Home

Citation: Tang Yi, Hua Wei-Ming, Gao Zi. Pore Structure and Catalytic Behavior of Modified Y Zeolites[J]. Acta Physico-Chimica Sinica, ;1992, 8(05): 595-601. doi: 10.3866/PKU.WHXB19920505 shu

Pore Structure and Catalytic Behavior of Modified Y Zeolites

1.
Chemistry Department, Fudan University, Shanghai 200433

Received Date: 24 April 1991
Available Online: 15 October 1992

The N_2 adsorption and desorption isotherms of Y zeolites modified by hydrothermal treatment (HUSY), H_4EDTA dealumination (HEY) and (NH_4)_2SiF_6 isomorphous substitution (HSY) were measured and compared with that of the original NaY and HY zeolites. The size and the shape of the hysteresis loops on the isotherms are different, which shows that the secondary pore systems of these zeolites vary with the modification procedures. The sequence of the secondary pore volumes of the samples is as follows
HY (2.6)<HSY(5.7)<HSY(9.8)HUSY(2.9)<HEY(4.9)
The pore distributions of the samples deduced from the theoretical treatment of the N_2 desorption isotherms according to non interconnected cylindrical pore model (BJH model) show that the maximum of secondary porosity of all the modified zeolite Y samples is due to pores of ~2.0 nm radius. However, for HUSY and HEY there are pores with radii >2.0 nm and <2.0 nm as well.
Reactant with various molecular sizes such as propanol, cumene and 1,3,5-tritert-butylbenzene were used as probes to study the catalytic behavior of the modified zeolite samples. The catalytic activities of the probe molecules on the zeolite were correlated with the data of the acidity and the secondary pore volume. It is clear that for larger molecules as cumene and 1,3,5-tri-tert-butylbenzene the presence of secondary mesopores in the zeolite structure promotes the cracking reactions considerably.
- Y zeolite; Zeolite modifieation; Pore structure; Secondary mesopore; Acid catalyzed reaction
1. [1]
  Xingyang LI , Tianju LIU , Yang GAO , Dandan ZHANG , Yong ZHOU , Meng PAN . A superior methanol-to-propylene catalyst: Construction via synergistic regulation of pore structure and acidic property of high-silica ZSM-5 zeolite. Chinese Journal of Inorganic Chemistry, 2024, 40(7): 1279-1289. doi: 10.11862/CJIC.20240026
2. [2]
  Wuxin Bai , Qianqian Zhou , Zhenjie Lu , Ye Song , Yongsheng Fu . Co-Ni Bimetallic Zeolitic Imidazolate Frameworks Supported on Carbon Cloth as Free-Standing Electrode for Highly Efficient Oxygen Evolution. Acta Physico-Chimica Sinica, 2024, 40(3): 2305041-0. doi: 10.3866/PKU.WHXB202305041
3. [3]
  Yuting Bai , Cenqi Yan , Zhen Li , Jiaqiang Qin , Pei Cheng . Preparation of High-Strength Polyimide Porous Films with Thermally Closed Pore Property by In Situ Pore Formation Method. Acta Physico-Chimica Sinica, 2024, 40(9): 2306010-0. doi: 10.3866/PKU.WHXB202306010
4. [4]
  Bing LIU , Huang ZHANG , Hongliang HAN , Changwen HU , Yinglei ZHANG . Visible light degradation of methylene blue from water by triangle Au@TiO₂ mesoporous catalyst. Chinese Journal of Inorganic Chemistry, 2024, 40(5): 941-952. doi: 10.11862/CJIC.20230398
5. [5]
  Jiao CHEN , Yi LI , Yi XIE , Dandan DIAO , Qiang XIAO . Vapor-phase transport of MFI nanosheets for the fabrication of ultrathin b-axis oriented zeolite membranes. Chinese Journal of Inorganic Chemistry, 2024, 40(3): 507-514. doi: 10.11862/CJIC.20230403
6. [6]
  Jiali CHEN , Guoxiang ZHAO , Yayu YAN , Wanting XIA , Qiaohong LI , Jian ZHANG . Machine learning exploring the adsorption of electronic gases on zeolite molecular sieves. Chinese Journal of Inorganic Chemistry, 2025, 41(1): 155-164. doi: 10.11862/CJIC.20240408
7. [7]
  Jun Huang , Pengfei Nie , Yongchao Lu , Jiayang Li , Yiwen Wang , Jianyun Liu . 丝光沸石负载自支撑氮掺杂多孔碳纳米纤维电容器及高效选择性去除硬度离子. Acta Physico-Chimica Sinica, 2025, 41(7): 100066-0. doi: 10.1016/j.actphy.2025.100066
8. [8]
  Kexin Yan , Zhaoqi Ye , Lingtao Kong , He Li , Xue Yang , Yahong Zhang , Hongbin Zhang , Yi Tang . Seed-Induced Synthesis of Disc-Cluster Zeolite L Mesocrystals with Ultrashort c-Axis: Morphology Control, Decoupled Mechanism, and Enhanced Adsorption. Acta Physico-Chimica Sinica, 2024, 40(9): 2308019-0. doi: 10.3866/PKU.WHXB202308019
9. [9]
  Heng Zhang . Determination of All Rate Constants in the Enzyme Catalyzed Reactions Based on Michaelis-Menten Mechanism. University Chemistry, 2024, 39(4): 395-400. doi: 10.3866/PKU.DXHX202310047
10. [10]
  Hong Lu , Yidie Zhai , Xingxing Cheng , Yujia Gao , Qing Wei , Hao Wei . Advancements and Expansions in the Proline-Catalyzed Asymmetric Aldol Reaction. University Chemistry, 2024, 39(5): 154-162. doi: 10.3866/PKU.DXHX202310074
11. [11]
  Aili Feng , Xin Lu , Peng Liu , Dongju Zhang . Computational Chemistry Study of Acid-Catalyzed Esterification Reactions between Carboxylic Acids and Alcohols. University Chemistry, 2025, 40(3): 92-99. doi: 10.12461/PKU.DXHX202405072
12. [12]
  Xueting Cao , Shuangshuang Cha , Ming Gong . Interfacial Electrical Double Layer in Electrocatalytic Reactions: Fundamentals, Characterizations and Applications. Acta Physico-Chimica Sinica, 2025, 41(5): 100041-0. doi: 10.1016/j.actphy.2024.100041
13. [13]
  Xinyi Zhang , Kai Ren , Yanning Liu , Zhenyi Gu , Zhixiong Huang , Shuohang Zheng , Xiaotong Wang , Jinzhi Guo , Igor V. Zatovsky , Junming Cao , Xinglong Wu . Progress on Entropy Production Engineering for Electrochemical Catalysis. Acta Physico-Chimica Sinica, 2024, 40(7): 2307057-0. doi: 10.3866/PKU.WHXB202307057
14. [14]
  Lu XU , Chengyu ZHANG , Wenjuan JI , Haiying YANG , Yunlong FU . Zinc metal-organic framework with high-density free carboxyl oxygen functionalized pore walls for targeted electrochemical sensing of paracetamol. Chinese Journal of Inorganic Chemistry, 2024, 40(5): 907-918. doi: 10.11862/CJIC.20230431
15. [15]
  Jing SU , Bingrong LI , Yiyan BAI , Wenjuan JI , Haiying YANG , Zhefeng Fan . Highly sensitive electrochemical dopamine sensor based on a highly stable In-based metal-organic framework with amino-enriched pores. Chinese Journal of Inorganic Chemistry, 2024, 40(7): 1337-1346. doi: 10.11862/CJIC.20230414
16. [16]
  Yuanpei ZHANG , Jiahong WANG , Jinming HUANG , Zhi HU . Preparation of magnetic mesoporous carbon loaded nano zero-valent iron for removal of Cr(Ⅲ) organic complexes from high-salt wastewater. Chinese Journal of Inorganic Chemistry, 2024, 40(9): 1731-1742. doi: 10.11862/CJIC.20240077
17. [17]
  Zehao Zhang , Zheng Wang , Haibo Li . Preparation of 2D V₂O₃@Pourous Carbon Nanosheets Derived from V₂CF_x MXene for Capacitive Desalination. Acta Physico-Chimica Sinica, 2024, 40(8): 2308020-0. doi: 10.3866/PKU.WHXB202308020
18. [18]
  Hongyi LI , Aimin WU , Liuyang ZHAO , Xinpeng LIU , Fengqin CHEN , Aikui LI , Hao HUANG . Effect of Y(PO₃)₃ double-coating modification on the electrochemical properties of Li[Ni_0.8Co_0.15Al_0.05]O₂. Chinese Journal of Inorganic Chemistry, 2024, 40(7): 1320-1328. doi: 10.11862/CJIC.20230480
19. [19]
  Ke QIAO , Yanlin LI , Shengli HUANG , Guoyu YANG . Advancements in asymmetric catalysis employing chiral iridium (ruthenium) complexes. Chinese Journal of Inorganic Chemistry, 2024, 40(11): 2091-2104. doi: 10.11862/CJIC.20240265
20. [20]
  Xudong Lv , Tao Shao , Junyan Liu , Meng Ye , Shengwei Liu . Paired Electrochemical CO₂ Reduction and HCHO Oxidation for the Cost-Effective Production of Value-Added Chemicals. Acta Physico-Chimica Sinica, 2024, 40(5): 2305028-0. doi: 10.3866/PKU.WHXB202305028

Get Citation

PDF

XML

Metrics

PDF Downloads(2273)
Abstract views(3594)
HTML views(145)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888

DownLoad: Full-Size Img PowerPoint

Return