A Pyrazine-based Covalent Organic Framework as a Cathode Material for Aqueous Rechargeable Zinc-ion Batteries

Ke-Jun Jin; Ying-Jian Yu

doi:10.1007/s10118-026-3610-0

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A Pyrazine-based Covalent Organic Framework as a Cathode Material for Aqueous Rechargeable Zinc-ion Batteries

RESEARCH ARTICLE | Updated：2026-05-30

- A Pyrazine-based Covalent Organic Framework as a Cathode Material for Aqueous Rechargeable Zinc-ion Batteries
- Chinese Journal of Polymer Science Vol. 44, Issue 6, Pages: 1820-1829(2026)
- Affiliations：
  
  College of Physics Science and Technology, Kunming University, Kunming 650214, China
- Author bio：
  
  yuyingjiankmu@163.com
- Funds：
- DOI：10.1007/s10118-026-3610-0
  CLC：
- Received：28 December 2025，
  
  Accepted：02 February 2026，
  
  Online First：24 April 2026，
  
  Published：05 June 2026
- Accepted：
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Jin, K. J.; Yu, Y. J. A pyrazine-based covalent organic framework as a cathode material for aqueous rechargeable zinc-ion batteries. Chinese J. Polym. Sci. 2026, 44, 1820–1829

Ke-Jun Jin, Ying-Jian Yu. A Pyrazine-based Covalent Organic Framework as a Cathode Material for Aqueous Rechargeable Zinc-ion Batteries[J]. Chinese Journal of Polymer Science, 2026, 44(6): 1820-1829.
Jin, K. J.; Yu, Y. J. A pyrazine-based covalent organic framework as a cathode material for aqueous rechargeable zinc-ion batteries. Chinese J. Polym. Sci. 2026, 44, 1820–1829 DOI： 10.1007/s10118-026-3610-0.

Ke-Jun Jin, Ying-Jian Yu. A Pyrazine-based Covalent Organic Framework as a Cathode Material for Aqueous Rechargeable Zinc-ion Batteries[J]. Chinese Journal of Polymer Science, 2026, 44(6): 1820-1829. DOI： 10.1007/s10118-026-3610-0.

摘要

Aza-COF-1L with dense pyrazine redox sites was synthesized

via

a fast light-assisted method. It exhibits high capacity and stability as a superior cathode for zinc-ion batteries.

Abstract

Aqueous zinc-ion batteries (AZIBs) are safe and cost-effective

making them ideal for large-scale energy storage and wearable electronics. Neverthele

the advancement of AZIB technology faces constraints due to limited energy storage capability and degraded cyclability

primarily attributed to the absence of optimal cathode materials. In this study

two structurally similar but chemically different covalent organic framework materials (Aza-COF-1L and Aza-COF-2) were synthesized. Notably

Aza-COF-1L is easier to synthesize and features abundant pyrazine redox-active sites

a well-defined porous structure

and intrinsic stability. Consequently

Aza-COF-1L exhibited an electrochemical performance superior to that of Aza-COF-2. Aza-COF-1L achieved initial capacities of 368.58

345.96

and 327.82 mAh·g

−1

at 0.1

0.5

and 1 A·g

−1

respectively. After 800 cycles at 1 A·g

−1

Aza-COF-1L maintains a specific capacity of 136.38 mAh·g

−1

. In contrast

Aza-COF-2 exhibited an initial capacity of 117.79 mAh·g

−1

at 0.1 A·g

−1

and its capacity significantly decreased during cycling. Additionally

the contribution of the C＝N pyrazine redox site in Aza-COF-1L to battery capacity during charging and discharging was experimentally analyzed. These results provide valuable guidance for the development of high-performance organic cathode materials for use in AZIBs.

关键词

Keywords

references

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