An approach to hierarchically structured porous zirconia aggregates

David H. Reeder, Andrew M. Clausen, Michael J. Annen, Peter W. Carr, Michael C. Flickinger, Alon V. McCormick

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


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 o- and macropore networks as well as the mechanical integrity of the structure can be controlled by varying sintering conditions.

Original languageEnglish (US)
Pages (from-to)328-330
Number of pages3
JournalJournal of Colloid And Interface Science
Issue number1
StatePublished - Dec 1 1996

Bibliographical note

Funding Information:
This work was supported by Grants GM 45988 from the National Institutes of Health and CHE 917029 from the National Science Foundation. D.H.R. gratefully recognizes support through a Biotechnology Training Fellowship through the National Institutes of General Medical Sciences (IT32-GM08347). Thanks also go to the Surface Analysis Center at the University of Minnesota for instrumentation.


  • catalysis
  • colloid aggregation
  • liquid chromatography
  • zirconia


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