Ultrafine ZnS Nanoparticles in the Nitrogen-Doped Carbon Matrix for Long-Life and High-Stable Potassium-Ion Batteries
作者:Xu, XJ (Xu, Xijun)[ 1,2 ] ; Zhang, DC (Zhang, Dechao)[ 1,2 ] ; Wang, ZS (Wang, Zhuosen)[ 1,2 ] ; Zuo, SY (Zuo, Shiyong)[ 1,2 ] ; Yuan, JJ (Yuan, Jujun)[ 3 ] ; Hu, RZ (Hu, Renzong)[ 1,2 ] ; Liu, J (Liu, Jun)[ 1,2,3 ]
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ACS APPLIED MATERIALS & INTERFACES
卷: 13 期: 9 页: 11007-11017
DOI: 10.1021/acsami.0c23136
出版年: MAR 10 2021
文献类型:Article
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摘要
Potassium-ion batteries (KIBs) have attracted researchers' widespread attention because of the luxuriant reserves of potassium salts and their low cost. Nevertheless, the absence of suitable electrode materials with a stable electrochemical property is a crucial issue, which seriously hampers the practical applications of KIBs. Herein, a scalable anode material consisting of ultrafine ZnS nanoparticles encapsulated in three-dimensional (3D) carbon nanosheets is explored for KIBs. This hierarchical anode is obtained via a simple and universal sol-gel method combined with a typical solid-phase sulfidation route. The special structure of this anode facilitates good contact with electrolytes and has enough voids to buffer the large volumetric stress changing during K+ insertion/extraction. Thus, the 3D ZnS@C electrode exhibitsour stable cycling performance (230 mAh g(-1) over 2300 cycles at 1.0 A g(-1)) and superior rate capability. The kinetic analysis indicates that a ZnS@C anode with considerable pesoudecapactive contribution benefits a fast potassium/depotassium process. Detailed ex-situ and in-situ measurements reveal that this ZnS@C anode combines reversible conversion and alloying-type reactions. This rationally designed ZnS@C material is highly applicable for KIBs, and the current route opens an avenue for the development of highly stable K+ storage materials.
关键词
作者关键词:ZnS@C; 3D cross-linked nanosheets; anode; K-ion batteries; carbon encapsulation
作者信息
通讯作者地址:
South China University of Technology South China Univ Technol, Sch Chem & Chem Engn, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510641, Guangdong, Peoples R China.
South China University of Technology South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510641, Guangdong, Peoples R China.
Gannan Normal University Gannan Normal Univ, Sch Phys & Elect, Ganzhou 341000, Peoples R China.
通讯作者地址: Liu, J (通讯作者)
显示更多 South China Univ Technol, Sch Chem & Chem Engn, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510641, Guangdong, Peoples R China.
通讯作者地址: Liu, J (通讯作者)
显示更多 South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510641, Guangdong, Peoples R China.
通讯作者地址: Liu, J (通讯作者)
显示更多 Gannan Normal Univ, Sch Phys & Elect, Ganzhou 341000, Peoples R China.
地址:
显示更多 [ 1 ] South China Univ Technol, Sch Chem & Chem Engn, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510641, Guangdong, Peoples R China
显示更多 [ 2 ] South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510641, Guangdong, Peoples R China
显示更多 [ 3 ] Gannan Normal Univ, Sch Phys & Elect, Ganzhou 341000, Peoples R China
电子邮件地址:msjliu@scut.edu.cn
基金资助致谢
基金资助机构显示详情 授权号
National Natural Science Foundation of China (NSFC)
51771076
China Postdoctoral Science Foundation
2020M672622
R&D program in the Key Areas of Guangdong Province
2020B0101030005
Guangdong Pearl River Talents Plan
2017GC010218
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出版商
AMER CHEMICAL SOC, 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
期刊信息
Impact Factor (影响因子): Journal Citation Reports
类别 / 分类
研究方向:Science & Technology - Other Topics; Materials Science
Web of Science 类别:Nanoscience & Nanotechnology; Materials Science, Multidisciplinary