Boosting Aqueous Zn2+ Storage in 1, 4, 5, 8‐Naphthalenetetracarboxylic Dianhydride through Nitrogen Substitution. Issue 14 (16th July 2019)

• Record Type: Journal Article
• Authors: Wang, Xiaoshuang; Chen, Ling; Lu, Feng; Liu, Jingyan; Chen, Xiangcheng; Shao, Guangjie
• Is Part Of: ChemElectroChem. Volume 6:Issue 14(2019)
• Page Start: 3644
• Page End: 3647
• Publication Date: 2019-07-16
• Subjects: organic materials -- nitrogen substitution -- molecular electrochemistry -- energy conversion -- aqueous Zn2+ batteries; Electrochemistry -- Periodicals; 541.37
• DOI: 10.1002/celc.201900750
• Languages: English
• ISSNs: 2196-0216

Abstract

Abstract: The research of organic materials thrives for lithium‐ion and sodium‐ion batteries but lacks for aqueous Zn 2+ batteries. Herein, we prepared 1, 4, 5, 8‐naphthalene diimide (NTCDI), which is derived from 1, 4, 5, 8‐naphthalenetetracarboxylic dianhydride, through nitrogen substitution with the assistance of ammonia solution. NTCDI is first applied in aqueous Zn 2+ batteries, which can give a high reversible capacity of 240 mAh g −1 at 0.1 A g −1 . The electrochemical kinetics analysis indicates that the diffusion‐control process dominates in the electrode reaction. NTCDI can keep 73.7 % of the initial capacity of 152 mAh g −1 after 2000 continuous charge/discharge cycles at 1 A g −1, showing great potential for zinc storage. Abstract : If the shoe fits : Highly activated 1, 4, 5, 8‐naphthalene diimide (NTCDI) is prepared by dissolving 1, 4, 5, 8‐naphthalenetetracarboxylic dianhydride (NTCDA) in ammonia solution. Two C=O groups of adjacent NTCDI molecules can accommodate Zn 2+ efficiently in aqueous zin‐ion batteries (ZIBs). The contact possibility of Zn 2+ and C=O bonds increases among NTCDI molecules with smaller crystal size, which is conducive to advancing the electrochemical performance. The exploration of NTCDA in ZIBs creates a strategy for designing organic materials for zinc storage.