SciELO - Scientific Electronic Library Online

vol.54 issue330Development of ceramic tile bodies with kaolinitic clay and nepheline-syeniteStudy of oxidation in liquid phase sintered silicon carbide with addition of aluminum nitride and yttrium oxide author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links



Print version ISSN 0366-6913On-line version ISSN 1678-4553


FIGUEIRA, B. A. M.; ANGELICA, R. S.  and  SCHELLER, T.. Synthesis and characterization of manganese oxyhydroxide manganite (γ -MnOOH) type. Cerâmica [online]. 2008, vol.54, n.330, pp.193-197. ISSN 0366-6913.

Manganese oxyhydroxide (g - MnOOH) of the manganite type has been synthesized by a simple route with K-birnessite prepared by the sol-gel method. The hydrothermal treatment of the lamellar birnessite type structure facilitates the formation of tunnel structures where the size of the tunnels depends on the synthesis conditions (pH, temperature and time). The evidence of manganite formation under the synthesis conditions were made by X-ray diffraction, scanning electron microscopy, thermogravimetry, differential thermal analysis and infrared spectroscopy.

Keywords : manganite; birnessite; synthesis.

        · abstract in Portuguese     · text in Portuguese     · Portuguese ( pdf epdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License