Document Detail


Surface reconstruction and the difference in surface acidity between gamma- and eta-alumina.
MedLine Citation:
PMID:  11273597     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
The surfaces of the gamma and eta forms of alumina are well known to differ significantly in Lewis acidity. Surface reconstructions observed on gamma- and eta-alumina are also qualitatively different, despite the close similarity of the bulk structures. Here we demonstrate through first-principles calculations that subtle differences in the bulk point defect distribution between these two forms of alumina give rise to the major differences in the mode of surface reconstruction and correlate with the different levels of Lewis acidity.
Authors:
K Sohlberg; S T Pantelides; S J Pennycook
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of the American Chemical Society     Volume:  123     ISSN:  0002-7863     ISO Abbreviation:  J. Am. Chem. Soc.     Publication Date:  2001 Jan 
Date Detail:
Created Date:  2001-05-31     Completed Date:  2001-09-06     Revised Date:  2003-10-31    
Medline Journal Info:
Nlm Unique ID:  7503056     Medline TA:  J Am Chem Soc     Country:  United States    
Other Details:
Languages:  eng     Pagination:  26-9     Citation Subset:  -    
Affiliation:
Department of Chemistry, Drexel University, Philadelphia, Pennsylvania 19104, USA.
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