Adsorption of polyvinylpyrrolidone on Ag surfaces: Insight into a structure-directing agent

W. A. Al-Saidi; Haijun Feng; Kristen A. Fichthorn

doi:10.1021/nl2041113

Adsorption of polyvinylpyrrolidone on Ag surfaces: Insight into a structure-directing agent

W. A. Al-Saidi, Haijun Feng, Kristen A. Fichthorn

Research output: Contribution to journal › Article › peer-review

182 Scopus citations

Abstract

We use density functional theory to resolve the role of polyvinylpyrrolidone (PVP) in the shape-selective synthesis of Ag nanostructures. At the segment level, PVP binds more strongly to Ag(100) than Ag(111) because of a surface-sensitive balance between direct binding and van der Waals attraction. At the chain level, correlated segment binding leads to a strong preference for PVP bind to Ag(100). Our study underscores differences between small-molecule and polymeric structure-directing agents.

Original language	English (US)
Pages (from-to)	997-1001
Number of pages	5
Journal	Nano letters
Volume	12
Issue number	2
DOIs	https://doi.org/10.1021/nl2041113
State	Published - Feb 8 2012

All Science Journal Classification (ASJC) codes

Bioengineering
General Chemistry
General Materials Science
Condensed Matter Physics
Mechanical Engineering

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10.1021/nl2041113

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abstract = "We use density functional theory to resolve the role of polyvinylpyrrolidone (PVP) in the shape-selective synthesis of Ag nanostructures. At the segment level, PVP binds more strongly to Ag(100) than Ag(111) because of a surface-sensitive balance between direct binding and van der Waals attraction. At the chain level, correlated segment binding leads to a strong preference for PVP bind to Ag(100). Our study underscores differences between small-molecule and polymeric structure-directing agents.",

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AU - Feng, Haijun

AU - Fichthorn, Kristen A.

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AB - We use density functional theory to resolve the role of polyvinylpyrrolidone (PVP) in the shape-selective synthesis of Ag nanostructures. At the segment level, PVP binds more strongly to Ag(100) than Ag(111) because of a surface-sensitive balance between direct binding and van der Waals attraction. At the chain level, correlated segment binding leads to a strong preference for PVP bind to Ag(100). Our study underscores differences between small-molecule and polymeric structure-directing agents.

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JO - Nano letters

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Adsorption of polyvinylpyrrolidone on Ag surfaces: Insight into a structure-directing agent

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