Metal-Organic Framework-Derived MnO Nanocrystals Embedded in a Spindle Carbon for Rechargeable Aqueous Zinc Battery with a Molten Hydrate Electrolyte

Liu, Hongwen1,2,3; Chen, Chih-Yao3; Jiang, Jialong1,2; Zhang, Runhao1,2; Zou, Lianli3; Wei, Yong-Sheng3; Cheng, Peng1,2,4; Xu, Qiang3,5; Shi, Wei1,2

2023-06-01

10.1002/sstr.202300071

SMALL STRUCTURES   Impact Factor & Quartile

2688-4062

Rechargeable aqueous zinc batteries (RAZBs) are emerging candidates for large-scale energy storage. However, the lack of high-capacity cathodes because of the electrostatic interactions between Zn2+ and cathode and the inferior electronic conductivity restricts their performance. The operating voltage limitation imposed by water is another barrier for RAZBs. Herein, manganese oxide (MnO) nanocrystals embedded in a spindle carbon matrix (MnO@C) synthesized from a metal-organic framework are used as a cathode. The uniform distribution of fine-sized MnO (approximate to 100 nm) in the carbonized matrix (approximate to 5 mu m) and the intimate connection between them not only increase the utilization of electroactive material but also eliminate the use of conductive additive. By utilizing the molten hydrate electrolyte, ZnCl2 center dot 2.33H(2)O, a discharge voltage plateau approaching 1.60 V and a high reversible capacity of 106 mAh g(-1) after 200 cycles are achieved. This research proposes an approach for affordable RAZBs to fulfill large-scale energy storage.

cathode materials high voltage metal-organic framework derivatives molten hydrates rechargeable aqueous zinc batteries

SCI

English

Corresponding

National Natural Science Foundation of China["21622105","21931004"] ; National Natural Science Foundation of Tianjin[18JCJQJC47200] ; Ministry of Education of China[B12015] ; Shenzhen Key Laboratory of Micro/Nano-Porous Functional Materials (SKLPM)[ZDSYS20210709112802010] ; Guangdong grants[2021ZT09C064] ; China Scholarship Council (CSC)[201906200024] ; Japan Society for the Promotion of Science (JSPS,KAKENHI)[20K15389]

Chemistry ; Science & Technology - Other Topics ; Materials Science

Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:001002699700001

WILEY

Web of Science

1.Nankai Univ, Dept Chem, Key Lab Adv Energy Mat Chem, Minist Educ, Tianjin 300071, Peoples R China
2.Nankai Univ, Coll Chem, Renewable Energy Convers & Storage Ctr, Tianjin 300071, Peoples R China
3.Natl Inst Adv Ind Sci & Technol, AIST Kyoto Univ Chem Energy Mat Open Innovat Lab C, Sakyo Ku, Kyoto 6068501, Japan
4.Haihe Lab Sustainable Chem Transformat, Tianjin 300192, Peoples R China
5.Southern Univ Sci & Technol SUSTech, Shenzhen Key Lab Micro Nanoporous Funct Mat SKLPM, SUSTech Kyoto Univ Adv Energy Mat Joint Innovat La, Dept Chem,Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China

Liu, Hongwen,Chen, Chih-Yao,Jiang, Jialong,et al. Metal-Organic Framework-Derived MnO Nanocrystals Embedded in a Spindle Carbon for Rechargeable Aqueous Zinc Battery with a Molten Hydrate Electrolyte[J]. SMALL STRUCTURES,2023.

Liu, Hongwen.,Chen, Chih-Yao.,Jiang, Jialong.,Zhang, Runhao.,Zou, Lianli.,...&Shi, Wei.(2023).Metal-Organic Framework-Derived MnO Nanocrystals Embedded in a Spindle Carbon for Rechargeable Aqueous Zinc Battery with a Molten Hydrate Electrolyte.SMALL STRUCTURES.

Liu, Hongwen,et al."Metal-Organic Framework-Derived MnO Nanocrystals Embedded in a Spindle Carbon for Rechargeable Aqueous Zinc Battery with a Molten Hydrate Electrolyte".SMALL STRUCTURES (2023).