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Title: Effect of defects on reaction of NiO surface with Pb-contained solution

Abstract

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.

Authors:
; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science - Office of Basic Energy Sciences - Scientific User Facilities Division; Korea Institute of Energy Technology Evaluation and Planning (KETEP)
OSTI Identifier:
1390798
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Volume: 7; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English

Citation Formats

Kim, Jongjin, Hou, Binyang, Park, Changyong, Bahn, Chi Bum, Hoffman, Jason, Black, Jennifer, Bhattacharya, Anand, Balke, Nina, Hong, Hawoong, Kim, Ji Hyun, and Hong, Seungbum. Effect of defects on reaction of NiO surface with Pb-contained solution. United States: N. p., 2017. Web. doi:10.1038/srep44805.
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. United States. doi:10.1038/srep44805.
Kim, Jongjin, Hou, Binyang, Park, Changyong, Bahn, Chi Bum, Hoffman, Jason, Black, Jennifer, Bhattacharya, Anand, Balke, Nina, Hong, Hawoong, Kim, Ji Hyun, and Hong, Seungbum. Mon . "Effect of defects on reaction of NiO surface with Pb-contained solution". United States. doi:10.1038/srep44805.
@article{osti_1390798,
title = {Effect of defects on reaction of NiO surface with Pb-contained solution},
author = {Kim, Jongjin and Hou, Binyang and Park, Changyong and Bahn, Chi Bum and Hoffman, Jason and Black, Jennifer and Bhattacharya, Anand and Balke, Nina and Hong, Hawoong and Kim, Ji Hyun and Hong, Seungbum},
abstractNote = {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.},
doi = {10.1038/srep44805},
journal = {Scientific Reports},
issn = {2045-2322},
number = ,
volume = 7,
place = {United States},
year = {2017},
month = {3}
}

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