Home

Citation: Zhu Jun, Wang Shao-Jie, Ma Li, Chen Zhi-Quan. The Study of Dehydration from the Secondary Pore in USY Zeolite by the Positron Annihilation Pectroscopy[J]. Acta Physico-Chimica Sinica, ;1999, 15(11): 1053-1056. doi: 10.3866/PKU.WHXB19991119 shu

The Study of Dehydration from the Secondary Pore in USY Zeolite by the Positron Annihilation Pectroscopy

1.
Department of Physics,Wuhan University,Wuhan 430072

Received Date: 13 April 1999
Available Online: 15 November 1999

The positron lifetime spectra were measured as a function of dehydration time for the ultra stable Y zeolite(USY) samples unheated, heated at 180 ℃in air and at 500 ℃in vacuum respectively. All spectra were resolved into five components. The intensity of the fifth component I5 is sensitive to the structure of the second pore in USY. The experimental results indicate that long time pumping with 0.5 Pa vacuum can dehydrate, but heating the sample at 500 ℃is a more effective method of dehydration for the second pore in USY zeolite.
- Positron annihilation,
- USY zeolite,
- Dehydration
1. [1]
  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
2. [2]
  Zhongyan Cao , Youzhi Xu , Menghua Li , Xiao Xiao , Xianqiang Kong , Deyun Qian . Electrochemically Driven Denitrative Borylation and Fluorosulfonylation of Nitroarenes. University Chemistry, 2025, 40(4): 277-281. doi: 10.12461/PKU.DXHX202407017
3. [3]
  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
4. [4]
  Ping Song , Nan Zhang , Jie Wang , Rui Yan , Zhiqiang Wang , Yingxue Jin . Experimental Teaching Design on Synthesis and Antitumor Activity Study of Cu-Pyropheophorbide-a Methyl Ester. University Chemistry, 2024, 39(6): 278-286. doi: 10.3866/PKU.DXHX202310087
5. [5]
  Jianan Zhang , Mengzhen Xu , Jiamin Liu , Yufei He . 面向“双碳”目标的脱氯吸附剂开发研究型综合实验设计. University Chemistry, 2025, 40(6): 248-255. doi: 10.12461/PKU.DXHX202408068
6. [6]
  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
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-. doi: 10.1016/j.actphy.2025.100066
8. [8]
  Tengjiao Wang , Tian Cheng , Rongjun Liu , Zeyi Wang , Yuxuan Qiao , An Wang , Peng Li . Conductive Hydrogel-based Flexible Electronic System: Innovative Experimental Design in Flexible Electronics. University Chemistry, 2024, 39(4): 286-295. doi: 10.3866/PKU.DXHX202309094
9. [9]
  Jin Tong , Shuyan Yu . Crystal Engineering for Supramolecular Chirality. University Chemistry, 2024, 39(3): 86-93. doi: 10.3866/PKU.DXHX202308113
10. [10]
  Xianfei Chen , Wentao Zhang , Haiying Du . Experimental Design of Computational Materials Science Based on Scientific Research Cases. University Chemistry, 2025, 40(3): 52-61. doi: 10.3866/PKU.DXHX202403112
11. [11]
  Zihao Guo , Shichen Ma , Kin Shing Chan . 烯烃环化反应中6电子试剂的等瓣相似性和等电子关系. University Chemistry, 2025, 40(6): 160-166. doi: 10.12461/PKU.DXHX202408038
12. [12]
  Hongwei Ma , Fang Zhang , Hui Ai , Niu Zhang , Shaochun Peng , Hui Li . Integrated Crystallographic Teaching with X-ray,TEM and STM. University Chemistry, 2024, 39(3): 5-17. doi: 10.3866/PKU.DXHX202308107
13. [13]
  Jiantao Zai , Hongjin Chen , Xiao Wei , Li Zhang , Li Ma , Xuefeng Qian . The Learning-Centered Problem-Oriented Experimental Teaching. University Chemistry, 2024, 39(4): 40-47. doi: 10.3866/PKU.DXHX202309023
14. [14]
  Yang Liu , Peng Chen , Lei Liu . Chemistry “101 Plan”: Design and Construction of Chemical Biology Textbook. University Chemistry, 2024, 39(10): 45-51. doi: 10.12461/PKU.DXHX202407085
15. [15]
  Weitai Wu , Laiying Zhang , Yuan Chun , Liang Qiao , Bin Ren . Course Design of Chemical Measurement Experiments in Chemistry “101 Plan”. University Chemistry, 2024, 39(10): 64-68. doi: 10.12461/PKU.DXHX202409031
16. [16]
  Tianyu Feng , Guifang Jia , Peng Zou , Jun Huang , Zhanxia Lü , Zhen Gao , Chu Wang . Construction of the Chemistry Biology Experiment Course in the Chemistry “101 Program”. University Chemistry, 2024, 39(10): 69-77. doi: 10.12461/PKU.DXHX202409002
17. [17]
  Laiying Zhang , Weitai Wu , Yiru Wang , Shunliu Deng , Zhaobin Chen , Jiajia Chen , Bin Ren . Practices for Improving the Course of Chemical Measurement Experiments in the Chemistry “101 Plan”. University Chemistry, 2024, 39(10): 107-112. doi: 10.12461/PKU.DXHX202409032
18. [18]
  Jia Zhou , Huaying Zhong . Experimental Design of Computational Materials Science Combined with Machine Learning. University Chemistry, 2025, 40(3): 171-177. doi: 10.12461/PKU.DXHX202406004
19. [19]
  Houjin Li , Lin Wu , Xingwen Sun , Yuan Zheng , Zhanxiang Liu , Shuanglian Cai , Ying Xiong , Guangao Yu , Qingwen Liu , Jie Han , Xin Du , Chengshan Yuan , Qihan Zhang , Jianrong Zhang , Shuyong Zhang . Basic Operations and Specification Suggestions for Organic Chemical Chromatography Experiments. University Chemistry, 2025, 40(5): 93-105. doi: 10.12461/PKU.DXHX202408100
20. [20]
  Yi-Lin Xie , Jian-Ji Zhong , Qing-Xiao Tong , Jing-Xin Jian . Exploring “Magic Teaching” as a Means to Integrate Organic Chemistry Experiments with the “Industry-University-Research” Model. University Chemistry, 2025, 40(5): 252-260. doi: 10.12461/PKU.DXHX202407024

Get Citation

PDF

XML

Metrics

PDF Downloads(2610)
Abstract views(2908)
HTML views(1)

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