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Title: Transformation from hollow carbon octahedra to compressed octahedra and their use in lithium-ion batteries

Abstract

Graphical abstract: Schematic illustration of the transformation process from hollow carbon octahedra into deflated balloon-like compressed hollow carbon octahedra ▪. Highlights: ► We demonstrate the in situ template synthesis of hollow carbon octahedra. ► The shell thickness of hollow carbon octahedra is only 2.5 nm. ► Morphology transformation could be realized by extending of reaction time. ► The hollow structures show reversible capacity as 353 mAh g{sup −1} after 100 cycles. -- Abstract: Hollow carbon octahedra with an average size of 300 nm and a shell thickness of 2.5 nm were prepared by a reaction starting from ferrocene and Mg(CH{sub 3}COO){sub 2}·4H{sub 2}O at 700 °C for 10 h. They became compressed and turned into deflated balloon-like octahedra when the reaction time was increased to 16 h. It was proposed that the gas pressure generated during the reaction process induced the transformation from broken carbon hollow octahedra into deflated balloon-like compressed octahedra. X-ray powder diffraction and Raman spectroscopy indicate that the as-obtained carbon products possess a graphitic structure and high-resolution transmission electron microscopy images indicate that they have low crystallinity. Their application as an electrode shows reversible capacity of 353 mAh g{sup −1} after 100 cycles in the charge/discharge experimentsmore » of secondary lithium ion batteries.« less

Authors:
; ; ; ; ;  [1];  [1];  [2];  [3]
  1. Hefei National Laboratory for Physical Science at Microscale and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026 (China)
  2. (China)
  3. Jiangsu Highstar Battery Manufacturing CO., LTD (China)
Publication Date:
OSTI Identifier:
22215130
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 47; Journal Issue: 6; Other Information: Copyright (c) 2012 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY; ELECTRIC BATTERIES; FERROCENE; GRAPHITE; LITHIUM IONS; NANOSTRUCTURES; RAMAN SPECTROSCOPY; TRANSFORMATIONS; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION

Citation Formats

Mei, Tao, Li, Na, Li, Qianwen, Xing, Zheng, Tang, Kaibin, Zhu, Yongchun, Qian, Yitai, E-mail: ytqian@ustc.edu.cn, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, and Shen, Xiaoyan. Transformation from hollow carbon octahedra to compressed octahedra and their use in lithium-ion batteries. United States: N. p., 2012. Web. doi:10.1016/J.MATERRESBULL.2012.03.011.
Mei, Tao, Li, Na, Li, Qianwen, Xing, Zheng, Tang, Kaibin, Zhu, Yongchun, Qian, Yitai, E-mail: ytqian@ustc.edu.cn, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, & Shen, Xiaoyan. Transformation from hollow carbon octahedra to compressed octahedra and their use in lithium-ion batteries. United States. doi:10.1016/J.MATERRESBULL.2012.03.011.
Mei, Tao, Li, Na, Li, Qianwen, Xing, Zheng, Tang, Kaibin, Zhu, Yongchun, Qian, Yitai, E-mail: ytqian@ustc.edu.cn, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, and Shen, Xiaoyan. Fri . "Transformation from hollow carbon octahedra to compressed octahedra and their use in lithium-ion batteries". United States. doi:10.1016/J.MATERRESBULL.2012.03.011.
@article{osti_22215130,
title = {Transformation from hollow carbon octahedra to compressed octahedra and their use in lithium-ion batteries},
author = {Mei, Tao and Li, Na and Li, Qianwen and Xing, Zheng and Tang, Kaibin and Zhu, Yongchun and Qian, Yitai, E-mail: ytqian@ustc.edu.cn and School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100 and Shen, Xiaoyan},
abstractNote = {Graphical abstract: Schematic illustration of the transformation process from hollow carbon octahedra into deflated balloon-like compressed hollow carbon octahedra ▪. Highlights: ► We demonstrate the in situ template synthesis of hollow carbon octahedra. ► The shell thickness of hollow carbon octahedra is only 2.5 nm. ► Morphology transformation could be realized by extending of reaction time. ► The hollow structures show reversible capacity as 353 mAh g{sup −1} after 100 cycles. -- Abstract: Hollow carbon octahedra with an average size of 300 nm and a shell thickness of 2.5 nm were prepared by a reaction starting from ferrocene and Mg(CH{sub 3}COO){sub 2}·4H{sub 2}O at 700 °C for 10 h. They became compressed and turned into deflated balloon-like octahedra when the reaction time was increased to 16 h. It was proposed that the gas pressure generated during the reaction process induced the transformation from broken carbon hollow octahedra into deflated balloon-like compressed octahedra. X-ray powder diffraction and Raman spectroscopy indicate that the as-obtained carbon products possess a graphitic structure and high-resolution transmission electron microscopy images indicate that they have low crystallinity. Their application as an electrode shows reversible capacity of 353 mAh g{sup −1} after 100 cycles in the charge/discharge experiments of secondary lithium ion batteries.},
doi = {10.1016/J.MATERRESBULL.2012.03.011},
journal = {Materials Research Bulletin},
issn = {0025-5408},
number = 6,
volume = 47,
place = {United States},
year = {2012},
month = {6}
}