Abstract
In this communication, we propose a template approach toward synthesis of carbon hollow spheres by direct carbonization of highly crosslinked sulfonated polystyrene gel hollow spheres (sPS). The sulfonic acid group can facilitate carbonization. Moreover, the acid group can also induce a favorable growth of other materials within the sPS gel-forming carbon-based composite shell such as bi-continuous C/SiO2 and their derivative ceramic SiC. Release of small molecules during polymers decomposition results porous shell.
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Acknowledgments
This work was supported by National Science Foundation of China (50573083, 50325313, 90606031 and 50521302), foundations from Chinese Academy of Sciences, and China Ministry of Science and Technology (2004-01-09, KJCX2-SW-H07 and 2003CB615600).
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Sample preparation and characterization, Raman spectrum, TGA curve, Nitrogen adsorption–desorption isotherms, and Fourier transform infrared spectra of sample.
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Ding, S., Zhang, C., Qu, X. et al. Porous carbon and carbon composite hollow spheres. Colloid Polym Sci 286, 1093–1096 (2008). https://doi.org/10.1007/s00396-008-1865-3
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DOI: https://doi.org/10.1007/s00396-008-1865-3