Perinone with fast proton insertion chemistry for durable aqueous zinc battery

IF 13.3 1区 工程技术 Q1 ENGINEERING, CHEMICAL Chemical Engineering Journal Pub Date : 2025-03-16 DOI:10.1016/j.cej.2025.161650
Yixiao Yang, Qing Lang, Jian Zhang, Jiayuan Yu, Jiulong Che, Qi Fan, Kun Liang, Gang Wang
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Abstract

Organic materials are highly promising for application in aqueous zinc-ion batteries (ZIBs) due to environmental friendliness and structural flexibility. However, high solubility and poor conductivity of organic materials are two key challenges that lead to unsatisfactory battery performance. Herein, polycyclic perinone molecule is proposed as a robust cathode material for ZIBs because of its abundant redox-active groups and high-coplanar, extensive π-conjugation based on the aromatic skeleton. The unique molecule structure and low band gap endow perinone with high redox activity and excellent cycling stability. The perinone electrode delivers a specific capacity of 118 mAh/g under a two-electron redox process. Moreover, high capacity retention of 100 % is achieved after long-term cycling as well as high rate capability. The majority of capacity at 0.1 A/g is well preserved even at 10 A/g, which is superior to conventional organic materials. Advanced characterizations reveal that rather than Zn2+, hydrated proton (H+·(H2O)n) and pure H+ are inserted into perinone molecules in a staging manner. Our work provides new insights into molecular structure design for durable and high-rate energy storage.
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来源期刊
Chemical Engineering Journal
Chemical Engineering Journal 工程技术-工程:化工
CiteScore
21.70
自引率
9.30%
发文量
6781
审稿时长
2.4 months
期刊介绍: The Chemical Engineering Journal is an international research journal that invites contributions of original and novel fundamental research. It aims to provide an international platform for presenting original fundamental research, interpretative reviews, and discussions on new developments in chemical engineering. The journal welcomes papers that describe novel theory and its practical application, as well as those that demonstrate the transfer of techniques from other disciplines. It also welcomes reports on carefully conducted experimental work that is soundly interpreted. The main focus of the journal is on original and rigorous research results that have broad significance. The Catalysis section within the Chemical Engineering Journal focuses specifically on Experimental and Theoretical studies in the fields of heterogeneous catalysis, molecular catalysis, and biocatalysis. These studies have industrial impact on various sectors such as chemicals, energy, materials, foods, healthcare, and environmental protection.
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