Hierarchical nanostructured core-shell Sn@C nanoparticles embedded in graphene nanosheets: spectroscopic view and their application in lithium ion batteries

被引：111

作者：

Wang, Dongniu ^{[1
,2
]}

Li, Xifei ^{[1
]}

Yang, Jinli ^{[1
]}

Wang, Jiajun ^{[1
]}

Geng, Dongsheng ^{[1
]}

Li, Ruying ^{[1
]}

Cai, Mei ^{[3
]}

Sham, Tsun-Kong ^{[2
]}

Sun, Xueliang ^{[1
]}

机构：

[1] Univ Western Ontario, Dept Mech & Mat Engn, London, ON N6A 5B7, Canada

[2] Univ Western Ontario, Dept Chem, London, ON N6A 5B7, Canada

[3] Gen Motors R&D Ctr, Warren, MI 48090 USA

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2013年 / 15卷 / 10期

基金：

加拿大创新基金会; 加拿大自然科学与工程研究理事会;

关键词：

X-RAY-ABSORPTION; ANODE MATERIAL; REVERSIBLE CAPACITY; STORAGE; CARBON; PERFORMANCE; COMPOSITE; STABILITY; OXIDE; ELECTRODES;

D O I：

10.1039/c3cp44172e

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Hierarchical carbon encapsulated tin (Sn@C) embedded graphene nanosheet (GN) composites (Sn@C-GNs) have been successfully fabricated via a simple and scalable one-step chemical vapor deposition (CVD) procedure. The GN supported Sn@C core-shell structures consist of a crystalline tin core, which is thoroughly covered by a carbon shell and more interestingly, extra voids are present between the carbon shell and the tin core. Synchrotron spectroscopy confirms that the metallic tin core is free of oxidation and the existence of charge redistribution transfer from tin to the carbonaceous materials of the shell, facilitating their intimate contact by chemical bonding and resultant lattice variation. The hybrid electrodes of this material exhibit a highly stable and reversible capacity together with an excellent rate capability, which benefits from the improved electrochemical properties of tin provided by the protective carbon matrix, voids and the flexible GN matrices.

引用

页码：3535 / 3542

页数：8

共 37 条

[1] Nanostructured materials for advanced energy conversion and storage devices [J].

Aricò, AS ;

Bruce, P ;

Scrosati, B ;

Tarascon, JM ;

Van Schalkwijk, W .

NATURE MATERIALS, 2005, 4 (05) :366-377

[2] A class of non-precious metal composite catalysts for fuel cells [J].

Bashyam, Rajesh ;

Zelenay, Piotr .

NATURE, 2006, 443 (7107) :63-66

[3] Electronic confinement and coherence in patterned epitaxial graphene [J].

Berger, Claire ;

Song, Zhimin ;

Li, Xuebin ;

Wu, Xiaosong ;

Brown, Nate ;

Naud, Cecile ;

Mayou, Didier ;

Li, Tianbo ;

Hass, Joanna ;

Marchenkov, Atexei N. ;

Conrad, Edward H. ;

First, Phillip N. ;

de Heer, Wait A. .

SCIENCE, 2006, 312 (5777) :1191-1196

[4] SnO2 Nanoparticles with Controlled Carbon Nanocoating as High-Capacity Anode Materials for Lithium-Ion Batteries [J].

Chen, Jun Song ;

Cheah, Yan Ling ;

Chen, Yuan Ting ;

Jayaprakash, N. ;

Madhavi, Srinivasan ;

Yang, Yan Hui ;

Lou, Xiong Wen .

JOURNAL OF PHYSICAL CHEMISTRY C, 2009, 113 (47) :20504-20508

[5] Graphene supported Sn-Sb@carbon core-shell particles as a superior anode for lithium ion batteries [J].

Chen, Shuangqiang ;

Chen, Peng ;

Wu, Minghong ;

Pan, Dengyu ;

Wang, Yong .

ELECTROCHEMISTRY COMMUNICATIONS, 2010, 12 (10) :1302-1306

[6] Key factors controlling the reversibility of the reaction of lithium with SnO2 and Sn2BPO6 glass [J].

Courtney, IA ;

Dahn, JR .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1997, 144 (09) :2943-2948

[7] Reversible Storage of Lithium in a Rambutan-Like Tin-Carbon Electrode [J].

Deng, Da ;

Lee, Jim Yang .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2009, 48 (09) :1660-1663

[8] Nanostructured Sn-C composite as an advanced anode material in high-performance lithium-ion batteries [J].

Derrien, Gaelle ;

Hassoun, Jusef ;

Panero, Stefania ;

Scrosati, Bruno .

ADVANCED MATERIALS, 2007, 19 (17) :2336-+

[9] SnO2 nanosheets grown on graphene sheets with enhanced lithium storage properties [J].

Ding, Shujiang ;

Luan, Deyan ;

Boey, Freddy Yin Chiang ;

Chen, Jun Song ;

Lou, Xiong Wen .

CHEMICAL COMMUNICATIONS, 2011, 47 (25) :7155-7157

[10] A nanostructured Sn-C composite lithium battery electrode with unique stability and high electrochemical performance [J].

Hassoun, Jusef ;

Derrien, Gaelle ;

Panero, Stefania ;

Scrosati, Bruno .

ADVANCED MATERIALS, 2008, 20 (16) :3169-3175

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