Hydrogenated Anatase TiO2 as Lithium-Ion Battery Anode: Size-Reactivity Correlation

doi:10.1021/acsami.6b05993

	Hydrogenated Anatase TiO2 as Lithium-Ion Battery Anode: Size-Reactivity Correlation
	Zhang J(张静); Zheng, J; Liu, L; Ji, GB; Yang, QF; Zheng, LR; Zhang, J; Zheng LR(郑黎荣)
刊名	ACS APPLIED MATERIALS & INTERFACES
	2016
卷号	8 期号:31 页码:20075-20082
关键词	anatase TiO2 nanosheets controllable oxygen vacancy hydrogenation process size-reactivity correlation lithium-ion battery anode materials
DOI	10.1021/acsami.6b05993
英文摘要	An 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.
语种	英语
WOS记录号	WOS:000381331600028
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/260324]
专题	高能物理研究所_多学科研究中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Zhang J,Zheng, J,Liu, L,et al. Hydrogenated Anatase TiO2 as Lithium-Ion Battery Anode: Size-Reactivity Correlation[J]. ACS APPLIED MATERIALS & INTERFACES,2016,8(31):20075-20082.
APA	张静.,Zheng, J.,Liu, L.,Ji, GB.,Yang, QF.,...&郑黎荣.(2016).Hydrogenated Anatase TiO2 as Lithium-Ion Battery Anode: Size-Reactivity Correlation.ACS APPLIED MATERIALS & INTERFACES,8(31),20075-20082.
MLA	张静,et al."Hydrogenated Anatase TiO2 as Lithium-Ion Battery Anode: Size-Reactivity Correlation".ACS APPLIED MATERIALS & INTERFACES 8.31(2016):20075-20082.