Understanding nano-impacts: impact times and near-wall hindered diffusion
© the Partner Organisations 2014. We report the residence time of freely-diffusing, catalytically-active nanoparticles within a electron tunnelling distance of a surface. The role of near-wall hindered diffusion is paramount and leads to the new concept of "hydrodynamic adsorption". We giv...
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| 格式: | Journal article |
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2014
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| 總結: | © the Partner Organisations 2014. We report the residence time of freely-diffusing, catalytically-active nanoparticles within a electron tunnelling distance of a surface. The role of near-wall hindered diffusion is paramount and leads to the new concept of "hydrodynamic adsorption". We give a comprehensive statistical analysis of the average impact times and derive expressions for a number values, crucial for the analysis of experimental data. Random walk simulations confirm the distribution of impact times with broad implications for nanochemistry. |
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