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	Oxygen vacancy modulated ti2nb10o29-x embedded onto porous bacterial cellulose carbon for highly efficient lithium ion storage
	Deng, Shengjue1,2; Zhang, Yan1,2; Xie, Dong3; Yang, Liang4; Wang, Guizhen4; Zheng, XuSheng5; Zhu, Junfa5; Wang, Xiuli1,2; Yu, Yan6,8; Pan, Guoxiang7
刊名	Nano energy
	2019-04-01
卷号	58页码:355-364
关键词	Bacterial cellulose carbon Porous carbon fibres Ti2nb10o29 Oxygen vacancy Lithium ions batteries
ISSN号	2211-2855
DOI	10.1016/j.nanoen.2019.01.051
通讯作者	Zheng, xusheng(zxs@ustc.edu.cn) ; Yu, yan(yanyumse@ustc.edu.cn) ; Xia, xinhui(helloxxh@zju.edu.cn)
英文摘要	Rational design & modulation of ion/electron transfer paths are critical for achieving high-performance anode materials for lithium ion batteries. in this work, we first time realize smart assembly of oxygen vacancy modulated titanium niobium oxide (ti2nb10o29-x, tnox) onto highly conductive bacterial cellulose carbon (bcc) forming bcc/tnox electrode through a facile solvothermal-annealing method. bcc consists of interlinked (n, s & p) co-doped carbon fibres uniformly decorated with tnox nanoparticles. impressively, the introduction of oxygen vacancy can effectively enhance the internal ion/electron transfer in tnox and enhancement effect is elaborated by synchrotron radiation technology (xanes and xafs) and dft calculation. meanwhile, with the aid of conductive bcc skeleton, the external ion/electron transfer path on tnox is also greatly improved leading to better reaction kinetics. the synergistic dual internal plus external modulation on transfer path show positive advantages including smaller band gap with better electrical conductivity, and larger lattice parameters with faster ion/electron transfer. accordingly, the bcc/tnox electrode is endowed with outstanding lithium ion storage performance with high-rate capability (281 ma h g(-1) at 5 c, and 160.5 ma h g(-1) at 40 c). our finding provides valuable insights into design of other advanced electrodes via dual transfer path modulation strategy.
WOS关键词	ANODE MATERIALS ; MOLYBDENUM BRONZE ; LONG-LIFE ; BATTERY ; ARRAYS ; COMPOSITE ; TINB2O7 ; OXIDE ; CORE
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目	Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000461433600040
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2372725
专题	大连化学物理研究所
通讯作者	Zheng, XuSheng; Yu, Yan; Xia, Xinhui
作者单位	1.Zhejiang Univ, Key Lab Adv Mat & Applicat Batteries Zhejiang Pro, State Key Lab Silicon Mat, Hangzhou 310027, Zhejiang, Peoples R China 2.Zhejiang Univ, Sch Mat Sci & Engn, Hangzhou 310027, Zhejiang, Peoples R China 3.Dongguan Univ Technol, Sch Environm & Civil Engn, Guangdong Engn & Technol Res Ctr Adv Nanomat, Dongguan 523808, Peoples R China 4.Hainan Univ, State Key Lab Marine Resource Utilizat South Chin, Haikou 570228, Hainan, Peoples R China 5.Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Anhui, Peoples R China 6.Univ Sci & Technol China, CAS, Key Lab Mat Energy Convers, Hefei Natl Lab Phys Sci Microscale,Dept Mat Sci &, Hefei 230026, Anhui, Peoples R China 7.Huzhou Univ, Dept Chem Mat, Huzhou 313000, Peoples R China 8.Chinese Acad Sci, Dalian Natl Lab Clean Energy DNL, Dalian, Peoples R China
推荐引用方式 GB/T 7714	Deng, Shengjue,Zhang, Yan,Xie, Dong,et al. Oxygen vacancy modulated ti2nb10o29-x embedded onto porous bacterial cellulose carbon for highly efficient lithium ion storage[J]. Nano energy,2019,58:355-364.
APA	Deng, Shengjue.,Zhang, Yan.,Xie, Dong.,Yang, Liang.,Wang, Guizhen.,...&Tu, Jiangping.(2019).Oxygen vacancy modulated ti2nb10o29-x embedded onto porous bacterial cellulose carbon for highly efficient lithium ion storage.Nano energy,58,355-364.
MLA	Deng, Shengjue,et al."Oxygen vacancy modulated ti2nb10o29-x embedded onto porous bacterial cellulose carbon for highly efficient lithium ion storage".Nano energy 58(2019):355-364.

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