High-Nuclear Co-Added Polyoxometalate-Based Chain: Electrocatalytic Oxygen Production

Abstract

A high-nuclear Co-added polyoxometalate (CoAP) was synthesized via a hydrothermal reaction: H 14.5 K 9 Na 7. 1). The polyoxoanion of 1 contains a large Co 20 cluster gathered by lacunary GeW 6 O 26 and GeW 9 O 34 subunits. 1 represents a one-dimensional (1D) chain formed by adjacent polyoxoanions coupling through a CoO 6 double bridge, showing the first example of a high-nuclear CoAP-based inorganic chain. 1 served as an efficient electrocatalyst in oxygen evolution reactions (OERs).