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Your search keyword '"Zhang, Chenyang"' showing total 12 results
Start Over Author "Zhang, Chenyang" Publication Year Range Last 50 years Journal angewandte chemie international edition
12 results on '"Zhang, Chenyang"'

4. A donor–acceptor (D–A) conjugated polymer for fast storage of anions.

Author

Fu, Manli, Chen, Yuan, Jin, Weihao, Dai, Huichao, Zhang, Guoqun, Fan, Kun, Gao, Yanbo, Guan, Linnan, Chen, Jizhou, Zhang, Chenyang, Ma, Jing, and Wang, Chengliang

Subjects
ENERGY density, ELECTRODE performance, ELECTRODE potential, CONJUGATED polymers, CHEMICAL kinetics, ANIONS
Abstract

Organic electrode materials have attracted a lot interest in batteries in recent years. However, most of them still suffer from low performance such as low electrode potential, slow reaction kinetics, and short cycle life. In this work, we report a strategy of fabricating donor–acceptor (D–A) conjugated polymers for facilitating the charge transfer and therefore accelerating the reaction kinetics by using the copolymer (p‐TTPZ) of dihydrophenazine (PZ) and thianthrene (TT) as a proof‐of‐concept. The D–A conjugated polymer as p‐type cathode could store anions and exhibited high discharge voltages (two plateaus at 3.82 V, 3.16 V respectively), a reversible capacity of 152 mAh g−1 at 0.1 A g−1, excellent rate performance with a high capacity of 124.2 mAh g−1 at 10 A g−1 (≈50 C) and remarkable cyclability. The performance, especially the rate capability was much higher than that of its counterpart homopolymers without D–A structure. As a result, the p‐TTPZ//graphite full cells showed a high output voltage (3.26 V), a discharge specific capacity of 139.1 mAh g−1 at 0.05 A g−1 and excellent rate performance. This work provides a novel strategy for developing high performance organic electrode materials through molecular design and will pave a way towards high energy density organic batteries. [ABSTRACT FROM AUTHOR]

Published
2024
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7. Highly Selective Transmembrane Transport of Exogenous Lithium Ions through Rationally Designed Supramolecular Channels.

Author

Zhang, Lei, Zhang, Chenyang, Dong, Xin, and Dong, Zeyuan

Subjects
*LITHIUM ions, *ION transport (Biology), *ION channels, *BIOLOGICAL transport, *PSYCHIATRIC treatment, *CALCIUM ions, *POTASSIUM channels
Abstract

Lithium ions have been applied in the clinic in the treatment of psychiatric disorders. In this work, we report artificial supramolecular lithium channels composed of pore‐containing small aromatic molecules. By adjusting the lumen size and coordination numbers, we found that one of the supramolecular channels developed shows unprecedented transmembrane transport of exogenous lithium ions with a Li+/Na+ selectivity ratio of 23.0, which is in the same level of that of natural Na+ channels. Furthermore, four coordination sites inside channels are found to be the basic requirement for ion transport function. Importantly, this artificial lithium channel displays very low transport of physiological Na+, K+, Mg2+, and Ca2+ ions. This highly selective Li+ channel may become an important tool for studying the physiological role of intracellular lithium ions, especially in the treatment of psychiatric disorders. [ABSTRACT FROM AUTHOR]

Published
2023
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9. Successive Storage of Cations and Anions by Ligands of π–d‐Conjugated Coordination Polymers Enabling Robust Sodium‐Ion Batteries

Author

Chen, Yuan, primary, Zhu, Qin, additional, Fan, Kun, additional, Gu, Yuming, additional, Sun, Mingxuan, additional, Li, Zengyu, additional, Zhang, Chenyang, additional, Wu, Yanchao, additional, Wang, Qian, additional, Xu, Shuaifei, additional, Ma, Jing, additional, Wang, Chengliang, additional, and Hu, Wenping, additional

Published
2021
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