Facile synthesis of highly ordered mesoporous cobalt–alumina catalysts and their application in liquid phase selective oxidation of styrene

RSC Advances ◽  
2015 ◽  
Vol 5 (119) ◽  
pp. 98377-98390 ◽  
Author(s):  
Dahai Pan ◽  
Qian Xu ◽  
Zhaoyang Dong ◽  
Shuwei Chen ◽  
Feng Yu ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Selective Oxidation ◽  
Facile Synthesis ◽  
Assembly Method ◽  
Ordered Mesoporous ◽  
Alumina Catalysts

We illustrate the preparation of highly ordered mesoporous cobalt–alumina catalysts with highly homogeneously dispersed Co(ii) species via an evaporation-induced triconstituent cooperative co-assembly method.

Facile synthesis of highly ordered mesoporous chromium–alumina catalysts with improved catalytic activity and stability

2014 ◽  
Vol 29 (6) ◽  
pp. 811-819 ◽  
Author(s):  
Dahai Pan ◽  
Min Guo ◽  
Min He ◽  
Shuwei Chen ◽  
Xu Wang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Facile Synthesis ◽  
Ordered Mesoporous ◽  
Image Position ◽  
Alumina Catalysts

Abstract

scholarly journals Facile synthesis of ordered mesoporous zinc alumina catalysts and their dehydrogenation behavior

RSC Advances ◽  
2019 ◽  
Vol 9 (17) ◽  
pp. 9828-9837 ◽  
Author(s):  
Ming Cheng ◽  
Huahua Zhao ◽  
Jian Yang ◽  
Jun Zhao ◽  
Liang Yan ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Facile Synthesis ◽  
Ordered Mesoporous ◽  
Alumina Catalysts

Facile synthesis of ordered mesoporous zinc alumina catalysts that exhibited great catalytic activity (45.0% isobutane conversion, 86.7% isobutene selectivity) and stability.

scholarly journals Metal-Organic Frameworks in Oxidation Catalysis with Hydrogen Peroxide

Catalysts ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 283
Author(s):  
Oxana Kholdeeva ◽  
Nataliya Maksimchuk
Keyword(s):  
Hydrogen Peroxide ◽  
Liquid Phase ◽  
Selective Oxidation ◽  
Metal Organic Frameworks ◽  
Short Review ◽  
Catalytic Performance ◽  
Oxidation Catalysis ◽  
Catalyst Stability ◽  
Aqueous Hydrogen Peroxide ◽  
Metal Organic

In recent years, metal–organic frameworks (MOFs) have received increasing attention as selective oxidation catalysts and supports for their construction. In this short review paper, we survey recent findings concerning use of MOFs in heterogeneous liquid-phase selective oxidation catalysis with the green oxidant–aqueous hydrogen peroxide. MOFs having outstanding thermal and chemical stability, such as Cr(III)-based MIL-101, Ti(IV)-based MIL-125, Zr(IV)-based UiO-66(67), Zn(II)-based ZIF-8, and some others, will be in the main focus of this work. The effects of the metal nature and MOF structure on catalytic activity and oxidation selectivity are analyzed and the mechanisms of hydrogen peroxide activation are discussed. In some cases, we also make an attempt to analyze relationships between liquid-phase adsorption properties of MOFs and peculiarities of their catalytic performance. Attempts of using MOFs as supports for construction of single-site catalysts through their modification with heterometals will be also addressed in relation to the use of such catalysts for activation of H2O2. Special attention is given to the critical issues of catalyst stability and reusability. The scope and limitations of MOF catalysts in H2O2-based selective oxidation are discussed.

Catalyzed Oxidation of Cyclohexane over Co-Bi2(MoO4)3 Catalysts

2012 ◽  
Vol 550-553 ◽  
pp. 354-357
Author(s):  
Su Ling Gao ◽  
Tai Xuan Jia ◽  
Zi Li Liu
Keyword(s):  
Experimental Data ◽  
Liquid Phase ◽  
Selective Oxidation ◽  
Atomic Ratio ◽  
Precipitation Method ◽  
Micro Structure ◽  
Cooperative Effects ◽  
Catalyzed Oxidation

The effect of catalyst on the performance of liquid-phase selective oxidation of cyclohexane as probe reaction over Co-Bi2(MoO4)3 prepared by precipitation method was investigated. The catalyst evaluation results show that the optimum catalyst atomic ratio is n(Mo):n(Bi):n(Co)=1.5:1:0.2 with high selecivity under certain conversion. Meanwhile selective oxidation of Bi2(MoO4)3 was slowed down, selecivity of cyclohexanone and cyclohexanol reached 74.1%, 22.2% respectively.The main composition of the catalyst is Bi2(MoO4)3. Co-Bi2(MoO4)3 had new catalyst sites with Bi3+, Mo6+ and Co2+ having a cooperative effects during oxidation of cyclohexane. Under this condition, selecivity of cyclohexanone improved greatly. Micro-structure and essence disciplinarian of Co-Bi2(MoO4)3 were disclosed by XRD and FTIR. This study could provide experimental data for the technical reform of industry equipment.

Facile Synthesis of Hierarchical Alumina Monoliths with Tubular Macropores and Ordered Mesoporous Walls

2010 ◽  
Vol 39 (9) ◽  
pp. 980-982 ◽  
Author(s):  
Kuibao Zhang ◽  
Zhengyi Fu ◽  
Jinyong Zhang ◽  
Tadachika Nakayama ◽  
Koichi Niihara ◽  
...  
Keyword(s):  
Facile Synthesis ◽  
Ordered Mesoporous

Facile Synthesis of Ag-Hollandite Nanofibers and Their Catalytic Activity for Ethanol Selective Oxidation

2007 ◽  
Vol 28 (12) ◽  
pp. 1034-1036 ◽  
Author(s):  
Junli CHEN ◽  
Juan LI ◽  
Qiying LIU ◽  
Xiumin HUANG ◽  
Wenjie SHEN
Keyword(s):  
Catalytic Activity ◽  
Selective Oxidation ◽  
Facile Synthesis

Facile synthesis of ordered mesoporous CaO-ZrO2 composite with mild conditions

2016 ◽  
Vol 168 ◽  
pp. 214-217 ◽  
Author(s):  
Jiebo Chen ◽  
Zhuyu Cai ◽  
Xinxiang Chen ◽  
Xiaohai Zheng ◽  
Ying Zheng
Keyword(s):  
Facile Synthesis ◽  
Mild Conditions ◽  
Ordered Mesoporous
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