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

Changlin Du; Nan Cui; Linghao Li; Zile Hua; Jianlin Shi

doi:10.1039/C9RA00124G

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

Changlin Du, Nan Cui, Linghao Li, Zile Hua, Jianlin Shi

Research output: Contribution to journal › Article › peer-review

26 Scopus citations

Abstract

By a simple sequent process of dry-gel steam-assisted crystallization and following a top-down alkali-etching treatment, hierarchically structured TS-1 nanozeolites (nanoTS-1_D) with abundant micro/mesopores have been synthesized for the first time, and they exhibit remarkably high specific surface area of 606 m² g⁻¹ and pore volume of 0.86 cm³ g⁻¹. Characterization by XRD, FTIR, UV-vis and EM confirm the exclusive incorporation of titanium species in zeolite frameworks. More importantly, compared with the microporous TS-1 nanocrystal material with identical particle sizes of 80 nm (nanoTS-1) and submicrometer-sized mesoporous TS-1 material (mesoTS-1), here the reported nanoTS-1_D catalyst shows greatly improved performance in the model reaction of 1-hexene epoxidation. 40.9% olefin conversion and 96.3% epoxide selectivity are achieved and its high stability is verified by the 6 recycling-regeneration tests.

Original language	English
Pages (from-to)	9694-9699
Number of pages	6
Journal	RSC Advances
Volume	9
Issue number	17
DOIs	https://doi.org/10.1039/C9RA00124G
State	Published - 2019
Externally published	Yes

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

abstract = "By a simple sequent process of dry-gel steam-assisted crystallization and following a top-down alkali-etching treatment, hierarchically structured TS-1 nanozeolites (nanoTS-1\_D) with abundant micro/mesopores have been synthesized for the first time, and they exhibit remarkably high specific surface area of 606 m2 g−1 and pore volume of 0.86 cm3 g−1. Characterization by XRD, FTIR, UV-vis and EM confirm the exclusive incorporation of titanium species in zeolite frameworks. More importantly, compared with the microporous TS-1 nanocrystal material with identical particle sizes of 80 nm (nanoTS-1) and submicrometer-sized mesoporous TS-1 material (mesoTS-1), here the reported nanoTS-1\_D catalyst shows greatly improved performance in the model reaction of 1-hexene epoxidation. 40.9\% olefin conversion and 96.3\% epoxide selectivity are achieved and its high stability is verified by the 6 recycling-regeneration tests.",

author = "Changlin Du and Nan Cui and Linghao Li and Zile Hua and Jianlin Shi",

note = "Publisher Copyright: {\textcopyright} The Royal Society of Chemistry.",

year = "2019",

doi = "10.1039/C9RA00124G",

language = "英语",

volume = "9",

pages = "9694--9699",

journal = "RSC Advances",

issn = "2046-2069",

publisher = "Royal Society of Chemistry",

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TY - JOUR

T1 - A large-surface-area TS-1 nanocatalyst

T2 - a combination of nanoscale particle sizes and hierarchical micro/mesoporous structures

AU - Du, Changlin

AU - Cui, Nan

AU - Li, Linghao

AU - Hua, Zile

AU - Shi, Jianlin

N1 - Publisher Copyright: © The Royal Society of Chemistry.

PY - 2019

Y1 - 2019

N2 - By a simple sequent process of dry-gel steam-assisted crystallization and following a top-down alkali-etching treatment, hierarchically structured TS-1 nanozeolites (nanoTS-1_D) with abundant micro/mesopores have been synthesized for the first time, and they exhibit remarkably high specific surface area of 606 m2 g−1 and pore volume of 0.86 cm3 g−1. Characterization by XRD, FTIR, UV-vis and EM confirm the exclusive incorporation of titanium species in zeolite frameworks. More importantly, compared with the microporous TS-1 nanocrystal material with identical particle sizes of 80 nm (nanoTS-1) and submicrometer-sized mesoporous TS-1 material (mesoTS-1), here the reported nanoTS-1_D catalyst shows greatly improved performance in the model reaction of 1-hexene epoxidation. 40.9% olefin conversion and 96.3% epoxide selectivity are achieved and its high stability is verified by the 6 recycling-regeneration tests.

AB - By a simple sequent process of dry-gel steam-assisted crystallization and following a top-down alkali-etching treatment, hierarchically structured TS-1 nanozeolites (nanoTS-1_D) with abundant micro/mesopores have been synthesized for the first time, and they exhibit remarkably high specific surface area of 606 m2 g−1 and pore volume of 0.86 cm3 g−1. Characterization by XRD, FTIR, UV-vis and EM confirm the exclusive incorporation of titanium species in zeolite frameworks. More importantly, compared with the microporous TS-1 nanocrystal material with identical particle sizes of 80 nm (nanoTS-1) and submicrometer-sized mesoporous TS-1 material (mesoTS-1), here the reported nanoTS-1_D catalyst shows greatly improved performance in the model reaction of 1-hexene epoxidation. 40.9% olefin conversion and 96.3% epoxide selectivity are achieved and its high stability is verified by the 6 recycling-regeneration tests.

UR - https://www.scopus.com/pages/publications/85063550041

U2 - 10.1039/C9RA00124G

DO - 10.1039/C9RA00124G

M3 - 文章

AN - SCOPUS:85063550041

SN - 2046-2069

VL - 9

SP - 9694

EP - 9699

JO - RSC Advances

JF - RSC Advances

IS - 17

ER -

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

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