Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9594581 | Surface Science | 2005 | 6 Pages |
Abstract
X-ray diffraction studies performed during the nucleation of hydrocerussite (PbCO3 · Pb(OH)2) from a supersaturated aqueous solution, at a floating fatty acid monolayer template, reveal (â7 Ã â7)-R19.1° reconstruction at the (0 0 1) surface of hydrocerussite. Reordering of surface atoms into epitaxial superstructures is thought to require extremely clean surfaces (cleaned electrochemically or under UHV). At this organic-inorganic interface, the organic monolayer relaxes to form an epitaxial match with the reconstructed lattice just below it. We speculate that this lattice match, along with the ion-specific interactions of the monolayer, provide the clean nucleation environment.
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
S. Kewalramani, G. Evmenenko, C.-J. Yu, K. Kim, J. Kmetko, P. Dutta,