Journal
CARBON
Volume 50, Issue 5, Pages 1871-1878Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2011.12.037
Keywords
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Funding
- State Key Laboratory of Crystal Material [KF1105]
- National Natural Science Foundation of China [50972076, 50872072]
- Shandong Provincial Natural Science Foundation, China [Y2008F26, Y2008F40]
- Science and Technology Development of Shandong Province [2009GG10003001]
- Graduate Independent Innovation Foundation of Shandong University, GIIFSDU [31370071613052]
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Hollow carbon nanospheres (HCNSs) were prepared on large scale by the reaction of AlCl3 center dot 6H(2)O and CaC2 in the temperature range of 250-500 degrees C. Characterization of the products by X-ray diffraction, Raman spectroscopy and transmission electron microscopy indicates that they have a uniform size of about 30 nm and a high degree of graphitization. Based on a series of comparative experiments and the systematic characterization of the products, both the water of crystallization and AlCl3 in AlCl3 center dot 6H(2)O play crucial roles in preparing the HCNSs. It was found that AlCl3 exhibits a strong graphitization behavior on solid carbon nanospheres even at low temperatures, and the graphitization contributes to their evolution to HCNSs. (C) 2011 Elsevier Ltd. All rights reserved.
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