Home

Citation: Yang Gang, Wang Yan, Zhou Dan-Hong, Zhuang Jian-Qin, Liu Xian-Chun, Han Xiu-Wen, Bao Xin-He. Investigation on the Thermal Stability of La/ZSM-5 Zeolite and the La^3＋ Species[J]. Acta Physico-Chimica Sinica, ;2004, 20(01): 60-64. doi: 10.3866/PKU.WHXB20040113 shu

Investigation on the Thermal Stability of La/ZSM-5 Zeolite and the La^3＋ Species

1.
State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences　116023; Department of Chemistry, Liaoning Normal University, Dalian　116029

Received Date: 30 June 2003
Available Online: 15 January 2004

By density functional calculations, it was confirmed that for the reaction of RSCC (residual oil selective catalytic cracking),the catalysts such as zeolite ZSM-5 will endure an enhanced thermal stability when some La3＋ ions are introduced. Due to the strong interaction between La3＋ and the zeolite, the Al－O bond, which would have been easily broken, gets stronger and the process of dealumination is thus effectively retarded. Through the reduction of La(OH)2＋ when heated, LaO(OH) is most likely formed, which can interact with zeolite ZSM-5 and turns out to the structure of Z－La(OH)2＋ or Z-LaO(OH) after geometrical optimization. Z－La(OH)2＋ remains stable under normal conditions; however, as the temperature is raised, it will change slowly into Z-LaO(OH),which stays stable at high temperature. The La3＋ ion in Z-LaO(OH) can offer Lewis acid as the active site for reactions, we believe that this result can provide valuable insight into the elucidation of catalytic mechanism.
- ZSM-5;LaO(OH);La(OH)₂^＋;Density functional;　Thermal stability
1. [1]
  Xuewei BA , Cheng CHENG , Huaikang ZHANG , Deqing ZHANG , Shuhua LI . Preparation and luminescent performance of Sr_1-xZrSi₂O₇∶xDy³⁺ phosphor with high thermal stability. Chinese Journal of Inorganic Chemistry, 2025, 41(2): 357-364. doi: 10.11862/CJIC.20240096
2. [2]
  Meifeng Zhu , Jin Cheng , Kai Huang , Cheng Lian , Shouhong Xu , Honglai Liu . Classical Density Functional Theory for Understanding Electrochemical Interface. University Chemistry, 2025, 40(3): 148-152. doi: 10.12461/PKU.DXHX202405166
3. [3]
  Xinyu You , Xin Zhang , Shican Jiang , Yiru Ye , Lin Gu , Hexun Zhou , Pandong Ma , Jamal Ftouni , Abhishek Dutta Chowdhury . Efficacy of Ca/ZSM-5 zeolites derived from precipitated calcium carbonate in the methanol-to-olefin process. Chinese Journal of Structural Chemistry, 2024, 43(4): 100265-100265. doi: 10.1016/j.cjsc.2024.100265
4. [4]
  Hao XU , Ruopeng LI , Peixia YANG , Anmin LIU , Jie BAI . Regulation mechanism of halogen axial coordination atoms on the oxygen reduction activity of Fe-N₄ site: A density functional theory study. Chinese Journal of Inorganic Chemistry, 2025, 41(4): 695-701. doi: 10.11862/CJIC.20240302
5. [5]
  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
6. [6]
  Shitao Fu , Jianming Zhang , Cancan Cao , Zhihui Wang , Chaoran Qin , Jian Zhang , Hui Xiong . Study on the Stability of Purple Cabbage Pigment. University Chemistry, 2024, 39(4): 367-372. doi: 10.3866/PKU.DXHX202401059
7. [7]
  Jin CHANG . Supercapacitor performance and first-principles calculation study of Co-doping Ni(OH)₂. Chinese Journal of Inorganic Chemistry, 2024, 40(9): 1697-1707. doi: 10.11862/CJIC.20240108
8. [8]
  Lu Dai , Yuxin Ren , Shuang Li , Meidi Wang , Chentao Hu , Ya-Pan Wu , Guangtong Hai , Dong-Sheng Li . Room-temperature synthesis of Co(OH)₂/Mo₂TiC₂T_x hetero-nanosheets with interfacial coupling for enhanced oxygen evolution reaction. Chinese Chemical Letters, 2025, 36(4): 109774-. doi: 10.1016/j.cclet.2024.109774
9. [9]
  Xuyang Wang , Jiapei Zhang , Lirui Zhao , Xiaowen Xu , Guizheng Zou , Bin Zhang . Theoretical Study on the Structure and Stability of Copper-Ammonia Coordination Ions. University Chemistry, 2024, 39(3): 384-389. doi: 10.3866/PKU.DXHX202309065
10. [10]
  Xiaoning TANG , Junnan LIU , Xingfu YANG , Jie LEI , Qiuyang LUO , Shu XIA , An XUE . Effect of sodium alginate-sodium carboxymethylcellulose gel layer on the stability of Zn anodes. Chinese Journal of Inorganic Chemistry, 2024, 40(8): 1452-1460. doi: 10.11862/CJIC.20240191
11. [11]
  Jiaxi Xu , Yuan Ma . Influence of Hyperconjugation on the Stability and Stable Conformation of Ethane, Hydrazine, and Hydrogen Peroxide. University Chemistry, 2024, 39(11): 374-377. doi: 10.3866/PKU.DXHX202402049
12. [12]
  Shiyi WANG , Chaolong CHEN , Xiangjian KONG , Lansun ZHENG , Lasheng LONG . Polynuclear lanthanide compound [Ce₄^ⅢCe₆^Ⅳ(μ₃-O)₄(μ₄-O)₄(acac)₁₄(CH₃O)₆]·2CH₃OH for the hydroboration of amides to amine. Chinese Journal of Inorganic Chemistry, 2025, 41(1): 88-96. doi: 10.11862/CJIC.20240342
13. [13]
  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
14. [14]
  Renqing Lü , Shutao Wang , Fang Wang , Guoping Shen . Computational Chemistry Aided Organic Chemistry Teaching: A Case of Comparison of Basicity and Stability of Diazine Isomers. University Chemistry, 2025, 40(3): 76-82. doi: 10.12461/PKU.DXHX202404119
15. [15]
  Baitong Wei , Jinxin Guo , Xigong Liu , Rongxiu Zhu , Lei Liu . Theoretical Study on the Structure, Stability of Hydrocarbon Free Radicals and Selectivity of Alkane Chlorination Reaction. University Chemistry, 2025, 40(3): 402-407. doi: 10.12461/PKU.DXHX202406003
16. [16]
  Yinglian LI , Chengcheng ZHANG , Xinyu ZHANG , Xinyi WANG . Spin crossover in [Co(pytpy)₂]²⁺ complexes modified by organosulfonate anions. Chinese Journal of Inorganic Chemistry, 2024, 40(6): 1162-1172. doi: 10.11862/CJIC.20240087
17. [17]
  Jun-Jie Fang , Zheng Liu , Yun-Peng Xie , Xing Lu . Superatomic Ag₅₈ nanoclusters incorporating a [MS₄@Ag₁₂]²⁺ (M = Mo or W) kernel show aggregation-induced emission. Chinese Chemical Letters, 2024, 35(10): 109345-. doi: 10.1016/j.cclet.2023.109345
18. [18]
  Ru SONG , Biao WANG , Chunling LU , Bingbing NIU , Dongchao QIU . Electrochemical properties of stable and highly active PrBa_0.5Sr_0.5Fe_1.6Ni_0.4O_5+δ cathode material. Chinese Journal of Inorganic Chemistry, 2025, 41(4): 639-649. doi: 10.11862/CJIC.20240397
19. [19]
  Zhiyuan TONG , Ziyuan LI , Ke ZHANG . Three-dimensional porous collector based on Cu-Li_6.4La₃Zr_1.4Ta_0.6O₁₂ composite layer for the construction of stable lithium metal anode. Chinese Journal of Inorganic Chemistry, 2025, 41(3): 499-508. doi: 10.11862/CJIC.20240238
20. [20]
  Wen YANG , Didi WANG , Ziyi HUANG , Yaping ZHOU , Yanyan FENG . La promoted hydrotalcite derived Ni-based catalysts: In situ preparation and CO₂ methanation performance. Chinese Journal of Inorganic Chemistry, 2024, 40(3): 561-570. doi: 10.11862/CJIC.20230276

Get Citation

PDF

XML

Metrics

PDF Downloads(2803)
Abstract views(4316)
HTML views(14)

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

Investigation on the Thermal Stability of La/ZSM-5 Zeolite and the La3＋ Species

Metrics

通讯作者: 陈斌, bchen63@163.com

Investigation on the Thermal Stability of La/ZSM-5 Zeolite and the La^3＋ Species