MoO 3 @SiO 2 nanoreactors: Synthesis with a thermal decomposition strategy and catalysis on alkenes epoxidation

Shen, Yirui; Jiang, Pingping; Wang, Yingchun; Bian, Guo‐Qing; Wai, Phyu Thin; Dong, Yuming

doi:10.1016/j.jssc.2018.05.005

Cited by 21 publications

(12 citation statements)

References 45 publications

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“…Molybdenum has been incorporated into supports (e.g., molecule sieves, silicates, etc.) by various strategies such as wet or dry impregnation [64], thermal spreading [65], post-synthetic surface grafting protocol and direct synthesis methodology [66].…”

Section: Silica Supported Molybdenum-based Catalystsmentioning

confidence: 99%

Recent Progress in Application of Molybdenum-Based Catalysts for Epoxidation of Alkenes

et al. 2019

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Epoxides are important industrial intermediates applied in a variety of industrial processes. During the production of epoxides, catalysts have played an irreplaceable and unique role. In this review, the historic progress of molybdenum-based catalysts in alkene epoxidation are covered and an outlook on future challenge discussed. Efficient catalysts are demonstrated including soluble molybdenum complexes, polyoxometalates catalysts, molybdenum-containing metal organic frameworks, silica supported molybdenum-based catalysts, polymer supported molybdenum-based catalysts, magnetic molybdenum-based catalysts, hierarchical molybdenum-based catalysts, graphene-based molybdenum containing catalysts, photocatalyzed epoxidation catalysts, and some other systems. The effects of different solvents and oxidants are discussed and the mechanisms of epoxidation are summarized. The challenges and perspectives to further enhance the catalytic performances in alkenes epoxidation are presented.

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Section: Silica Supported Molybdenum-based Catalystsmentioning

confidence: 99%

Recent Progress in Application of Molybdenum-Based Catalysts for Epoxidation of Alkenes

et al. 2019

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“…On the other hand, the modication of methods comprises the development of processes by using alternative energy resources or improvement of yield with synergistic effects such as mixing program, 22 ultrasonic irradiation, 47,62 microwave technology, [81][82][83][84][85][86][87] high temperature, 88 and hydrodynamic cavitation. 89 Our group has studied amphiphilic phosphotungstatepaired ionic copolymer 90 and molybdenum-based catalysts [91][92][93][94][95][96][97][98] on various supports for the epoxidation of different alkenes and good results were obtained. Moreover, recent developments in the application of molybdenum-based catalysts for epoxidation have been reviewed as well.…”

Section: Introductionmentioning

confidence: 99%

Catalytic developments in the epoxidation of vegetable oils and the analysis methods of epoxidized products

et al. 2019

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“…The chemical structures of the Mo 7 building block and its assemblies were investigated by Fourier-transform infrared (FT-IR) spectroscopy, Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS) (Figure ). The FT-IR spectra of Mo 7 exhibit characteristic bands at 872 and 838 cm –1 , which are assigned to symmetric stretching of the octahedral MoO 6 subunits and symmetric/antisymmetric stretching vibrations of [Mo 7 O 24 ] 6– , respectively. − Additionally, bands appearing at 895 and 920 cm –1 are associated with the stretching vibration of Mo–O–Mo and terminal Mo–O t bonds, while the peaks at 1640, 1402, and 636 cm –1 are related to free H 2 O molecule, NH 4 + , and H 2 O vibration modes, respectively . For Mo 7 -Co and Mo 7 -Co-CTA assemblies, the stretching vibration bands of MoO 6 and Mo 7 O 24 6– remain unchanged, indicative of an intact structure of the Mo 7 constituents.…”

Section: Resultsmentioning

confidence: 99%

Spatially Guided Assembly of Polyoxometalate Superlattices and Their Derivatives as High-Power Sodium-Ion Battery Anodes

Chen

Bai

et al. 2022

ACS Nano

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The use of polyoxometalate clusters (POMs) with multitudinous structures and surface properties as building blocks has sparked the development of cluster-assembled materials with many prospective applications. In comparison to classic molecules and assembly processes, control over the steric interactions and linkage of large POMs to achieve superlattices with multiple levels of organization remains a great challenge. This work presents a universal approach to modulate the spatial coordination behavior and configurations, and achieves a class of cluster superlattice architectures formed by linear alignment and two-dimensional arrangement of POM units. The formation mechanism is explained as a stepwise co-assembly pathway in which POMs can intervene and dictate a typical stripping–restacking combination mode with the lamellar mediator. These cluster superlattices with long-range POMs ordering impart distinct merits to their derivatives by sulfuration, for which we demonstrate the substantially promoted power and cycling life of these POM derivatives applied as sodium-ion battery anodes.

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MoO 3 @SiO 2 nanoreactors: Synthesis with a thermal decomposition strategy and catalysis on alkenes epoxidation

Cited by 21 publications

References 45 publications

Recent Progress in Application of Molybdenum-Based Catalysts for Epoxidation of Alkenes

Recent Progress in Application of Molybdenum-Based Catalysts for Epoxidation of Alkenes

Catalytic developments in the epoxidation of vegetable oils and the analysis methods of epoxidized products

Spatially Guided Assembly of Polyoxometalate Superlattices and Their Derivatives as High-Power Sodium-Ion Battery Anodes

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