Article ID Journal Published Year Pages File Type
67035 Journal of Molecular Catalysis A: Chemical 2010 5 Pages PDF
Abstract

A quantitative thermodynamic approach is considered with the aim to describe the size-dependent Langmuir–Hinshelwood mechanism and the two-step catalytic cycle. The general treatment takes into account surface energy excess due to an intrinsic increase in chemical potential with size decrease as well as the changes in chemical potential upon adsorption. Numerical simulations as well as qualitative analysis show that for catalytic reactions over nanoparticles not only the rates but also reaction orders can vary depending on the size of nanoclusters. Comparison with experimental data is given.

Graphical abstractA quantitative thermodynamic approach is considered with the aim to describe the size-dependent Langmuir–Hinshelwood mechanism and the two-step catalytic cycle. The general treatment takes into account surface energy excess due to an intrinsic increase in chemical potential with size decrease as well as the changes in chemical potential upon adsorption.Figure optionsDownload full-size imageDownload high-quality image (82 K)Download as PowerPoint slide

Related Topics
Physical Sciences and Engineering Chemical Engineering Catalysis
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