Synthesis of anatase-free nano-sized hierarchical TS-1 zeolites and their excellent catalytic performance in alkene epoxidation

Zhang, Tianjun; Chen, Xiaoxin; Chen, Guangrui; Chen, Mengyang; Bai, Risheng; Jia, Mingjun; Yu, Jihong

doi:10.1039/c8ta01439f

Cited by 144 publications

(84 citation statements)

References 40 publications

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“…Epoxides are essential raw materials in the production of fine chemicals, such as surfactants, epoxy resins, paints as well as vital intermediates in organic synthesis [1][2][3][4]. Epoxidation of alkenes has been an important main route to produce epoxides and has attracted a lot of researchers' attention.…”

Section: Introductionmentioning

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: Introductionmentioning

confidence: 99%

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

et al. 2019

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“…Meanwhile, it should be noted that the extra-framework titanium species would cause the non-catalytic decomposition of H 2 O 2 oxidant and are harmful to the catalytic oxidation reactions. 20 As suggested by the above UV-vis results, the elimination of extra-framework Ti species also contributes to the activity enhancement of sample nanoTS-1_D. In addition, recycling experiments were performed to verify the catalytic stability of synthesized nanoTS-1_D.…”

Section: Catalytic Performancementioning

confidence: 73%

“…19 Very recently, Yu et al prepared anatase-free nanosized hierarchical TS-1 zeolites by using Triton X-100 as mesoporous template under rotational crystallization conditions, which exhibits high catalytic performance in the alkene epoxidation reactions, e.g., 1-hexene. 20 However, all these processes involve a large amount of commercial or home-made mesoporous template agents, which not only increase the cost of synthesis, but also result in the signicant emission of greenhouse gas during the subsequent template elimination. On the other hand, as an alternative, post-synthesis demetallation through acid/alkali/steaming treatment or a combined process has been developed to be a general and facile approach for the preparation of aluminosilicate hierarchical zeolites.…”

Section: Introductionmentioning

confidence: 99%

A large-surface-area TS-1 nanocatalyst: a combination of nanoscale particle sizes and hierarchical micro/mesoporous structures

Cui

et al. 2019

RSC Adv.

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“…[ 130 ] TS‐1 zeolites have proven to be effective heterogeneous catalysts for the epoxidation reactions and extensive research effort has been extended toward the effective control of product selectivity. [ 73,89,116,130–132 ]…”

Section: Catalytic Reactions Exploiting Hierarchical Ts‐1 Zeolitesmentioning

confidence: 99%

Creation of Hierarchical Titanosilicate TS‐1 Zeolites

Bai

Song

Bai

et al. 2020

Adv Materials Inter

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Hierarchical TS‐1 zeolites that possess at least two levels of porosities have aroused growing interest in the past years. The enhanced mass transfer efficiency and increased accessibility of Ti active sites in the hierarchical TS‐1 zeolites greatly improve the catalytic performance by overcoming the steric and diffusional problems. In this review, recent important progress in the construction of hierarchical TS‐1 zeolites is presented, including mesoporogen, mesoporogen‐free, and demetallization strategies. Effective characterization methods for the Ti species and the hierarchical zeolite structures are described. The impacts of hierarchical structures on the creation of active Ti species and improvement of catalytic performances in the oxidative desulfurization and epoxidation reactions are highlighted. Finally, current challenges and future development perspectives for preparing hierarchical TS‐1 zeolite catalysts are addressed.

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Synthesis of anatase-free nano-sized hierarchical TS-1 zeolites and their excellent catalytic performance in alkene epoxidation

Abstract: The addition of Triton X-100 slows down the crystallization rate of TS-1, while the rota-crystallization accelerates the incorporation rate of Ti.

Cited by 144 publications

References 40 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

A large-surface-area TS-1 nanocatalyst: a combination of nanoscale particle sizes and hierarchical micro/mesoporous structures

Creation of Hierarchical Titanosilicate TS‐1 Zeolites

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