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Grzybowski, Bartosz A.
School of Natural Science
Research Interests
  • Nano science

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Heterogeneous Catalysis "On Demand": Mechanically Controlled Catalytic Activity of a Metal Surface

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Title
Heterogeneous Catalysis "On Demand": Mechanically Controlled Catalytic Activity of a Metal Surface
Author
Mazur, TomaszLach, SlawomirGrzybowski, Bartosz A.
Keywords
heterogeneous catalysis “on demand”; catalytic domains;  mechanical deformation;  self-assembled monolayer
Issue Date
201712
Publisher
AMER CHEMICAL SOC
Citation
ACS APPLIED MATERIALS & INTERFACES, v.9, no.51, pp.44264 - 44269
Abstract
A metal surface passivated with a tightly packed self assembled monolayer (SAM) can be made catalytically active upon the metal's mechanical deformation. This deformation renders the SAM sparser and exposes additional catalytic sites on the metal's surface. If the deformation is elastic, return of the metal to the original shape "heals" the SAM and nearly extinguishes the catalytic activity. Kelvin probe force microscopy and theoretical considerations both indicate that the catalytic domains "opening up" in the deformed SAM are of nanoscopic dimensions.
URI
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DOI
http://dx.doi.org/10.1021/acsami.7b15253
ISSN
1944-8244
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