Affiliation:
1. Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Institute of New Energy iChEM (Collaborative Innovation Center of Chemistry for Energy Materials) Fudan University Shanghai 200433 China
2. Lab of Advanced Materials State Key Laboratory of Molecular Engineering of Polymers Fudan University Shanghai 200438 China
3. College of Chemistry and Chemical Engineering Donghua University Shanghai 201620 China
Abstract
AbstractP‐type organic electrode materials are known for their high redox voltages and fast kinetics. However, single‐electron p‐type organic materials generally exhibit low capacity despite high operating voltage and stability, while some multi‐electron p‐type organic materials have high theoretical capacity but low stability. To address this challenge, we explore the possibility of combining single‐electron and multi‐electron units to create high‐capacity and stable p‐type organic electrodes. We demonstrate the design of a new molecule, 4,4′‐(10H‐phenothiazine‐3,7‐diyl) bis (N,N‐diphenylaniline) (PTZAN), which is created by coupling the triphenylamine molecule and the phenothiazine molecule. The resulting PTZAN||Zn battery shows excellent stability (2000 cycles), high voltage (1.3 V), high capacity (145 mAh g−1), and energy density of 187.2 Wh kg−1. Theoretical calculations and in/ex situ analysis reveal that the charge storage of the PTZAN electrode is mainly driven by the redox of phenothiazine heterocycles and triphenylamine unit, accompanied by the combination/release of anions and Zn2+.
Funder
Key Technologies Research and Development Program
National Natural Science Foundation of China
Fundamental Research Funds for the Central Universities
Subject
General Chemistry,Catalysis
Cited by
11 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献