Highly efficient solid-state synthesis of carbon-encapsulated ultrafine MoO2 nanocrystals as high rate lithium-ion battery anode

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	Highly efficient solid-state synthesis of carbon-encapsulated ultrafine MoO2 nanocrystals as high rate lithium-ion battery anode
	Liu BY; Shao YF(邵颖峰); Zhang YL; Zhang FH; Zhong N; Li WG
刊名	JOURNAL OF NANOPARTICLE RESEARCH
	2016
通讯作者邮箱	byliu@shmtu.edu.cn ; shaoyf@lnm.imech.ac.cn ; ylzhang@shmtu.edu.cn ; fhzhang@shmtu.edu.cn ; ningzhong@shmtu.edu.cn ; wgli@shmtu.edu.cn
卷号	18 期号:12 页码:375
ISSN号	1388-0764
通讯作者	Liu, BY (reprint author), Shanghai Maritime Univ, Coll Ocean Sci & Engn, Shanghai 201306, Peoples R China. ; Shao, YF (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.
产权排序	[Liu, Boyang; Zhang, Yuliang; Zhang, Fuhua; Zhong, Ning] Shanghai Maritime Univ, Coll Ocean Sci & Engn, Shanghai 201306, Peoples R China; [Shao, Yingfeng] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; [Li, Wenge] Shanghai Maritime Univ, Merchant Marine Coll, Shanghai 201306, Peoples R China
中文摘要	A simple and highly efficient method is developed for the one-step in situ preparation of carbon-encapsulated MoO2 nanocrystals (MoO2@C) with core-shell structure for high-performance lithium-ion battery anode. The synthesis is depending on the solid-state reaction of cyclopentadienylmolybdenum tricarbonyl dimer with ammonium persulfate in an autoclave at 200 degrees C for 30 min. The large amount of heat generated during the explosive reaction cleaves the cyclopentadiene ligands into small carbon fragments, which form carbon shell after oxidative dehydrogenation coating on the MoO2 nanocrystals, resulting in the formation of core-shell structure. The MoO2 nanocrystals have an equiaxial morphology with an ultrafine diameter of 2-8 nm, and the median size is 4.9 nm. Hundreds of MoO2 nanocrystals are encapsulated together by the worm-like carbon shell, which is amorphous and about 3-5 nm in thickness. The content of MoO2 nanocrystals in the nanocomposite is about 69.3 wt.%. The MoO2@C anode shows stable cyclability and retains a high reversible capacity of 443 mAh g(-1) after 50 cycles at a current density of 3 A g(-1), owing to the effective protection of carbon shell.
分类号	二类
类目[WOS]	Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
研究领域[WOS]	Chemistry ; Science & Technology - Other Topics ; Materials Science
关键词[WOS]	Carbon encapsulated MoO2 nanocrystals ; Core-shell ; Solid-state synthesis ; Lithium-ion battery ; Energy storage
收录类别	SCI
原文出处	http://dx.doi.org/10.1007/s11051-016-3651-3
语种	英语
WOS记录号	WOS:000392397000002
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/60091]
专题	力学研究所_非线性力学国家重点实验室
推荐引用方式 GB/T 7714	Liu BY,Shao YF,Zhang YL,et al. Highly efficient solid-state synthesis of carbon-encapsulated ultrafine MoO2 nanocrystals as high rate lithium-ion battery anode[J]. JOURNAL OF NANOPARTICLE RESEARCH,2016,18(12):375.
APA	Liu BY,邵颖峰,Zhang YL,Zhang FH,Zhong N,&Li WG.(2016).Highly efficient solid-state synthesis of carbon-encapsulated ultrafine MoO2 nanocrystals as high rate lithium-ion battery anode.JOURNAL OF NANOPARTICLE RESEARCH,18(12),375.
MLA	Liu BY,et al."Highly efficient solid-state synthesis of carbon-encapsulated ultrafine MoO2 nanocrystals as high rate lithium-ion battery anode".JOURNAL OF NANOPARTICLE RESEARCH 18.12(2016):375.