A novel method for incorporation of heteroatoms into the framework of ordered mesoporous silica materials synthesized in strong acidic media

Yu Han; Feng Shou Xiao; Shuo Wu; Yinyong Sun; Xiangju Meng; Dongsheng Li; Sen Lin; Feng Deng; Xuanjun Ai

doi:10.1021/jp011204k

A novel method for incorporation of heteroatoms into the framework of ordered mesoporous silica materials synthesized in strong acidic media

Yu Han, Feng Shou Xiao^*, Shuo Wu, Yinyong Sun, Xiangju Meng, Dongsheng Li, Sen Lin, Feng Deng, Xuanjun Ai

^*Corresponding author for this work

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

239 Scopus citations

Abstract

Heteroatoms of Al and Ti are effectively introduced into the framework of ordered mesoporous silica materials (designated as MAS-7 and MTS-9, respectively) in strong acidic media (pH < 0) by a two-step procedure. MAS-7 shows high catalytic activities for the cracking of both small (cumene) and bulky (1,3,5-triisopropylbenzene) molecules because it combines the advantages of both zeolites (strong acidity) and mesoporous materials (large pores). In contrast, Al-SBA-15 samples prepared from both "post-synthesis" and "direct synthesis" present much lower catalytic activities than MAS-7. Furthermore, MTS-9 exhibits very high catalytic activity in phenol hydroxylation by H₂O₂, giving the phenol conversion of 26%, comparable to TS-1.

Original language	English (US)
Pages (from-to)	7963-7966
Number of pages	4
Journal	Journal of Physical Chemistry B
Volume	105
Issue number	33
DOIs	https://doi.org/10.1021/jp011204k
State	Published - Aug 23 2001
Externally published	Yes

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Surfaces, Coatings and Films
Materials Chemistry

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title = "A novel method for incorporation of heteroatoms into the framework of ordered mesoporous silica materials synthesized in strong acidic media",

abstract = "Heteroatoms of Al and Ti are effectively introduced into the framework of ordered mesoporous silica materials (designated as MAS-7 and MTS-9, respectively) in strong acidic media (pH < 0) by a two-step procedure. MAS-7 shows high catalytic activities for the cracking of both small (cumene) and bulky (1,3,5-triisopropylbenzene) molecules because it combines the advantages of both zeolites (strong acidity) and mesoporous materials (large pores). In contrast, Al-SBA-15 samples prepared from both {"}post-synthesis{"} and {"}direct synthesis{"} present much lower catalytic activities than MAS-7. Furthermore, MTS-9 exhibits very high catalytic activity in phenol hydroxylation by H2O2, giving the phenol conversion of 26%, comparable to TS-1.",

author = "Yu Han and Xiao, {Feng Shou} and Shuo Wu and Yinyong Sun and Xiangju Meng and Dongsheng Li and Sen Lin and Feng Deng and Xuanjun Ai",

year = "2001",

month = aug,

day = "23",

doi = "10.1021/jp011204k",

language = "English (US)",

volume = "105",

pages = "7963--7966",

journal = "Journal of Physical Chemistry B",

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TY - JOUR

T1 - A novel method for incorporation of heteroatoms into the framework of ordered mesoporous silica materials synthesized in strong acidic media

AU - Han, Yu

AU - Xiao, Feng Shou

AU - Wu, Shuo

AU - Sun, Yinyong

AU - Meng, Xiangju

AU - Li, Dongsheng

AU - Lin, Sen

AU - Deng, Feng

AU - Ai, Xuanjun

PY - 2001/8/23

Y1 - 2001/8/23

N2 - Heteroatoms of Al and Ti are effectively introduced into the framework of ordered mesoporous silica materials (designated as MAS-7 and MTS-9, respectively) in strong acidic media (pH < 0) by a two-step procedure. MAS-7 shows high catalytic activities for the cracking of both small (cumene) and bulky (1,3,5-triisopropylbenzene) molecules because it combines the advantages of both zeolites (strong acidity) and mesoporous materials (large pores). In contrast, Al-SBA-15 samples prepared from both "post-synthesis" and "direct synthesis" present much lower catalytic activities than MAS-7. Furthermore, MTS-9 exhibits very high catalytic activity in phenol hydroxylation by H2O2, giving the phenol conversion of 26%, comparable to TS-1.

AB - Heteroatoms of Al and Ti are effectively introduced into the framework of ordered mesoporous silica materials (designated as MAS-7 and MTS-9, respectively) in strong acidic media (pH < 0) by a two-step procedure. MAS-7 shows high catalytic activities for the cracking of both small (cumene) and bulky (1,3,5-triisopropylbenzene) molecules because it combines the advantages of both zeolites (strong acidity) and mesoporous materials (large pores). In contrast, Al-SBA-15 samples prepared from both "post-synthesis" and "direct synthesis" present much lower catalytic activities than MAS-7. Furthermore, MTS-9 exhibits very high catalytic activity in phenol hydroxylation by H2O2, giving the phenol conversion of 26%, comparable to TS-1.

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U2 - 10.1021/jp011204k

DO - 10.1021/jp011204k

M3 - Article

AN - SCOPUS:0035939783

SN - 1089-5647

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JO - Journal of Physical Chemistry B

JF - Journal of Physical Chemistry B

IS - 33

ER -

A novel method for incorporation of heteroatoms into the framework of ordered mesoporous silica materials synthesized in strong acidic media

Abstract

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