摘要
The full utilization of active metal sites is meaningful for enhancing the application of materials in the energy storage field.In this study,a nickel-based nanosphere(NiSA-SSA-Co)precursor was obtained via effective doping based on a dual-ligand complex.With thermal activation,the pore microstructure of the precursor was modulated,and a transition state complex(NiSA-SSA-Co-350)was fabricated.NiSA-SSA-Co-350 not only retains part of the framework structure,but also fully exposes the metal nodes and enhances the efficiency of the active sites.NiSA-SSA-Co-350 exhibits optimal conductivity and intrinsic reactivity when applied as an electrode material for nickel-zinc batteries(NZBs).In contrast to the precursor,NiSA-SSA-Co-350with large specific surface area shows a higher specific capacity(0.30 mAh cm^(-2)at 3 mA cm^(-2)).This work hopefully provides a new perspective on the study of nanomaterial porosity in energy storage applications.
基金
supported by the National Natural Science Foundation of China(52371240)
the Postgraduate Research&Practice Innovation Program of Jiangsu Province(KYCX23_3511)。
