Author： Hong X.
Publisher： Springer Publishing Company
ISSN： 1064-7562
Source： Journal of Materials Synthesis and Processing, Vol.10, Iss.6, 2002-11, pp. : 297-302
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Abstract
Mesoporous manganese oxide (MPMO) K0.216MnO2 
1.26H2O was synthesized by reduction of KMnO4 with maleic acid. Its composition and structure were analyzed and characterized by inductive coupled plasma atomic emission spectrometry (ICP-AES), titration, X-ray powder diffractometry (XRD), thermogravimetry (TG)-differential thermoanalysis (DTA). The morphology and pore structure of the MPMO material were accomplished by means of high-resolution transmission electron microscopy (HRTEM) and N2 sorptometry and transmission electron microscopy (TEM). The results show that MPMO is a pseudocrystalline material with complex network pore structure; its BET surface area is 261.6 m2/g and pore diameter distribution is approximately in the range of 210 nm. The MPMO material turns into 
-MnO2 when the calcinating temperature rises to 400°C.
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