Cargando…

Direct measuring of single–heterogeneous bubble nucleation mediated by surface topology

Heterogeneous bubble nucleation is one of the most fundamental interfacial processes ranging from nature to technology. There is excellent evidence that surface topology is important in directing heterogeneous nucleation; however, deep understanding of the energetics by which nanoscale architectures...

Descripción completa

Detalles Bibliográficos
Autores principales: Deng, Xiaoli, Shan, Yun, Meng, Xiaohui, Yu, Zhaoyang, Lu, Xiaoxi, Ma, Yunqing, Zhao, Jiao, Qiu, Dong, Zhang, Xianren, Liu, Yuwen, Chen, Qianjin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: National Academy of Sciences 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9303989/
https://www.ncbi.nlm.nih.gov/pubmed/35858338
http://dx.doi.org/10.1073/pnas.2205827119
_version_ 1784752000889520128
author Deng, Xiaoli
Shan, Yun
Meng, Xiaohui
Yu, Zhaoyang
Lu, Xiaoxi
Ma, Yunqing
Zhao, Jiao
Qiu, Dong
Zhang, Xianren
Liu, Yuwen
Chen, Qianjin
author_facet Deng, Xiaoli
Shan, Yun
Meng, Xiaohui
Yu, Zhaoyang
Lu, Xiaoxi
Ma, Yunqing
Zhao, Jiao
Qiu, Dong
Zhang, Xianren
Liu, Yuwen
Chen, Qianjin
author_sort Deng, Xiaoli
collection PubMed
description Heterogeneous bubble nucleation is one of the most fundamental interfacial processes ranging from nature to technology. There is excellent evidence that surface topology is important in directing heterogeneous nucleation; however, deep understanding of the energetics by which nanoscale architectures promote nucleation is still challenging. Herein, we report a direct and quantitative measurement of single-bubble nucleation on a single silica nanoparticle within a microsized droplet using scanning electrochemical cell microscopy. Local gas concentration at nucleation is determined from finite element simulation at the corresponding faradaic current of the peak-featured voltammogram. It is demonstrated that the criteria gas concentration for nucleation first drops and then rises with increasing nanoparticle radius. An optimum nanoparticle radius around 10 nm prominently expedites the nucleation by facilitating the special topological nanoconfinements that consequently catalyze the nucleation. Moreover, the experimental result is corroborated by our theoretical calculations of free energy change based on the classic nucleation theory. This study offers insights into the impact of surface topology on heterogenous nucleation that have not been previously observed.
format Online
Article
Text
id pubmed-9303989
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher National Academy of Sciences
record_format MEDLINE/PubMed
spelling pubmed-93039892023-01-12 Direct measuring of single–heterogeneous bubble nucleation mediated by surface topology Deng, Xiaoli Shan, Yun Meng, Xiaohui Yu, Zhaoyang Lu, Xiaoxi Ma, Yunqing Zhao, Jiao Qiu, Dong Zhang, Xianren Liu, Yuwen Chen, Qianjin Proc Natl Acad Sci U S A Physical Sciences Heterogeneous bubble nucleation is one of the most fundamental interfacial processes ranging from nature to technology. There is excellent evidence that surface topology is important in directing heterogeneous nucleation; however, deep understanding of the energetics by which nanoscale architectures promote nucleation is still challenging. Herein, we report a direct and quantitative measurement of single-bubble nucleation on a single silica nanoparticle within a microsized droplet using scanning electrochemical cell microscopy. Local gas concentration at nucleation is determined from finite element simulation at the corresponding faradaic current of the peak-featured voltammogram. It is demonstrated that the criteria gas concentration for nucleation first drops and then rises with increasing nanoparticle radius. An optimum nanoparticle radius around 10 nm prominently expedites the nucleation by facilitating the special topological nanoconfinements that consequently catalyze the nucleation. Moreover, the experimental result is corroborated by our theoretical calculations of free energy change based on the classic nucleation theory. This study offers insights into the impact of surface topology on heterogenous nucleation that have not been previously observed. National Academy of Sciences 2022-07-12 2022-07-19 /pmc/articles/PMC9303989/ /pubmed/35858338 http://dx.doi.org/10.1073/pnas.2205827119 Text en Copyright © 2022 the Author(s). Published by PNAS https://creativecommons.org/licenses/by-nc-nd/4.0/This article is distributed under Creative Commons Attribution-NonCommercial-NoDerivatives License 4.0 (CC BY-NC-ND) (https://creativecommons.org/licenses/by-nc-nd/4.0/) .
spellingShingle Physical Sciences
Deng, Xiaoli
Shan, Yun
Meng, Xiaohui
Yu, Zhaoyang
Lu, Xiaoxi
Ma, Yunqing
Zhao, Jiao
Qiu, Dong
Zhang, Xianren
Liu, Yuwen
Chen, Qianjin
Direct measuring of single–heterogeneous bubble nucleation mediated by surface topology
title Direct measuring of single–heterogeneous bubble nucleation mediated by surface topology
title_full Direct measuring of single–heterogeneous bubble nucleation mediated by surface topology
title_fullStr Direct measuring of single–heterogeneous bubble nucleation mediated by surface topology
title_full_unstemmed Direct measuring of single–heterogeneous bubble nucleation mediated by surface topology
title_short Direct measuring of single–heterogeneous bubble nucleation mediated by surface topology
title_sort direct measuring of single–heterogeneous bubble nucleation mediated by surface topology
topic Physical Sciences
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9303989/
https://www.ncbi.nlm.nih.gov/pubmed/35858338
http://dx.doi.org/10.1073/pnas.2205827119
work_keys_str_mv AT dengxiaoli directmeasuringofsingleheterogeneousbubblenucleationmediatedbysurfacetopology
AT shanyun directmeasuringofsingleheterogeneousbubblenucleationmediatedbysurfacetopology
AT mengxiaohui directmeasuringofsingleheterogeneousbubblenucleationmediatedbysurfacetopology
AT yuzhaoyang directmeasuringofsingleheterogeneousbubblenucleationmediatedbysurfacetopology
AT luxiaoxi directmeasuringofsingleheterogeneousbubblenucleationmediatedbysurfacetopology
AT mayunqing directmeasuringofsingleheterogeneousbubblenucleationmediatedbysurfacetopology
AT zhaojiao directmeasuringofsingleheterogeneousbubblenucleationmediatedbysurfacetopology
AT qiudong directmeasuringofsingleheterogeneousbubblenucleationmediatedbysurfacetopology
AT zhangxianren directmeasuringofsingleheterogeneousbubblenucleationmediatedbysurfacetopology
AT liuyuwen directmeasuringofsingleheterogeneousbubblenucleationmediatedbysurfacetopology
AT chenqianjin directmeasuringofsingleheterogeneousbubblenucleationmediatedbysurfacetopology