Evidence of Surface Reconstruction During 'Bioinspired' Inorganic Nucleation at an Organic Template
X-ray diffraction studies performed during the nucleation of hydrocerussite (PbCO3 {center_dot} Pb(OH){sub 2}) from a supersaturated aqueous solution, at a floating fatty acid monolayer template, reveal ({radical}7 x {radical}7)-R19.1 degree 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.
- Research Organization:
- Brookhaven National Laboratory (BNL) National Synchrotron Light Source
- Sponsoring Organization:
- Doe - Office Of Science
- DOE Contract Number:
- AC02-98CH10886
- OSTI ID:
- 913784
- Report Number(s):
- BNL--78352-2007-JA
- Journal Information:
- Surf. Sci. Lett., Journal Name: Surf. Sci. Lett. Vol. 591
- Country of Publication:
- United States
- Language:
- English
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