TY - JOUR
T1 - General synthesis of periodic macroporous solids by templated salt precipitation and chemical conversion
AU - Yan, H.
AU - Blanford, C. F.
AU - Holland, B. T.
AU - Smyrl, W. H.
AU - Stein, A.
PY - 2000
Y1 - 2000
N2 - This paper presents a general method to prepare three-dimensionally ordered macroporous (3DOM) metal oxides or carbonates via templating with polystyrene (PS) spheres. The method is based on templated precipitation of metal salts (acetates, oxalates, oxides) within a colloidal crystal of PS spheres and subsequent chemical conversion of the inorganic precursors. The compositional range of possible macroporous products includes oxides or carbonates of many metals in the periodic table (e.g., MgO, Cr2O3, Mn2O3, Fe2O3, Co3O4, NiO, ZnO, CaCO3), including compositions that are less accessible or more expensive by previous syntheses based on metal alkoxide precursors. Optimal synthesis conditions and structural features of selected materials are described, on the basis of XRD, TGA, SEM, TEM, nitrogen adsorption data, and chemical analysis.
AB - This paper presents a general method to prepare three-dimensionally ordered macroporous (3DOM) metal oxides or carbonates via templating with polystyrene (PS) spheres. The method is based on templated precipitation of metal salts (acetates, oxalates, oxides) within a colloidal crystal of PS spheres and subsequent chemical conversion of the inorganic precursors. The compositional range of possible macroporous products includes oxides or carbonates of many metals in the periodic table (e.g., MgO, Cr2O3, Mn2O3, Fe2O3, Co3O4, NiO, ZnO, CaCO3), including compositions that are less accessible or more expensive by previous syntheses based on metal alkoxide precursors. Optimal synthesis conditions and structural features of selected materials are described, on the basis of XRD, TGA, SEM, TEM, nitrogen adsorption data, and chemical analysis.
U2 - 10.1021/cm9907763
DO - 10.1021/cm9907763
M3 - Article
SN - 0897-4756
VL - 12
SP - 1134
EP - 1141
JO - Chemistry of Materials
JF - Chemistry of Materials
IS - 4
ER -