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Updated: Aug 7, 2026
09:35
Applying Dynamic Strain on Thin Oxide Films Immobilized on a Pseudoelastic Nickel-Titanium Alloy
Published on: July 28, 2020
Lattice strain effects on CO oxidation on Pt(111)
Lars Grabow1, Ye Xu, Manos Mavrikakis
1Department of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, WI 53706, USA.
Physical Chemistry Chemical Physics : PCCP
|July 21, 2006
Summary
Surface strain significantly impacts platinum
Area of Science:
- Materials Science
- Catalysis
- Surface Chemistry
Background:
- Platinum is a key catalyst for CO oxidation.
- Understanding factors influencing its activity is crucial for catalyst design.
Purpose of the Study:
- To investigate the role of surface strain in platinum's catalytic activity for CO oxidation.
- To identify how strain affects the rate-limiting step of the reaction.
Main Methods:
- Computational modeling of platinum surfaces with varying strain.
- Analysis of reaction pathways and transition states for CO oxidation.
Main Results:
- Surface strain directly influences the activation energy of CO oxidation on platinum.
- Specific strain levels alter the rate-limiting step from CO adsorption to O-O bond formation.
Conclusions:
- Surface strain is a critical parameter for tuning platinum's catalytic performance in CO oxidation.
- Controlling surface strain offers a pathway to optimize platinum-based catalysts.
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