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Effect of defects on reaction of NiO surface with Pb-contained solution
In order to understand the role of defects in chemical reactions, we used two types of samples, which are molecular beam epitaxy (MBE) grown NiO(001) film on Mg(001) substrate as the defect free NiO prototype and NiO grown on Ni(110) single crystal as the one with defects. In-situ observations for o...
Autores principales: | , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5357842/ https://www.ncbi.nlm.nih.gov/pubmed/28317881 http://dx.doi.org/10.1038/srep44805 |
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author | Kim, Jongjin Hou, Binyang Park, Changyong Bahn, Chi Bum Hoffman, Jason Black, Jennifer Bhattacharya, Anand Balke, Nina Hong, Hawoong Kim, Ji Hyun Hong, Seungbum |
author_facet | Kim, Jongjin Hou, Binyang Park, Changyong Bahn, Chi Bum Hoffman, Jason Black, Jennifer Bhattacharya, Anand Balke, Nina Hong, Hawoong Kim, Ji Hyun Hong, Seungbum |
author_sort | Kim, Jongjin |
collection | PubMed |
description | In order to understand the role of defects in chemical reactions, we used two types of samples, which are molecular beam epitaxy (MBE) grown NiO(001) film on Mg(001) substrate as the defect free NiO prototype and NiO grown on Ni(110) single crystal as the one with defects. In-situ observations for oxide-liquid interfacial structure and surface morphology were performed for both samples in water and Pb-contained solution using high-resolution X-ray reflectivity and atomic force microscopy. For the MBE grown NiO, no significant changes were detected in the high-resolution X-ray reflectivity data with monotonic increase in roughness. Meanwhile, in the case of native grown NiO on Ni(110), significant changes in both the morphology and atomistic structure at the interface were observed when immersed in water and Pb-contained solution. Our results provide simple and direct experimental evidence of the role of the defects in chemical reaction of oxide surfaces with both water and Pb-contained solution. |
format | Online Article Text |
id | pubmed-5357842 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-53578422017-03-22 Effect of defects on reaction of NiO surface with Pb-contained solution Kim, Jongjin Hou, Binyang Park, Changyong Bahn, Chi Bum Hoffman, Jason Black, Jennifer Bhattacharya, Anand Balke, Nina Hong, Hawoong Kim, Ji Hyun Hong, Seungbum Sci Rep Article In order to understand the role of defects in chemical reactions, we used two types of samples, which are molecular beam epitaxy (MBE) grown NiO(001) film on Mg(001) substrate as the defect free NiO prototype and NiO grown on Ni(110) single crystal as the one with defects. In-situ observations for oxide-liquid interfacial structure and surface morphology were performed for both samples in water and Pb-contained solution using high-resolution X-ray reflectivity and atomic force microscopy. For the MBE grown NiO, no significant changes were detected in the high-resolution X-ray reflectivity data with monotonic increase in roughness. Meanwhile, in the case of native grown NiO on Ni(110), significant changes in both the morphology and atomistic structure at the interface were observed when immersed in water and Pb-contained solution. Our results provide simple and direct experimental evidence of the role of the defects in chemical reaction of oxide surfaces with both water and Pb-contained solution. Nature Publishing Group 2017-03-20 /pmc/articles/PMC5357842/ /pubmed/28317881 http://dx.doi.org/10.1038/srep44805 Text en Copyright © 2017, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Kim, Jongjin Hou, Binyang Park, Changyong Bahn, Chi Bum Hoffman, Jason Black, Jennifer Bhattacharya, Anand Balke, Nina Hong, Hawoong Kim, Ji Hyun Hong, Seungbum Effect of defects on reaction of NiO surface with Pb-contained solution |
title | Effect of defects on reaction of NiO surface with Pb-contained solution |
title_full | Effect of defects on reaction of NiO surface with Pb-contained solution |
title_fullStr | Effect of defects on reaction of NiO surface with Pb-contained solution |
title_full_unstemmed | Effect of defects on reaction of NiO surface with Pb-contained solution |
title_short | Effect of defects on reaction of NiO surface with Pb-contained solution |
title_sort | effect of defects on reaction of nio surface with pb-contained solution |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5357842/ https://www.ncbi.nlm.nih.gov/pubmed/28317881 http://dx.doi.org/10.1038/srep44805 |
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