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Zhong HY, Lu X, Zhong Y, Zhao Y, Liu XM, Cheng DH, Huang XY, Du KZ, Wu XH. Lithium Storage Performance Boosted via Delocalizing Charge in Zn x Co 1- x PS 3 /CoS 2 of 2D/3D Heterostructure. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2104295. [PMID: 34716655 DOI: 10.1002/smll.202104295] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 08/27/2021] [Indexed: 06/13/2023]
Abstract
A promising anode material consisting of bimetallic thiophosphate Znx Co1- x PS3 and CoS2 with 2D/3D heterostructure is designed and prepared by an effective chemical transformation. Density functional theory calculations illustrate that the Zn2+ can effectively modulate the electrical ordering of Znx Co1- x PS3 on the nanoscale: the reduced charge distribution emerging around the Zn ions can enhance the local built-in electric field, which will accelerate the ions migration rate by Coulomb forces and provide tempting opportunities for manipulating Li+ storage behavior. Moreover, the merits of the large planar size enable Znx Co1- x PS3 to provide abundant anchoring sites for metallic CoS2 nanocubes, generating a 2D/3D heterostructure with a strong electric field. The resultant Znx Co1- x PS3 /CoS2 can offer the combined advantages of bimetallic alloying and heterostructure in lithium storage applications, leading to outstanding performance as an anode material for lithium-ion batteries. Consequently, a high capacity of 794 mA h g-1 can be retained after 100 cycles at 0.2 A g-1 . Even at 3.0 A g-1 , a satisfactory capacity of 465 mA h g-1 can be delivered. The appealing alloying-heterostructure and electrochemical performance of this bimetallic thiophosphate demonstrate its great promise for applications in practical rechargeable batteries.
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Affiliation(s)
- Hou-Yang Zhong
- College of Chemistry and Materials Science, Fujian Provincial Key Laboratory of Polymer Materials, Fujian Normal University, Fuzhou, 350002, China
| | - Xian Lu
- College of Chemistry and Materials Science, Fujian Provincial Key Laboratory of Polymer Materials, Fujian Normal University, Fuzhou, 350002, China
| | - Yu Zhong
- College of Chemistry and Materials Science, Fujian Provincial Key Laboratory of Polymer Materials, Fujian Normal University, Fuzhou, 350002, China
| | - Yi Zhao
- College of Chemistry and Materials Science, Fujian Provincial Key Laboratory of Polymer Materials, Fujian Normal University, Fuzhou, 350002, China
| | - Xin-Ming Liu
- College of Chemistry and Materials Science, Fujian Provincial Key Laboratory of Polymer Materials, Fujian Normal University, Fuzhou, 350002, China
| | - Dan-Hong Cheng
- College of Chemistry and Materials Science, Fujian Provincial Key Laboratory of Polymer Materials, Fujian Normal University, Fuzhou, 350002, China
| | - Xiao-Ying Huang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China
| | - Ke-Zhao Du
- College of Chemistry and Materials Science, Fujian Provincial Key Laboratory of Polymer Materials, Fujian Normal University, Fuzhou, 350002, China
| | - Xiao-Hui Wu
- College of Chemistry and Materials Science, Fujian Provincial Key Laboratory of Polymer Materials, Fujian Normal University, Fuzhou, 350002, China
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Cortés C, Fuentealba P, Manzur J, Pérez-Obando J, Aliaga C, Audebrand N, Aguilar-Bolados H, Spodine E. Influence of the Ni II/Mn II ratio on the physical properties of heterometallic Ni 2xMn (2−2x)P 2S 6 phases and potassium intercalates K 0.8Ni 2xMn (1.6−2x)P 2S 6·2H 2O. NEW J CHEM 2021. [DOI: 10.1039/d0nj04680a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Physical properties of bimetallic NiII/MnII phases obtained by microwave assisted reaction.
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Affiliation(s)
- Catalina Cortés
- Facultad de Ciencias Químicas y Farmacéuticas, U. de Chile
- Chile
- CEDENNA
- Chile
| | - Pablo Fuentealba
- Facultad de Ciencias Químicas y Farmacéuticas, U. de Chile
- Chile
- CEDENNA
- Chile
| | - Jorge Manzur
- Facultad de Ciencias Químicas y Farmacéuticas, U. de Chile
- Chile
| | | | - Carolina Aliaga
- CEDENNA
- Chile
- Facultad de Química y Biología
- Universidad de Santiago de Chile
- Chile
| | - Nathalie Audebrand
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) UMR 6226, F-
- Rennes
- France
| | | | - Evgenia Spodine
- Facultad de Ciencias Químicas y Farmacéuticas, U. de Chile
- Chile
- CEDENNA
- Chile
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