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Synthesis of todorokite by refluxing process and its primary characteristics

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Abstract

Single phase and well-crystallined todorokite were synthesized by heating and refluxing process from birnessite as a precursor. The average chemical composition of the synthesized todorokites by refluxing for 8 h and for 24 h was Mg0.19MnO2.11(H2O)1.15 and in0.17-MnO2.10(H2O)0.88, respectively. The crystallinity of the todorokite increased and no other phase was produced with increasing refluxing period. The synthesized todorokites have the same morphologies and the similar structural characteristics with the natural todorokites and hydro-thermally synthesized samples. The chemical compositions of the synthetic tordorokites by refluxing process are close to those of todorokites synthesized by hydrothermal process, except a higher average oxidation state of Mn for the former.

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Feng, X., Liu, F., Tan, W. et al. Synthesis of todorokite by refluxing process and its primary characteristics. Sci. China Ser. D-Earth Sci. 47, 760–768 (2004). https://doi.org/10.1360/03yd0511

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  • DOI: https://doi.org/10.1360/03yd0511

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