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Mesoporous ZSM-5 Zeolites with External Acid Sites Selective Passivation and Their Catalytic Performances
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Minglei GOU, Junkai WANG, Wensheng SONG
Journal of the Chinese Ceramic Society | 2020, 48(12) : 1960 - 1965
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Journal of the Chinese Ceramic Society | 2020, 48(12): 1960-1965
Mesoporous ZSM-5 Zeolites with External Acid Sites Selective Passivation and Their Catalytic Performances
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Minglei GOU, Junkai WANG, Wensheng SONG
Affiliations
  • School of Chemical Engineering and Pharmaceutics, Henan University of Science and Technology, Luoyang 471023, Henan, China

    • GOU Minglei (1984-), male, Ph.D., Associate Professor. E-mail:

About Author:

GOU Minglei (1984-), male, Ph.D., Associate Professor. E-mail:

Published: 2020-12-20 doi: 10.14062/j.issn.0454-5648.20200302
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Mesoporosity was introduced into the ZSM-5 zeolites by alkaline treatment and the external acid sites were passivated selectively via adsorption of phosphate anions on the surfactant modified surface. The results showed that the mesoporosity was successfully obtained after alkaline treatment, meanwhile, the external acid sites increased and the selectivity decreased. A monolayer or bilayer structutre of surfactant on the surface of zeolites could be formed in the different concentrations of surfactant solutions. The monolayer structure did not absorb the phosphate anions. While the bilayer structure selectively absorbed the phosphate anions on the external surface, which could passivate the external acid sites after calcining. The modified zeolites had high activity, stability and selectivity in the isomerization of styrene oxide with yield of phenylacetaldehyde more than 95% and no significant deactivation after 100 h time on stream.

zeolite socony mobil-5  /  mesoporous zeolite  /  external acid site  /  passivation  /  catalytic performance
勾明雷, 王俊锴, 宋文生. 介孔ZSM-5沸石外表面酸性位选择性钝化及其催化性能. 硅酸盐学报, 2020 , 48 (12) : 1960 -1965 . DOI: 10.14062/j.issn.0454-5648.20200302
Minglei GOU, Junkai WANG, Wensheng SONG. Mesoporous ZSM-5 Zeolites with External Acid Sites Selective Passivation and Their Catalytic Performances[J]. Journal of the Chinese Ceramic Society, 2020 , 48 (12) : 1960 -1965 . DOI: 10.14062/j.issn.0454-5648.20200302
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Year 2020 volume 48 Issue 12
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Article Info
doi: 10.14062/j.issn.0454-5648.20200302
  • Receive Date：2020-04-28
  • Online Date：2026-10-30
  • Published：2020-12-20
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  • Received：2020-04-28
  • Revised：2020-05-19
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    School of Chemical Engineering and Pharmaceutics, Henan University of Science and Technology, Luoyang 471023, Henan, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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