Evidence of surface reconstruction during 'bioinspired' inorganic nucleation at an organic template

S. Kewalramani*, G. Evmenenko, C. J. Yu, K. Kim, J. Kmetko, P. Dutta

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

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.

Original languageEnglish (US)
Pages (from-to)L286-L291
JournalSurface Science
Volume591
Issue number1-3
DOIs
StatePublished - Oct 20 2005

Keywords

  • Biomineralization
  • Epitaxy
  • Nucleation
  • Soft-hard interface
  • Surface relaxation and reconstruction
  • X-ray diffraction

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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