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]
  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
2. [2]
  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
3. [3]
  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
4. [4]
  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
5. [5]
  Jin Tong , Shuyan Yu . Crystal Engineering for Supramolecular Chirality. University Chemistry, 2024, 39(3): 86-93. doi: 10.3866/PKU.DXHX202308113
6. [6]
  Yuping Wei , Yiting Wang , Jialiang Jiang , Jinxuan Deng , Hong Zhang , Xiaofei Ma , Junjie Li . Interdisciplinary Teaching Practice——Flexible Wearable Electronic Skin for Low-Temperature Environments. University Chemistry, 2024, 39(10): 261-270. doi: 10.12461/PKU.DXHX202404007
7. [7]
  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
8. [8]
  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
9. [9]
  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
10. [10]
  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
11. [11]
  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
12. [12]
  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
13. [13]
  Jinfu Ma , Hui Lu , Jiandong Wu , Zhongli Zou . Teaching Design of Electrochemical Principles Course Based on “Cognitive Laws”: Kinetics of Electron Transfer Steps. University Chemistry, 2024, 39(3): 174-177. doi: 10.3866/PKU.DXHX202309052
14. [14]
  Yuqiao Zhou , Weidi Cao , Shunxi Dong , Lili Lin , Xiaohua Liu . Study on the Teaching Reformation of Practical X-ray Crystallography. University Chemistry, 2024, 39(3): 23-28. doi: 10.3866/PKU.DXHX202303003
15. [15]
  Xinyi Hong , Tailing Xue , Zhou Xu , Enrong Xie , Mingkai Wu , Qingqing Wang , Lina Wu . Non-Site-Specific Fluorescent Labeling of Proteins as a Chemical Biology Experiment. University Chemistry, 2024, 39(4): 351-360. doi: 10.3866/PKU.DXHX202310010
16. [16]
  Donghui PAN , Yuping XU , Xinyu WANG , Lizhen WANG , Junjie YAN , Dongjian SHI , Min YANG , Mingqing CHEN . Preparation and in vivo tracing of ⁶⁸Ga-labeled PM_2.5 mimetic particles for positron emission tomography imaging. Chinese Journal of Inorganic Chemistry, 2024, 40(4): 669-676. doi: 10.11862/CJIC.20230468
17. [17]
  Jizhou Liu , Chenbin Ai , Chenrui Hu , Bei Cheng , Jianjun Zhang . 六氯锡酸铵促进钙钛矿太阳能电池界面电子转移及其飞秒瞬态吸收光谱研究. Acta Physico-Chimica Sinica, 2024, 40(11): 2402006-. doi: 10.3866/PKU.WHXB202402006
18. [18]
  Qin Hu , Liuyun Chen , Xinling Xie , Zuzeng Qin , Hongbing Ji , Tongming Su . Ni掺杂构建电子桥及激活MoS₂惰性基面增强光催化分解水产氢. Acta Physico-Chimica Sinica, 2024, 40(11): 2406024-. doi: 10.3866/PKU.WHXB202406024
19. [19]
  Xiangchun Li , Wei Xue , Xu Liu , Wenyong Lai . Research and Practice on the Cultivation of Innovation Ability of Chemistry Graduate Students in Electronic Information Universities: A Case Study of Nanjing University of Posts and Telecommunications. University Chemistry, 2024, 39(6): 55-62. doi: 10.3866/PKU.DXHX202310018
20. [20]
  Yan Su , Xiuyun Wang , Huimin Guo , Yanjuan Zhang , Xinwen Zhang , Yunting Shang , Wenfeng Jiang . To Cultivate Scientific Literacy by Learning, Thinking, Practicing and Understanding, To Utilize the “Smart Eye” Expertise by Integrating of Knowledge and Action: Ideological and Political Construction of Analytical Chemistry Experiment Course. University Chemistry, 2024, 39(2): 196-202. doi: 10.3866/PKU.DXHX202308003

Get Citation

PDF

XML

Metrics

PDF Downloads(2610)
Abstract views(2791)
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