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Boosting iodine conversion via bifunctional NiFe-LDH-decorated cellulose-derived carbon cathodes for durable aqueous
Qian Zhang1, Xixia Zhao1, Guijuan Wei1
1State Key Laboratory of Green Papermaking and Resource Recycling, Faculty of Light Industry, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, P. R. China. zhaoxixia163@163.com.
Chemical Communications (Cambridge, England)
|September 23, 2026
Abstract:
To suppress polyiodide dissolution and sluggish I-/I2 conversion in Zn-I2 batteries, we design a bifunctional CC/NiFe-LDH@I cathode integrating physical confinement and catalytic interfaces. The cellulose-derived carbon paper confines iodine, while NiFe-LDH nanosheets chemically anchor polyiodides and catalyze the I-/I2 redox. This synergy facilitates surface-pseudocapacitive behavior and local iodine enrichment, enabling outstanding durability.