TY - JOUR
T1 - Synthesis of macroporous minerals with highly ordered three-dimensional arrays of spheroidal voids
AU - Holland, Brian T.
AU - Blanford, Christopher F.
AU - Stein, Andreas
PY - 1998/7/24
Y1 - 1998/7/24
N2 - Titania, zirconia, and alumina samples with periodic three-dimensional arrays of macropores were synthesized from the corresponding metal alkoxides, using latex spheres as templates. In a fast, single-step reaction, the monomeric alkoxide precursors permeate the array of bulk polystyrene spheres and condense in air at room temperature. Close packed, open-pore structures with 320- to 360-nanometer voids are obtained after calcination of the organic component a 575°C. The examples presented demonstrate the compositional diversity possible with this technique. The resulting highly structured ceramics could have applications in areas ranging from quantum electronics to photocatalysis to battery materials.
AB - Titania, zirconia, and alumina samples with periodic three-dimensional arrays of macropores were synthesized from the corresponding metal alkoxides, using latex spheres as templates. In a fast, single-step reaction, the monomeric alkoxide precursors permeate the array of bulk polystyrene spheres and condense in air at room temperature. Close packed, open-pore structures with 320- to 360-nanometer voids are obtained after calcination of the organic component a 575°C. The examples presented demonstrate the compositional diversity possible with this technique. The resulting highly structured ceramics could have applications in areas ranging from quantum electronics to photocatalysis to battery materials.
UR - https://www.scopus.com/pages/publications/0032563228
U2 - 10.1126/science.281.5376.538
DO - 10.1126/science.281.5376.538
M3 - Article
SN - 0036-8075
VL - 281
SP - 538
EP - 540
JO - Science
JF - Science
IS - 5376
ER -