“…In summary, during chemisorption, there is a shift of electron charge from the 4f orbital (Pr) to the 3d orbital (Si) and a small part to 5p(Pr) of the Pr/ASiNRs system (see Figure 4). The results also correspond to the studies on the adsorption of metals on SiNRs or gemanene, graphene that the authors presented (Chen et al, 2013;Nzar Rauf Abdullahab et al, 2021;Pang et al, 2015;Wenhao Liu et al, 2017;Daniel Bahamon et al, 2021;Kent Gang et al, 2013;Yongxiu Sun et al, 2019;Vogt et al, 2012;Paola et al, 2011).…”