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Hydrogenated Oxygen-Deficient Blue Anatase as Anode for High-Performance Lithium Batteries
Zheng J.; Y. Liu; G. Ji; P. Zhang; X. Cao; B. Wang; C. Zhang; X. Zhou; Y. Zhu and D. Shi; 张鹏(正); Cao XZ(曹兴忠); Wang BY(王宝义)
2015
Source PublicationACS APPLIED MATERIALS & INTERFACES
ISSN1944-8244
EISSN1944-8252
Volume7Issue:42Pages:23431-23438
SubtypeArticle
AbstractBlue oxygen-deficient nanopartides of anatase TiO2 (H-TiO2) are synthesized using a modified hydrogenation process. Scanning electron microscope and transmission electron microscope images clearly demonstrate the evident change of the TiO2 morphology, from 60 nm rectangular nanosheets to much smaller round or oval nanopartides of similar to 17 nm, after this hydrogenation treatment. Importantly, electron paramagnetic resonance and positronium annihilation lifetime spectroscopy confirm that plentiful oxygen vacancies accompanied by Ti3+ are created in the hydrogenated samples with a controllable concentration by altering hydrogenation temperature. Experiments and theory calculations demonstrate that the well-balanced Li+/e(-) transportation from a synergetic effect between Ti3+/oxygen vacancy and reduced size promises the optimal H-TiO2 sample a high specific capacity, as well as greatly enhanced cycling stability and rate performance in comparison with the other TiO2.
Keywordanatase TiO2 hydrogenation treatment oxygen vacancy dependence Li-storage performance synergetic effect
Subject AreaScience & Technology - Other Topics; Materials Science
DOI10.1021/acsami.5b07000
Indexed BySCI ; EI
Language英语
WOS Research AreaNanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS SubjectScience & Technology - Other Topics ; Materials Science
WOS IDWOS:000363994700009
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/228985
Collection多学科研究中心
Recommended Citation
GB/T 7714
Zheng J.,Y. Liu,G. Ji,et al. Hydrogenated Oxygen-Deficient Blue Anatase as Anode for High-Performance Lithium Batteries[J]. ACS APPLIED MATERIALS & INTERFACES,2015,7(42):23431-23438.
APA Zheng J..,Y. Liu.,G. Ji.,P. Zhang.,X. Cao.,...&王宝义.(2015).Hydrogenated Oxygen-Deficient Blue Anatase as Anode for High-Performance Lithium Batteries.ACS APPLIED MATERIALS & INTERFACES,7(42),23431-23438.
MLA Zheng J.,et al."Hydrogenated Oxygen-Deficient Blue Anatase as Anode for High-Performance Lithium Batteries".ACS APPLIED MATERIALS & INTERFACES 7.42(2015):23431-23438.
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