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

doi:10.1016/j.susc.2005.06.086

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 journal › Article › peer-review

10 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 language	English (US)
Pages (from-to)	L286-L291
Journal	Surface Science
Volume	591
Issue number	1-3
DOIs	https://doi.org/10.1016/j.susc.2005.06.086
State	Published - Oct 20 2005

Funding

This work was supported by the U.S. Department of Energy under Grant No. DE-FG02-84ER45125. It was performed at beam line X14 of the National Synchrotron Light Source (NSLS) and at Sector I of the Advanced Photon Source (APS). We thank Dr. Peter Lee for his valuable assistance at APS and Dr. Jianming Bai for his help at NSLS.

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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title = "Evidence of surface reconstruction during 'bioinspired' inorganic nucleation at an organic template",

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.",

keywords = "Biomineralization, Epitaxy, Nucleation, Soft-hard interface, Surface relaxation and reconstruction, X-ray diffraction",

author = "S. Kewalramani and G. Evmenenko and Yu, {C. J.} and K. Kim and J. Kmetko and P. Dutta",

note = "Funding Information: This work was supported by the U.S. Department of Energy under Grant No. DE-FG02-84ER45125. It was performed at beam line X14 of the National Synchrotron Light Source (NSLS) and at Sector I of the Advanced Photon Source (APS). We thank Dr. Peter Lee for his valuable assistance at APS and Dr. Jianming Bai for his help at NSLS.",

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doi = "10.1016/j.susc.2005.06.086",

language = "English (US)",

volume = "591",

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AU - Kewalramani, S.

AU - Evmenenko, G.

AU - Yu, C. J.

AU - Kim, K.

AU - Kmetko, J.

AU - Dutta, P.

N1 - Funding Information: This work was supported by the U.S. Department of Energy under Grant No. DE-FG02-84ER45125. It was performed at beam line X14 of the National Synchrotron Light Source (NSLS) and at Sector I of the Advanced Photon Source (APS). We thank Dr. Peter Lee for his valuable assistance at APS and Dr. Jianming Bai for his help at NSLS.

PY - 2005/10/20

Y1 - 2005/10/20

N2 - 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.

AB - 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.

KW - Biomineralization

KW - Epitaxy

KW - Nucleation

KW - Soft-hard interface

KW - Surface relaxation and reconstruction

KW - X-ray diffraction

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DO - 10.1016/j.susc.2005.06.086

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SP - L286-L291

JO - Surface Science

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IS - 1-3

ER -

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

Abstract

Funding

Keywords

ASJC Scopus subject areas

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