Ag²⁺_(b) species were detected by electron paramagnetic resonance (EPR) on silver loaded over ceria by impregnation in a previous work. Contrasting the EPR simulation with the experimental measurements evidenced that, upon propene oxidation, the Ag²⁺_(b) species transform into two clusters each containing 2 Ag²⁺ and 1 Ag⁺ species. This cluster is composed of two parallel electron spins (dimer) and three nuclear spins (trimer). Such a result led us to suggest that initially, Ag²⁺_(b) species clusters were formed by three parallel electron spins. The ferromagnetic character of Ag²⁺_(b) species may explain their catalytic performance towards total oxidation of propylene.

在先前的工作中，通过浸渍在氧化铈上的银上，通过电子顺磁共振（EPR）检测到Ag ²⁺ _（b）物种。将EPR模拟与实验测量结果进行对比，结果表明，丙烯氧化后，Ag ²⁺ _（b）物种转变为两个簇，每个簇包含2个Ag ²⁺和1个Ag ⁺物种。该簇由两个平行的电子自旋（二聚体）和三个核自旋（三聚体）组成。这样的结果使我们认为，最初，Ag ²⁺ _（b）物种簇是由三个平行的电子自旋形成的。Ag ²⁺ _（b）的铁磁特性 物种可能解释了它们对丙烯完全氧化的催化性能。