General synthesis of periodic macroporous solids by templated salt precipitation and chemical conversion

H. Yan; C. F. Blanford; B. T. Holland; W. H. Smyrl; A. Stein

doi:10.1021/cm9907763

General synthesis of periodic macroporous solids by templated salt precipitation and chemical conversion

H. Yan, C. F. Blanford, B. T. Holland, W. H. Smyrl, A. Stein

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345 Scopus citations

Abstract

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.

Original language	English (US)
Pages (from-to)	1134-1141
Number of pages	8
Journal	Chemistry of Materials
Volume	12
Issue number	4
DOIs	https://doi.org/10.1021/cm9907763
State	Published - Oct 17 2000

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title = "General synthesis of periodic macroporous solids by templated salt precipitation and chemical conversion",

abstract = "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.",

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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 - 2000/10/17

Y1 - 2000/10/17

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.

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