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Hydrogenated Anatase TiO2 as Lithium-Ion Battery Anode: Size-Reactivity Correlation
Zheng, J; Liu, L; Ji, GB; Yang, QF; Zheng, LR; Zhang, J; Zheng LR(郑黎荣); Zhang J(张静)
2016
Source PublicationACS APPLIED MATERIALS & INTERFACES
ISSN1944-8244
EISSN1944-8252
Volume8Issue:31Pages:20074-20081
SubtypeArticle
AbstractAn improved hydrogenation strategy for controllable synthesis of oxygen-deficient anatase TiO2 (H-TiO2) is performed via adjusting the particle size of starting rectangular anatase TiO2 nanosheets from 90 to 30 nm. The morphology and structure characterizations obviously demonstrate that the starting materials of TiO2 nanosheets are transformed into nanoparticles with distinct size reduction; meanwhile, the concentration of oxygen vacancy is gradually increased with the decreasing particle size of starting TiO2. As a result, the Li-storage performance of H-TiO2 is not only much better than that of the pure TiO2 but also elevated stage by stage with the decreasing particle size of starting TiO2; especially the H-TiO2 with highest concentration of oxygen vacancy from smallest TiO2 nanosheets shows the best Li-storage performance with a stable discharge capacity 266 mAh g(-1) after 100 cycles at 1 C. Such excellent performance should be attributed to the joint action from oxygen vacancy and size effect, which promises significant enhancement of high electronic conductivity without weakening Li+ diffusion via hydrogenation strategy.
Keywordanatase TiO2 nanosheets controllable oxygen vacancy hydrogenation process size-reactivity correlation lithium-ion battery anode materials
DOI10.1021/acsami.6b05993
WOS KeywordTITANIUM-DIOXIDE ; NANOTUBE ARRAYS ; PARTICLE-SIZE ; PERFORMANCE ; CAPABILITY ; EFFICIENT ; ELECTRODE
Indexed BySCI
Language英语
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS IDWOS:000381331600028
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/260324
Collection多学科研究中心
Affiliation中国科学院高能物理研究所
Recommended Citation
GB/T 7714
Zheng, J,Liu, L,Ji, GB,et al. Hydrogenated Anatase TiO2 as Lithium-Ion Battery Anode: Size-Reactivity Correlation[J]. ACS APPLIED MATERIALS & INTERFACES,2016,8(31):20074-20081.
APA Zheng, J.,Liu, L.,Ji, GB.,Yang, QF.,Zheng, LR.,...&张静.(2016).Hydrogenated Anatase TiO2 as Lithium-Ion Battery Anode: Size-Reactivity Correlation.ACS APPLIED MATERIALS & INTERFACES,8(31),20074-20081.
MLA Zheng, J,et al."Hydrogenated Anatase TiO2 as Lithium-Ion Battery Anode: Size-Reactivity Correlation".ACS APPLIED MATERIALS & INTERFACES 8.31(2016):20074-20081.
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