Aqueous solutions of super reduced polyoxotungstates as electron storage systems.

ABSTRACT: Due to the increasing energy density demands of battery technology, it is vital to develop electrolytes with high electron storage capacity. Polyoxometalate (POM) clusters can act as electron sponges, storing and releasing multiple electrons and have potential as electron storage electrolytes for flow batteries. Despite this rational design of clusters for high storage ability can not yet be achieved as little is known about the features influencing storage ability. Here we report that the large POM clusters, {P₅W₃₀} and {P₈W₄₈}, can store up to 23 e^- and 28 e^- per cluster in acidic aqueous solution, respectively. Our investigations reveal key structural and speciation factors influencing the improved behaviour of these POMs

SUBMITTER: Zhao T 

PROVIDER: S-EPMC10265398 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature