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author:

Li, Pan (Li, Pan.) [1] | Li, Angxi (Li, Angxi.) [2] | Ruan, Renjie (Ruan, Renjie.) [3] | Guo, Yingxiong (Guo, Yingxiong.) [4] | He, Qian (He, Qian.) [5] | Zou, Wenhong (Zou, Wenhong.) [6] | Hou, Linxi (Hou, Linxi.) [7]

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EI

Abstract:

An eco-friendly strategy for the synthesis of highly ordered meso- and microporous zeolites is required both in academia and industry. Therefore, asymmetrical anionic-nonionic gemini surfactants, polyoxyethylene laurinol ether sodium sulfoitaconate (Gemini-n), have been designed, synthesized and used in the directed synthesis of hierarchical ZSM-5 zeolites (HZSM-5) by imparting substantial mesoporosity. The hydrothermal temperature, the amount of gemini surfactants and the crystallization time strongly affected the crystallization degree and the textural properties of the HZSM-5. The tune of the porous size distribution (microporous to mesoporous) can be obtained by varying the number of the ethylene oxide units in the gemini surfactants. Besides, the use of these novel anionic-nonionic gemini surfactants is an effective strategy to avoid phase-separation. The existence of abundant hydroxyl groups on the surface of HZSM-5 was used to immobilize molybdenum compound by the stable Mo−O bond. The complex with abundant intercrystal mesopores exhibited superior catalytic performance with high yield and selectivity for the epoxidation reactions of alkenes as compared to the conventional ZSM-5. Moreover, the complex presented high catalytic ability after been reused for five times. © 2021 Wiley-VCH GmbH

Keyword:

Anionic surfactants Epoxidation Ethylene Microporosity Molybdenum compounds Nonionic surfactants Phase separation Polyethylene oxides Synthesis (chemical) Zeolites

Community:

  • [ 1 ] [Li, Pan]College of Chemical Engineering, Fuzhou University, Xueyuan Road No. 2, Fuzhou; 350116, China
  • [ 2 ] [Li, Angxi]Engineering Research Center for Metal Rubber, School of Mechanical Engineering and Automation, Fuzhou University, Xueyuan Road No. 2, Fuzhou; 350116, China
  • [ 3 ] [Ruan, Renjie]College of Chemical Engineering, Fuzhou University, Xueyuan Road No. 2, Fuzhou; 350116, China
  • [ 4 ] [Guo, Yingxiong]College of Chemical Engineering, Fuzhou University, Xueyuan Road No. 2, Fuzhou; 350116, China
  • [ 5 ] [He, Qian]College of Chemical Engineering, Fuzhou University, Xueyuan Road No. 2, Fuzhou; 350116, China
  • [ 6 ] [Zou, Wenhong]College of Chemical Engineering, Fuzhou University, Xueyuan Road No. 2, Fuzhou; 350116, China
  • [ 7 ] [Hou, Linxi]College of Chemical Engineering, Fuzhou University, Xueyuan Road No. 2, Fuzhou; 350116, China

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Source :

ChemCatChem

ISSN: 1867-3880

Year: 2021

Issue: 20

Volume: 13

Page: 4442-4452

5 . 4 9 7

JCR@2021

3 . 8 0 0

JCR@2023

ESI HC Threshold:117

JCR Journal Grade:2

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 2

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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