High-Temperature Pyrolysis Regulation of Schiff Base 3 d Coordination Clusters for Electrochemical Application

Abstract

3Dtransition metal coordination clusters, as structurally diverse and designable metal-organic hybrid systems, enable deliberate modulation of active sites and bridging motifs within their structural kernels, making them ideal precursors for tailored nanostructures via pyrolysis. Through precise control over metal/organic ratios, the composition, spatial configuration, and electronic structure of derived nanomaterials can be effectively regulated, holding great promise for establishing structure-property relations and achieving optimized functional materials. In this review, nanostructures of Schiff base coordination clusters to control and optimize electrochemical energy storage/conversion performances. Specifically, coordination framework engineered clusters have been pyrolyzed into electrode materials for supercapacitors and electrocatalysts for oxygen/hydrogen evolution reactions, exhibiting significantly enhanced capacitance and catalytic activity. Furthermore, perspectives are provided on employing molecular-level design principles of clusters in combination with pyrolysis optimization to develop next-generation customized energy systems. Additional investigation into structure-performance interdependencies will shed light on targeted optimization of cluster-derived nanostructures.