A Molecular Dynamics Simulation of Lithium Fluoride: Volume Phase and Nanosized Particle

被引:5
作者
Andreev, O. L. [1 ]
Raskovalov, A. A. [2 ]
Larin, A. V. [2 ]
机构
[1] Russian Acad Sci, Ural Div, Inst High Temp Electrochem, Ekaterinburg 620219, Russia
[2] Ural State Univ, Ekaterinburg 620083, Russia
关键词
SOLID ELECTROLYTES; IONIC-CONDUCTIVITY;
D O I
10.1134/S0036024410010103
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The PC GAMESS package was used to obtain interionic pair potentials for lithium fluoride. A molecular dynamics simulation of the volume phase and nanosized LiF particle was performed. The temperatures of fusion and self-diffusion coefficients of the volume phase and lithium fluoride nanoparticle were found; for the volume phase, they were close to the experimental data. The temperature of fusion of a particle similar to 2 angstrom in diameter decreased by similar to 600 K. The possibility of a considerable increase in ionic conductivity over the temperature range 520-1122 K was demonstrated for nanosized LiF.
引用
收藏
页码:48 / 52
页数:5
相关论文
共 20 条
[1]   Superionic solids: composite electrolyte phase - an overview [J].
Agrawal, RC ;
Gupta, RK .
JOURNAL OF MATERIALS SCIENCE, 1999, 34 (06) :1131-1162
[2]  
Batalov N. N., 1995, ELEKTROKHIMIYA, V31, P394
[3]  
Burmakin E. I., 1992, SOLID ELECTROLYTES A
[4]  
CLOTTI G, 1976, PHYS REV A, V13, P4261
[5]  
Glushko V.P., 1986, THERMODYNAMICAL PROP
[6]  
IVANOVSHITS AK, 2000, IONICS SOLID
[7]  
JASKON BJH, 1969, J PHYS CHEM SOLIDS, V30, P1973
[8]  
KOBEKO PP, 1952, AMORPHOUS SUBSTANCES
[9]   PARTICLE-SIZE EFFECT ON IONIC-CONDUCTIVITY IN NACL-AL2O3 COMPOSITE SOLID ELECTROLYTES [J].
KUMAR, A ;
SHAHI, K .
SOLID STATE COMMUNICATIONS, 1995, 94 (09) :813-816
[10]   STRUCTURE AND MOTION IN LIQUID BEF2, LEBEF3, AND LIF FROM MOLECULAR DYNAMICS CALCULATIONS [J].
RAHMAN, A ;
NARTEN, AH ;
FOWLER, RH .
JOURNAL OF CHEMICAL PHYSICS, 1972, 57 (07) :3010-&