Vollath Dieter
NanoConsulting, Primelweg 3, Stutensee 76297, Germany.
Beilstein J Nanotechnol. 2020 Jun 2;11:854-857. doi: 10.3762/bjnano.11.70. eCollection 2020.
Nanoparticles tend to agglomerate. The process of agglomeration is ruled by thermodynamics. Depending on the sign of the enthalpy of interaction, ensembles consist of (repelling) poorly agglomerated or (attracting) highly agglomerated particles. For these two cases different distribution functions for the agglomerates were found. The size distribution of the agglomerates is ruled by the maximum of the entropy of the ensemble of agglomerates, which is calculated using Gibbs formula of entropy. The exact determination of the size distribution of the agglomerates also gives the maximum size of the agglomerates. These considerations lead to an improved understanding of ensembles of agglomerated nanoparticles.
纳米颗粒往往会发生团聚。团聚过程受热力学支配。根据相互作用焓的正负，团聚体集合由（相互排斥）团聚程度低的或（相互吸引）团聚程度高的颗粒组成。对于这两种情况，发现了不同的团聚体分布函数。团聚体的尺寸分布由团聚体集合熵的最大值决定，该熵使用吉布斯熵公式计算。准确确定团聚体的尺寸分布也能得出团聚体的最大尺寸。这些考虑有助于更好地理解团聚纳米颗粒的集合。
