Cargando…
Heterogeneous Nucleation onto Monoatomic Ions: Support for the Kelvin‐Thomson Theory
In this study, the process of heterogeneous nucleation is investigated by coupling a high‐resolution differential mobility analyser (DMA) to an expansion‐type condensation particle counter, the size‐analyzing nuclei counter (SANC). More specifically, we measured the activation probabilities of monoa...
Autores principales: | , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2018
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6391949/ https://www.ncbi.nlm.nih.gov/pubmed/30238689 http://dx.doi.org/10.1002/cphc.201800698 |
_version_ | 1783398397313548288 |
---|---|
author | Tauber, Christian Chen, Xiaoshuang Wagner, Paul E. Winkler, Paul M. Hogan, Christopher J. Maißer, Anne |
author_facet | Tauber, Christian Chen, Xiaoshuang Wagner, Paul E. Winkler, Paul M. Hogan, Christopher J. Maißer, Anne |
author_sort | Tauber, Christian |
collection | PubMed |
description | In this study, the process of heterogeneous nucleation is investigated by coupling a high‐resolution differential mobility analyser (DMA) to an expansion‐type condensation particle counter, the size‐analyzing nuclei counter (SANC). More specifically, we measured the activation probabilities of monoatomic ions of both polarities by using n‐butanol as condensing liquid. All seed ions were activated to grow into macroscopic sizes at saturation ratios well below the onset of homogeneous nucleation, showing for the first time that the SANC is capable of detecting sub‐nanometer sized, atomic seed ions. The measured onset saturation ratios for each ion were compared to the Kelvin‐Thomson (KT) theory. Despite the fact that certain dependencies of activation behaviour on seed ion properties cannot be predicted by the KT theory, it was found that with a simple adjustment of the n‐butanol molecular volume (9–15 % lower compared to bulk properties) good agreement with experimental results is achievable. The corresponding density increase may result from the dipole‐charge interaction. This study thus offers support for the application of the KT model for heterogeneous, ion‐induced nucleation studies at the sub‐nanometer level. |
format | Online Article Text |
id | pubmed-6391949 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-63919492019-03-07 Heterogeneous Nucleation onto Monoatomic Ions: Support for the Kelvin‐Thomson Theory Tauber, Christian Chen, Xiaoshuang Wagner, Paul E. Winkler, Paul M. Hogan, Christopher J. Maißer, Anne Chemphyschem Articles In this study, the process of heterogeneous nucleation is investigated by coupling a high‐resolution differential mobility analyser (DMA) to an expansion‐type condensation particle counter, the size‐analyzing nuclei counter (SANC). More specifically, we measured the activation probabilities of monoatomic ions of both polarities by using n‐butanol as condensing liquid. All seed ions were activated to grow into macroscopic sizes at saturation ratios well below the onset of homogeneous nucleation, showing for the first time that the SANC is capable of detecting sub‐nanometer sized, atomic seed ions. The measured onset saturation ratios for each ion were compared to the Kelvin‐Thomson (KT) theory. Despite the fact that certain dependencies of activation behaviour on seed ion properties cannot be predicted by the KT theory, it was found that with a simple adjustment of the n‐butanol molecular volume (9–15 % lower compared to bulk properties) good agreement with experimental results is achievable. The corresponding density increase may result from the dipole‐charge interaction. This study thus offers support for the application of the KT model for heterogeneous, ion‐induced nucleation studies at the sub‐nanometer level. John Wiley and Sons Inc. 2018-10-12 2018-11-19 /pmc/articles/PMC6391949/ /pubmed/30238689 http://dx.doi.org/10.1002/cphc.201800698 Text en © 2018 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc-nd/4.0/ License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made. |
spellingShingle | Articles Tauber, Christian Chen, Xiaoshuang Wagner, Paul E. Winkler, Paul M. Hogan, Christopher J. Maißer, Anne Heterogeneous Nucleation onto Monoatomic Ions: Support for the Kelvin‐Thomson Theory |
title | Heterogeneous Nucleation onto Monoatomic Ions: Support for the Kelvin‐Thomson Theory |
title_full | Heterogeneous Nucleation onto Monoatomic Ions: Support for the Kelvin‐Thomson Theory |
title_fullStr | Heterogeneous Nucleation onto Monoatomic Ions: Support for the Kelvin‐Thomson Theory |
title_full_unstemmed | Heterogeneous Nucleation onto Monoatomic Ions: Support for the Kelvin‐Thomson Theory |
title_short | Heterogeneous Nucleation onto Monoatomic Ions: Support for the Kelvin‐Thomson Theory |
title_sort | heterogeneous nucleation onto monoatomic ions: support for the kelvin‐thomson theory |
topic | Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6391949/ https://www.ncbi.nlm.nih.gov/pubmed/30238689 http://dx.doi.org/10.1002/cphc.201800698 |
work_keys_str_mv | AT tauberchristian heterogeneousnucleationontomonoatomicionssupportforthekelvinthomsontheory AT chenxiaoshuang heterogeneousnucleationontomonoatomicionssupportforthekelvinthomsontheory AT wagnerpaule heterogeneousnucleationontomonoatomicionssupportforthekelvinthomsontheory AT winklerpaulm heterogeneousnucleationontomonoatomicionssupportforthekelvinthomsontheory AT hoganchristopherj heterogeneousnucleationontomonoatomicionssupportforthekelvinthomsontheory AT maißeranne heterogeneousnucleationontomonoatomicionssupportforthekelvinthomsontheory |