Synthesis of Nanocrystalline γ-MnO2 by Hydrothermal Method and Its Characterization

Abstract

Abstract: γ-MnO₂ nanocrystalline was synthesized by hydrothermal method. XRD, TG,DTAand TEa were used to characterize the MnO₂, nanocrystalline and its precursor. Theresults indicate that the powder obtained form crystallizing at 400℃ was γ-MnO₂ with size inthe range of 5-10nm. When the powders were crystallized at 500℃, they agglomerated tobe spherical particles with a size about 50 nm. The thermal sensitivity of the MnO₂nanocrystalline was also studied.

Key words: Nanocrystalline, γ-MnO₂, Hydrothermal method, Thermal sensitive material

CLC Number:

O614.7

TrendMD:

LI Ya-Dong, LI Cheng-Wei, LI Long-Quan, QIAN Yi-Tai. Synthesis of Nanocrystalline γ-MnO₂ by Hydrothermal Method and Its Characterization[J]. Chem. J. Chinese Universities, 1997, 18(9): 1436.

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Synthesis of Nanocrystalline γ-MnO₂ by Hydrothermal Method and Its Characterization

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