MD - Simulation of diffusion of methane in zeolites of type LTA

被引:15
|
作者
Fritzsche, S [1 ]
Gaub, M [1 ]
Haberlandt, R [1 ]
Hofmann, G [1 ]
机构
[1] UNIV LEIPZIG, FAK PHYS & GEOWISSENSCH, INST THEORET PHYS, D-04109 LEIPZIG, GERMANY
关键词
MD; zeolites; diffusion processes;
D O I
10.1007/s0089460020286
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Using molecular dynamical computer simulations (MD) the dynamics of kinetic processes in zeolites will be discussed on a molecular level. Small changes in lattice parameters can cause dramatical changes in the diffusion coefficient. The presence of cations Na+, Ca2+ also strongly influences the diffusion. Changes of the self-diffusivities will be discussed that appear if a vibrating lattice instead of a rigid one is used. Nonequilibrium simulations show the correlation between transport-diffusion and self-diffusion in zeolites.
引用
收藏
页码:286 / 292
页数:7
相关论文
共 50 条
  • [31] SORPTION AND DIFFUSION OF ETHANE IN TYPE-A ZEOLITES
    LOUGHLIN, KF
    RUTHVEN, DM
    CHEMICAL ENGINEERING SCIENCE, 1972, 27 (07) : 1401 - &
  • [32] A molecular dynamic investigation of the diffusion of methane-ethane and methane-propane mixtures in zeolites
    Krishna, R.
    van Baten, J. M.
    CHEMICAL ENGINEERING & TECHNOLOGY, 2006, 29 (12) : 1429 - 1437
  • [33] A MONTE-CARLO SIMULATION OF DIFFUSION AND REACTION IN ZEOLITES
    FRANK, B
    DAHLKE, K
    EMIG, G
    AUST, E
    BROUCEK, R
    NYWLT, M
    MICROPOROUS MATERIALS, 1993, 1 (01): : 43 - 56
  • [34] Effects of PVP and NaCl on the decomposition of methane hydrate by MD simulation
    Zhao, Jianwei
    Jin, Jiafeng
    Lv, Kaihe
    Sun, Jinsheng
    Wang, Ren
    Wang, Jintang
    Guo, Xuan
    Hou, Qilin
    Liu, Jia
    Bai, Yingrui
    Huang, Xianbin
    Liu, Jingping
    COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2022, 633
  • [35] Temperature-regulated gas adsorption on LTA zeolites: Observation of sorption isotherms for methane, hydrogen, nitrogen and carbon dioxide
    Sadeghi, Paria
    Myers, Matthew B.
    Pareek, Vishnu
    Arami-Niya, Arash
    APPLIED SURFACE SCIENCE, 2024, 678
  • [36] MD simulation of vacancy and interstitial diffusion in FeCr alloy
    Tikhonchev, Mikhail
    PHYSICA SCRIPTA, 2023, 98 (09)
  • [37] Thermodynamics of methane adsorption on X type zeolites at supercritical temperatures
    Kuznetsova, T. A.
    Tolmachev, A. M.
    Fomenkov, P. E.
    Kryuchenkova, N. G.
    PROTECTION OF METALS AND PHYSICAL CHEMISTRY OF SURFACES, 2016, 52 (01) : 30 - 33
  • [38] Thermodynamics of methane adsorption on X type zeolites at supercritical temperatures
    T. A. Kuznetsova
    A. M. Tolmachev
    P. E. Fomenkov
    N. G. Kryuchenkova
    Protection of Metals and Physical Chemistry of Surfaces, 2016, 52 : 30 - 33
  • [39] The effect of interfacial charge distributions and terminations in LTA zeolites
    Jensen, Bjornar
    Kvamme, Bjorn
    Kuznetsova, Tatiana
    MICROPOROUS AND MESOPOROUS MATERIALS, 2016, 224 : 135 - 142
  • [40] Synthesis of mesoporous LTA zeolites with large BET areas
    Feng, Yan Chao
    Meng, Ying
    Li, Fu Xiang
    Lv, Zhi Ping
    Xue, Jian Wei
    JOURNAL OF POROUS MATERIALS, 2013, 20 (03) : 465 - 471