IHEP OpenIR  > 北京同步辐射装置
A Covalent Heterostructure of Metal Phosphide Quantum Dots Anchored in N, P Co-doped Carbon Nanocapsules for Fast and Durable Lithium Storage
BSRF用户
2021
Source PublicationACS APPLIED MATERIALS & INTERFACES
ISSN1944-8244
EISSN1944-8252
Volume13Issue:45Pages:53965--53973
SubtypeArticle
AbstractTransition-metal phosphides (TMPs) anodes for lithium ion batteries (LIBs) usually show poor rate capability and rapid capacity degradation owing to their low electronic conductivities, huge volumetric changes, as well as inferior reversibility of the discharge product Li3P. Herein, a covalent heterostructure with TMPs quantum dots anchored in N, P co-doped carbon nanocapsules (NPC) has been prepared in which the P element in TMPs is simultaneously doped into the carbon matrix. As a proof of concept, Co2P quantum dots covalently anchored in NPC (Co2P QDs/ NPC) is prepared and evaluated as an anode for LIBs. The Co2P QDs/NPC electrode not only demonstrates a high capacity and an extraordinary rate performance but also delivers an impressive cyclability with a high capacity retention of 102.5% after 1600 cycles, one of the best reported values for TMPs-based electrode materials for LIBs. The covalent heterostructure can facilitate the electron/ion transfer and maintain the structural stability during the intensive cycles. Moreover, density functional theory calculations demonstrate that the interfacial covalent coupling can enhance the electrochemical reversibility of the discharge product Li3P in the charge processes via lowering the conversion reaction energies. This work presents an effective interfacial engineering strategy for developing high-performance TMPs anodes for advanced LIBs.
DOI10.1021/acsami.1c16730
Indexed BySCI
Language英语
WOS Research AreaScience & Technology - Other Topics ; Materials Science
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS IDWOS:000752873200004
ItemNoBSRF00774
beamlineXAFS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/293542
Collection北京同步辐射装置
Recommended Citation
GB/T 7714
BSRF用户. A Covalent Heterostructure of Metal Phosphide Quantum Dots Anchored in N, P Co-doped Carbon Nanocapsules for Fast and Durable Lithium Storage[J]. ACS APPLIED MATERIALS & INTERFACES,2021,13(45):53965--53973.
APA BSRF用户.(2021).A Covalent Heterostructure of Metal Phosphide Quantum Dots Anchored in N, P Co-doped Carbon Nanocapsules for Fast and Durable Lithium Storage.ACS APPLIED MATERIALS & INTERFACES,13(45),53965--53973.
MLA BSRF用户."A Covalent Heterostructure of Metal Phosphide Quantum Dots Anchored in N, P Co-doped Carbon Nanocapsules for Fast and Durable Lithium Storage".ACS APPLIED MATERIALS & INTERFACES 13.45(2021):53965--53973.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[BSRF用户]'s Articles
Baidu academic
Similar articles in Baidu academic
[BSRF用户]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[BSRF用户]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
[Comments/Objections/Suggestion]
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.