第一作者：Yao Wang

通讯作者：Shanshan Gong,Hong-bin Sun

合写作者：Suyan Niu,Na Ju, Tong Jiang, Yiming Wang, Xinyue Zhang, Qi Sun

发表刊物：Small Methods

影响因子：10.7

DOI码：10.1002/smtd.202301301

所属单位：Department of ChemistryNortheastern University

教研室：物理化学

刊物所在地：GERMANY

摘要：Organic cathode materials for aqueous rechargeable zinc batteries (ARZBs) are rapidly gaining prominence, while the exploration of compounds with affordable synthesis, satisfactory electrochemical performance, and understandable mechanisms still remains challenging. In this study, 6,8,15,17-tetraaza-heptacene-5,7,9,14,16,18-hexaone (TAHQ) as an easily synthesized organic cathode material with novel quinone/pyrazine alternately conjugated molecule structure is presented. This organic electrode exhibits good capacity with highly reversible redox reactions, and the influence of multi-active structures on the Zn2+/H loading behavior is systematically investigated by ex situ spectroscopy, electrochemical tests, and computation. Both experimental and theoretical studies effectively address the Zn+2+/H intercalation/deintercalation kinetics. Benefitting from the fused active functionalities, the assembled Zn//TAHQ battery displays a maximum discharge specific capacity of 254.3 mAh g+−1 at 0.5 A g−1, and it maintains remarkable cycle performance with 71% capacity retention after 1000 cycles under 5 A g−1.

论文编号：WOS:001137318400001

学科门类：理学

一级学科：化学

页面范围：2301301

ISSN号：2366-9608

是否译文：否