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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 669The pH Influence on the Preparation of Hollow...

The pH Influence on the Preparation of Hollow Fe₂O₃ Spheres by Hydrothermal Method

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Abstract:

In this paper Fe2O3 precursor coating on the surface of carbon balls was prepared by hydrothermal method using Fe(NO3)3·9H20 and glucose as the raw materials. After calcination Fe2O3 hollow sphere could be achieved. The influence of pH value on the preparation of hollow Fe2O3 spheres was studied using XRD and SEM respectively. The results show that the pH value has no effect on the formation of Fe2O3 phase, but has a giant influence on the morphology of the hollow spheres. The Fe2O3 hollow spheres were achieved when the pH value was between 3 and 7. The particles with sheet and block structure form when pH7. The mechanism was studied, When 3

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Periodical:

Advanced Materials Research (Volume 669)

Pages:

119-123

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.669.119

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Online since:

March 2013

Authors:

Liang Qiao, Jie Chen, Li Qiang Jiang, Jing Wu Zheng

Keywords:

Fe₂O₃, Hollow Sphere, Hydrothermal Method, pH Value

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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