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Al-doped α-MnO(2) coated by lignin for high-performance rechargeable aqueous zinc-ion batteries

Zn/MnO(2) batteries, one of the most widely studied rechargeable aqueous zinc-ion batteries, suffer from poor cyclability because the structure of MnO(2) is labile with cycling. Herein, the structural stability of α-MnO(2) is enhanced by simultaneous Al(3+) doping and lignin coating during the forma...

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Autores principales: Xu, Jingliang, Hu, Xinhang, Alam, Md Asraful, Muhammad, Gul, Lv, Yongkun, Wang, Minghai, Zhu, Chenjie, Xiong, Wenlong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9043235/
https://www.ncbi.nlm.nih.gov/pubmed/35493134
http://dx.doi.org/10.1039/d1ra06808c
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author Xu, Jingliang
Hu, Xinhang
Alam, Md Asraful
Muhammad, Gul
Lv, Yongkun
Wang, Minghai
Zhu, Chenjie
Xiong, Wenlong
author_facet Xu, Jingliang
Hu, Xinhang
Alam, Md Asraful
Muhammad, Gul
Lv, Yongkun
Wang, Minghai
Zhu, Chenjie
Xiong, Wenlong
author_sort Xu, Jingliang
collection PubMed
description Zn/MnO(2) batteries, one of the most widely studied rechargeable aqueous zinc-ion batteries, suffer from poor cyclability because the structure of MnO(2) is labile with cycling. Herein, the structural stability of α-MnO(2) is enhanced by simultaneous Al(3+) doping and lignin coating during the formation of α-MnO(2) crystals in a hydrothermal process. Al(3+) enters the [MnO(6)] octahedron accompanied by producing oxygen vacancies, and lignin further stabilizes the doped Al(3+)via strong interaction in the prepared material, Al-doped α-MnO(2) coated by lignin (L + Al@α-MnO(2)). Meanwhile, the conductivity of L + Al@α-MnO(2) improves due to Al(3+) doping, and the surface area of L + Al@α-MnO(2) increases because of the production of nanorod structures after Al(3+) doping and lignin coating. Compared with the reference α-MnO(2) cathode, the L + Al@α-MnO(2) cathode achieves superior performance with durably high reversible capacity (∼180 mA h g(−1) at 1.5 A g(−1)) and good cycle stability. In addition, ex situ X-ray diffraction characterization of the cathode at different voltages in the first cycle is employed to study the related mechanism on improving battery performance. This study may provide ideas of designing advanced cathode materials for other aqueous metal-ion batteries.
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spelling pubmed-90432352022-04-28 Al-doped α-MnO(2) coated by lignin for high-performance rechargeable aqueous zinc-ion batteries Xu, Jingliang Hu, Xinhang Alam, Md Asraful Muhammad, Gul Lv, Yongkun Wang, Minghai Zhu, Chenjie Xiong, Wenlong RSC Adv Chemistry Zn/MnO(2) batteries, one of the most widely studied rechargeable aqueous zinc-ion batteries, suffer from poor cyclability because the structure of MnO(2) is labile with cycling. Herein, the structural stability of α-MnO(2) is enhanced by simultaneous Al(3+) doping and lignin coating during the formation of α-MnO(2) crystals in a hydrothermal process. Al(3+) enters the [MnO(6)] octahedron accompanied by producing oxygen vacancies, and lignin further stabilizes the doped Al(3+)via strong interaction in the prepared material, Al-doped α-MnO(2) coated by lignin (L + Al@α-MnO(2)). Meanwhile, the conductivity of L + Al@α-MnO(2) improves due to Al(3+) doping, and the surface area of L + Al@α-MnO(2) increases because of the production of nanorod structures after Al(3+) doping and lignin coating. Compared with the reference α-MnO(2) cathode, the L + Al@α-MnO(2) cathode achieves superior performance with durably high reversible capacity (∼180 mA h g(−1) at 1.5 A g(−1)) and good cycle stability. In addition, ex situ X-ray diffraction characterization of the cathode at different voltages in the first cycle is employed to study the related mechanism on improving battery performance. This study may provide ideas of designing advanced cathode materials for other aqueous metal-ion batteries. The Royal Society of Chemistry 2021-11-01 /pmc/articles/PMC9043235/ /pubmed/35493134 http://dx.doi.org/10.1039/d1ra06808c Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Xu, Jingliang
Hu, Xinhang
Alam, Md Asraful
Muhammad, Gul
Lv, Yongkun
Wang, Minghai
Zhu, Chenjie
Xiong, Wenlong
Al-doped α-MnO(2) coated by lignin for high-performance rechargeable aqueous zinc-ion batteries
title Al-doped α-MnO(2) coated by lignin for high-performance rechargeable aqueous zinc-ion batteries
title_full Al-doped α-MnO(2) coated by lignin for high-performance rechargeable aqueous zinc-ion batteries
title_fullStr Al-doped α-MnO(2) coated by lignin for high-performance rechargeable aqueous zinc-ion batteries
title_full_unstemmed Al-doped α-MnO(2) coated by lignin for high-performance rechargeable aqueous zinc-ion batteries
title_short Al-doped α-MnO(2) coated by lignin for high-performance rechargeable aqueous zinc-ion batteries
title_sort al-doped α-mno(2) coated by lignin for high-performance rechargeable aqueous zinc-ion batteries
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9043235/
https://www.ncbi.nlm.nih.gov/pubmed/35493134
http://dx.doi.org/10.1039/d1ra06808c
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