Article ID Journal Published Year Pages File Type
9594581 Surface Science 2005 6 Pages PDF
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 (√7 × √7)-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
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