Influence of spherical and cubical geometry of silver nanoparticles on thermal characteristics

Azizi, Alireza1; Pan, Anqiang1; Momen, Roya2,3

2023-09-01

10.22059/JCAMECH.2023.363631.860

JOURNAL OF COMPUTATIONAL APPLIED MECHANICS   影响因子和分区

2423-6713

2423-6705

Antibacterial activity of silver nanoparticles with spherical or cubic shapes in medical science will render it attractive. Considering the physical characteristics like thermal features as crucial factors are essential for choosing nanospheres or nanocubes with respect to operating temperature and stability. Therefore, this research probes the melting process, the surface premelting points (T-sm), the complete melting point (T-m), the phase transition, and the specific heat capacity at a constant volume (C-v) of silver nanospheres and nanocubes via a molecular dynamics approach. Regarding these aims, different approaches have been employed to achieve high accuracy. The results indicate that the geometry of nanoparticles dramatically influences the T-sm and T-m, and nanocubes have lower T-sm and T-m than nanospheres. Moreover, the nanocubes are melted from corners toward the cube center while the nanospheres melt in the radius direction. In contrast, C-v of silver nanospheres and nanocubes is almost identical, demonstrating that the C-v is independent of geometry. In addition, the values of C-v for the nanoparticles are close to the bulk value, which indicates that by changing the dimension of silver from bulk to nanoparticles, the specific heat capacity will not change, and this value is an intensive property.

Melting process Nanospheres Nanocubes Silver Surface premelting Specific heat capacity

ESCI

英语

通讯

Mechanics

Mechanics

WOS:001160047400004

UNIV TEHRAN, DANISHGAH-I TIHRAN

Web of Science

1.Cent South Univ, Sch Mat Sci & Engn, Changsha 410083, Hunan, Peoples R China
2.Southern Univ Sci & Technol, Dept Chem, Shenzhen 518055, Peoples R China
3.Southern Univ Sci & Technol, Shenzhen Grubbs Inst, Shenzhen 518055, Peoples R China

Azizi, Alireza,Pan, Anqiang,Momen, Roya. Influence of spherical and cubical geometry of silver nanoparticles on thermal characteristics[J]. JOURNAL OF COMPUTATIONAL APPLIED MECHANICS,2023,54(3).

Azizi, Alireza,Pan, Anqiang,&Momen, Roya.(2023).Influence of spherical and cubical geometry of silver nanoparticles on thermal characteristics.JOURNAL OF COMPUTATIONAL APPLIED MECHANICS,54(3).

Azizi, Alireza,et al."Influence of spherical and cubical geometry of silver nanoparticles on thermal characteristics".JOURNAL OF COMPUTATIONAL APPLIED MECHANICS 54.3(2023).