High-Coordination and Nb-Bridging of Bimetallic Amorphous P₆-Nb-W-P₅ Clusters in Carbon Nanospheres for High-Performance Sodium-Ion Hybrid Capacitors.

ABSTRACT: Amorphous clusters are gaining prominence as prospective hosts for sodium-ion hybrid capacitors (SIHCs), but their efficacy is still affected by atomic coordination. Optimization of ion storage and charge transport can be achieved through high coordination and bimetallic configurations. Herein, high-coordination amorphous P₆-Nb-W-P₅ (Nb/W-P) clusters are skillfully tailored by bridging Nb into the second shell of W in the W-P₅ configuration, nested in situ in conductive and stable N, P co-doped carbon nanospheres (Nb/W-P@NPC). Such clusters with high atom utilization can offer profuse Na⁺ storage sites due to their high coordination. As an electron donor, Nb-bridging can subtly modify the electronic structure of clusters, and broaden the hybridiz

SUBMITTER: Hu S 

PROVIDER: S-EPMC11923884 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature