Journal article
THE BULK AND SURFACE STRUCTURE OF γ-ALUMINA
Chemical engineering communications, v 181(1)
01 Sep 2000
Abstract
Despite its widespread use, the composition and structure of γ-alumina have been the subject of controversy for decades. In this article we review the historical attempts to resolve two principal questions that have each been extensively debated, but in independent communities: (1) What is the distribution of vacancies over the two cation sublattices in the nominal spinel structure, and (2) what is the hydrogen content of γ-alumina, if any? We then review how recent investigations have shown that these two questions are, in fact, related, and have a single resolution. The experimental study of γ-alumina surfaces has long been dominated by IR spectroscopy of the hydroxylated surfaces, and
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AI NMR. Both techniques have produced perplexing results. Here we review the development of these surface studies and parallel computational studies. Finally, we review recent computational results that explain the puzzling experimental findings.
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Details
- Title
- THE BULK AND SURFACE STRUCTURE OF γ-ALUMINA
- Creators
- KARL Sohlberg - Oak Ridge National LaboratorySTEPHEN J. Pennycook - Oak Ridge National LaboratorySOKRATES T. Pantelides - Oak Ridge National Laboratory
- Publication Details
- Chemical engineering communications, v 181(1)
- Publisher
- Taylor & Francis Group
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Chemistry
- Web of Science ID
- WOS:000089224800007
- Scopus ID
- 2-s2.0-0034261186
- Other Identifier
- 991019222767504721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Engineering, Chemical