Abstract
SiO 2–TiO 2 pillared layered manganese oxide nanohybrid was successfully synthesized by preliminarily expanding the interlayer of H-type layered manganese oxide using dodecylamine, followed by reacting it with a mixture solution of titanium isopropoxide and tetraethylorthosilicate. The basal spacing and the pillared agent content of the obtained materials connected with the length of intercalated n-alkylamine, incorporated Si/Ti molar ratios and the solvothermal treatment temperature. The structural evolution of SiO 2–TiO 2 pillared layered manganese oxide nanohybrid was characterized by XRD, DSC-TGA, SEM, IR, N 2 adsorption–desorption and element analyses. TiO 2 particles exhibited a stronger affinity for the negatively charged manganese layers, and the TiO 2 particles incorporated were independently intercalated without any distinct chemical bonding with the co-intercalated SiO 2 particles. SiO 2–TiO 2 pillared layered manganese oxide nanohybrid had a BET surface area of 98 m 2/g with a gallery height of about 1.43 nm between layers. The obtained SiO 2–TiO 2 co-pillared layered manganese oxide nanohybrid is expected as a selective catalyst, or an improved battery material.
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