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Amidation-Dominated Re-Assembly Strategy for Single-Atom Design/Nano-Engineering: Constructing Ni/S/C Nanotubes with Fast and Stable K-Storage
Yi, Zheng1; Jiang, Song1; Tian, Jie2; Qian, Yong1; Chen, Shimou3; Wei, Shiqiang4; Lin, Ning1; Qian, Yitai1
2020-02-26
Source PublicationANGEWANDTE CHEMIE-INTERNATIONAL EDITION
ISSN1433-7851
Pages8
Abstract

An amidation-dominated re-assembly strategy is developed to prepare uniform single atom Ni/S/C nanotubes. In this re-assembly process, a single-atom design and nano-structured engineering are realized simultaneously. Both the NiO5 single-atom active centers and nanotube framework endow the Ni/S/C ternary composite with accelerated reaction kinetics for potassium-ion storage. Theoretical calculations and electrochemical studies prove that the atomically dispersed Ni could enhance the convention kinetics and decrease the decomposition energy barrier of the chemically-absorbed small-molecule sulfur in Ni/S/C nanotubes, thus lowering the electrode reaction overpotential and resistance remarkably. The mechanically stable nanotube framework could well accommodate the volume variation during potassiation/depotassiation process. As a result, a high K-storage capacity of 608 mAh g(-1) at 100 mA g(-1) and stable cycling capacity of 330.6 mAh g(-1) at 1000 mA g(-1) after 500 cycles are achieved.

KeywordKinetics K-ion Batteries Nanoengineering Single-atom Ni Small-molecule Sulfur
DOI10.1002/anie.201916370
Language英语
WOS KeywordDoped Carbon ; Ion ; Anodes ; Sites ; Iron
Funding ProjectNational Natural Science Foundation of China[21701163] ; National Natural Science Foundation of China[21671181] ; National Natural Science Foundation of China[21831006] ; Anhui Provincial Natural Science Foundation[1808085QB25]
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
Funding OrganizationNational Natural Science Foundation of China ; Anhui Provincial Natural Science Foundation
WOS IDWOS:000516158000001
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/39540
Collection中国科学院过程工程研究所
Corresponding AuthorLin, Ning; Qian, Yitai
Affiliation1.Univ Sci & Technol China, Dept Appl Chem, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China
2.Univ Sci & Technol China, Expt Ctr Engn & Mat Sci, Hefei 230026, Anhui, Peoples R China
3.Chinese Acad Sci, Beijing Key Lab Ion Liquid Clean Proc, CAS Key Lab Green Proc & Engn, Inst Proc Engn, Beijing 100190, Peoples R China
4.Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230026, Anhui, Peoples R China
Recommended Citation
GB/T 7714
Yi, Zheng,Jiang, Song,Tian, Jie,et al. Amidation-Dominated Re-Assembly Strategy for Single-Atom Design/Nano-Engineering: Constructing Ni/S/C Nanotubes with Fast and Stable K-Storage[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2020:8.
APA Yi, Zheng.,Jiang, Song.,Tian, Jie.,Qian, Yong.,Chen, Shimou.,...&Qian, Yitai.(2020).Amidation-Dominated Re-Assembly Strategy for Single-Atom Design/Nano-Engineering: Constructing Ni/S/C Nanotubes with Fast and Stable K-Storage.ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,8.
MLA Yi, Zheng,et al."Amidation-Dominated Re-Assembly Strategy for Single-Atom Design/Nano-Engineering: Constructing Ni/S/C Nanotubes with Fast and Stable K-Storage".ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2020):8.
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