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Updated: Aug 26, 2025

Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques
Published on: November 11, 2013
Unraveling the superior aqueous Na-ion storage in a multicyano-substituted phenazine-based electrode material
Jing He1, Renyuan Wang1, Lingyun Li1
1School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, P. R. China. chaoyan@just.edu.cn.
Abstract:
A novel cyano-substituted diquinoxalino-phenazine (CDPZ) organic compound was prepared and integrated with graphene to create a heterostructured electrode material for aqueous Na-ion batteries. With active cyano groups and imino moieties in the CDPZ molecule, the CDPZ@G electrode undergoes highly reversible redox reactions upon Na+ uptake/removal, which is confirmed by electrochemical tests, in situ FTIR analysis and DFT calculations. As a result, the composite electrode achieves superior aqueous Na+ storage with a large specific capacity of ∼265.1 mA h g-1, superior to those of reported organic-based electrodes in alkali-ion aqueous electrolytes.
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