title: An Approach to Hierarchically Structured Porous Zirconia Aggregates
abstract: Presented here is a simple, inexpensive approach to aggregating colloids into hierarchically structured spherical particles. Successive aggregation steps are used to assemble a particle that is self-similar on two size scales and is permeated by an ordered pore network with a bidisperse size distribution. The structure of the micro- and macropore networks as well as the mechanical integrity of the structure can be controlled by varying sintering conditions.
authors.affiliation: Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota, 55455
authors.initials: DH
authors.lastname: Reeder
authors.initials: AM
authors.lastname: Clausen
authors.initials: MJ
authors.lastname: Annen
authors.initials: PW
authors.lastname: Carr
authors.initials: MC
authors.lastname: Flickinger
authors.initials: AV
authors.lastname: Mccormick