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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 680Design and Controllable Synthesis of...

Design and Controllable Synthesis of Starch-Derived Magnetic Carbon Spheres with Hierarchical Pore Structure

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Abstract:

Magnetic carbon spheres (MCSs) with hierarchical pore structure were designed and controllably synthesized using corn starch as carbon source and iron nitrate as metal source by a combined procedure of enzymolysis, pre-oxidation and catalytic carbonization. The results show that after enzymolysis, the porous starch precursor inherits the morphology of original starch with round shape and has a number of honeycomb-like pores of ca.1 μm on the outside surface. It has been found that the MCSs materials with hierarchical porous structure can be synthesized only from the pre-oxidized porous starch by the catalytic carbonization technique, evidenced that the pre-oxidation of carbon source is a dominating factor governing the formation of MCs with hierarchical pore structure. Compared with the porous starch, the pores on the surface of the MCSs shrink slightly and vary in a range of 0.3-0.6 μm.

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Periodical:

Advanced Materials Research (Volume 680)

Pages:

100-104

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.680.100

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Online since:

April 2013

Authors:

Chang Yu, Meng Chen, Xu Zhang, Jiang Bo Duan, Jieshan Qiu

Keywords:

Corn Starch, Enzymolysis, Magnetic Carbon with Hierarchical Pore, Porous Starch, Pre-Oxidation

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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