computational chemistry;
density functional theory;
transition metal surfaces;
strain;
surface science;
TOTAL-ENERGY CALCULATIONS;
ADSORPTION PROPERTIES;
METAL NANOPARTICLES;
REACTIVITY;
TRANSITION;
D O I:
10.1002/cphc.202000694
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:
Density functional theory calculations of atomic and molecular adsorption on (111) and (100) metal surfaces reveal marked surface and structure dependent effects of strain. Adsorption in three-fold hollow sites is found to be destabilized by compressive strain whereas the reversed trend is commonly valid for adsorption in four-fold sites. The effects, which are qualitatively explained using a simple two-orbital model, provide insights on how to modify chemical properties by strain design.