the relationship between the structure of the catalysts and their catalytic performance. The effects on the catalytic activity of different solvent, hydrogen peroxide to cyclohexene ratio, and reusability were investigated.

机译：研究了以SiO2为载体的V2O5和MoO3混合氧化物在水相烯丙基氧化环己烯制备不饱和醇2-环己烯-l-醇和不饱和酮2-环己烯-1-酮中的催化性能。通过原子层沉积法沉积的额外TiO2层显著抑制环氧化途径以及环己烷氧化物和环己烷-1,2-二醇的形成。利用X射线衍射（XRD）、X射线光电子能谱（XPS）和透射电子显微镜（TEM）研究了催化剂的结构与催化性能之间的关系。考察了不同溶剂、双氧水与环己烯的比例及重复使用对催化活性的影响。

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来源
《Catalysis Communications》 |2017年第1期|共6页
作者
Yang Guoqiang; Huff Matthew D.; Du Huiyuan; Zhang Zhibing; Lei Yu;
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作者单位

Nanjing Univ Sch Chem &

Chem Engn Nanjing 210093 Jiangsu Peoples R China;

Univ Alabama Dept Chem &

Mat Engn Huntsville AL 35899 USA;

Nanjing Univ Sch Chem &

Chem Engn Nanjing 210093 Jiangsu Peoples R China;

Nanjing Univ Sch Chem &

Chem Engn Nanjing 210093 Jiangsu Peoples R China;

Univ Alabama Dept Chem &

Mat Engn Huntsville AL 35899 USA;

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原文格式 PDF
正文语种 eng
中图分类物理化学（理论化学）、化学物理学;
关键词
Cyclohexene; Allylic oxidation; Epoxidation; Atomic layer deposition; Mixed metal oxides; Zeolite;

机译：环己烯;烯丙基氧化;环氧化;原子层沉积;混合金属氧化物;沸石;

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专利

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2. WORKING MECHANISM OF OXIDE CATALYSTS IN THE PARTIAL OXIDATION OF METHANE TO FORMALDEHYDE .2. REDOX PROPERTIES AND REACTIVITY OF SIO2, MOO3/SIO2, V2O5/SIO2, TIO2, AND V2O5/TIO2 SYSTEMS [J] . Arena F., Parmaliana A., Giordano N. Journal of Catalysis . 1997,第1期

机译：甲烷部分氧化成甲醛中氧化物催化剂的工作机理.2。 SIO2，MOO3 / SIO2，V2O5 / SIO2，TIO2和V2O5 / TIO2系统的氧化还原特性和反应性
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机译：甲烷部分氧化成甲醛中氧化物催化剂的工作机理1。 SIO2，MOO3 / SIO2，V2O5 / SIO2，TIO2和V2O5 / TIO2系统的催化行为
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机译：碱性促进剂对丙烷氧化脱氢和异丙醇分解中V2O5 / TIO2和MOO3 / TIO2催化剂催化活性的影响
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机译：TI / SIO2支持的PD / AU催化剂，用于在环己烯选择性氧化为环己烯氧化物的过程中将H2直接氧化为H2O2
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机译：沉积在微通道微反应器中的纳米级铂和铁钴催化剂，用于环己烯的加氢和脱氢，一氧化碳的选择性氧化和费-托工艺制备成高级烷烃。
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机译：半透明倒置聚合物太阳能电池在FTO和MoO3 / Ag / MoO3透明电极上采用溶胶-凝胶衍生的TiO2电子选择层
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机译：混合Bi2O3，moO3和V2O5催化剂对丙烯选择性氧化的协同作用
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机译：改性混合氧化物催化剂用于甲烷选择氧化。 FinalReport，1990年9月1日至1993年8月31日

Increased selectivity for allylic oxidation of cyclohexene using TiO2 modified V2O5/MoO3 catalysts

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