摘要
改进了用于模拟二元金属团簇稳定结构的自适应免疫优化算法(称为Tri-AIOA),并将其应用于三元金属Ag-Pd-Pt团簇的结构优化。对原子数为19的Ag-Pd-Pt团簇的优化结果表明,Tri-AIOA具有较强的优化能力和效率。该方法也被用于模拟原子数为55的Ag_nPd_(43)Pt_(12)(n=1-42)团簇稳定结构,优化结果被分为27个Mackay二十面体结构、4个五折叠饼状结构、以及11个由3个双二十面体面面相连构成的环状结构。优化结果为Ag-Pd-Pt团簇的性质研究提供了理论依据。
Adaptive immune optimization algorithm is improved for global optimization of Ag-Pd-Pt trimetallic clusters.By the structural optimization of 19-atom Ag-Pd-Pt clusters,the results show that the proposed method is a more efficient approach for global optimization of trimetallic clusters.For the optimized structures of Ag_nPd_(43-n)Pt_(12)(n = 1-42),the clusters can be categorized into 27 Mackay icosahedral structures,4 five-fold pancake structure,and 11 ring-like structures linked by three face-sharing double-icosahedra.
出处
《计算机与应用化学》
CAS
CSCD
北大核心
2012年第2期137-141,共5页
Computers and Applied Chemistry
基金
国家自然科学基金资助项目(21171008)