High-resolution characterization of hexagonal boron nitride coatings exposed to aqueous and air oxidative environments

doi:10.1007/s12274-016-1393-2

	High-resolution characterization of hexagonal boron nitride coatings exposed to aqueous and air oxidative environments
	Jiang, Lanlan 1; Xiao, Na 1; Wang, Bingru 1; Grustan-Gutierrez, Enric 1; Jing, Xu 1; Babor, Petr 2; Kolibal, Miroslav 2; Lu, Guangyuan 3; Wu, Tianru 3; Wang, Haomin 2; Hui, Fei 1; Shi, Yuanyuan 1; Song, Bo 1; Xie, Xiaoming3,4 ; Lanza, Mario 1
	2017-06
发表期刊	NANO RESEARCH
ISSN	1998-0124
卷号	10 期号:6 页码:2046-2055
发表状态	已发表
DOI	10.1007/s12274-016-1393-2
摘要	Hexagonal boron nitride (h-BN) is believed to offer better passivation to metallic surfaces than graphene owing to its insulating nature, which facilitates blocking the flow of electrons, thereby preventing the occurrence of galvanic reactions. Nevertheless, this may not be the case when an h-BN-protected material is exposed to aqueous environments. In this work, we analyzed the stability of mono and multilayer h-BN stacks exposed to H2O2 and atmospheric conditions. Our experiments revealed that monolayer h-BN is as inefficient as graphene as a protective coating when exposed to H2O2. Multilayer h-BN offered a good degree of protection. Monolayer h-BN was found to be ineffective in an air atmosphere as well. Even a 10-15 layers-thick h-BN stack could not completely protect the surface of the metal under consideration. By combining Auger electron spectroscopy and secondary ion mass spectrometry techniques, we observed that oxygen could diffuse through the grain boundaries of the h-BN stack to reach the metallic substrate. Fortunately, because of the diffusive nature of the process, the oxidized area did not increase with time once a saturated state was reached. This makes multilayer (not monolayer) h-BN a suitable long-term oxidation barrier. Oxygen infiltration could not be observed by X-ray photoelectron spectroscopy. This technique cannot assess the chemical composition of the deeper layers of a material. Hence, the previous reports, which relied on XPS to analyze the passivating properties of h-BN and graphene, may have ignored some important subsurface phenomena. The results obtained in this study provide new insights into the passivating properties of mono and multilayer h-BN in aqueous media and the degradation kinetics of h-BN-coated metals exposed to an air environment.
关键词	hexagonal boron nitride protective coating local oxidation nanoscale two-dimensional (2D) materials
收录类别	SCI ; EI
语种	英语
资助项目	Ministry of Education, Youth and Sports of the Czech Republic[LQ1601]
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目	Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS记录号	WOS:000401320700019
出版者	TSINGHUA UNIV PRESS
EI入藏号	20170503303090
EI主题词	Auger electron spectroscopy ; Characterization ; Coatings ; Degradation ; Electron spectroscopy ; Grain boundaries ; Graphene ; Mass spectrometry ; Metals ; Monolayers ; Multilayers ; Nitrides ; Oxidation ; Passivation ; Protective coatings ; Secondary ion mass spectrometry ; Spectrometry ; Substrates ; X ray photoelectron spectroscopy
WOS关键词	CHEMICAL-VAPOR-DEPOSITION ; MECHANICAL-PROPERTIES ; GRAIN-BOUNDARIES ; GRAPHENE ; CORROSION ; COPPER ; DEGRADATION ; FABRICATION ; COMPOSITES ; PROTECTION
原始文献类型	Article
通讯作者	Lanza, Mario
引用统计
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/1354
专题	物质科学与技术学院_特聘教授组_谢晓明组
通讯作者	Lanza, Mario
作者单位	1.Soochow Univ, Inst Funct Nano & Soft Mat FUNSOM, Suzhou 215123, Peoples R China 2.Brno Univ Technol, CEITEC BUT, Brno 61669, Czech Republic 3.Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, State Key Lab Funct Mat Informat, Shanghai 200050, Peoples R China 4.Shanghai Tech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China
推荐引用方式 GB/T 7714	Jiang, Lanlan,Xiao, Na,Wang, Bingru,et al. High-resolution characterization of hexagonal boron nitride coatings exposed to aqueous and air oxidative environments[J]. NANO RESEARCH,2017,10(6):2046-2055.
APA	Jiang, Lanlan.,Xiao, Na.,Wang, Bingru.,Grustan-Gutierrez, Enric.,Jing, Xu.,...&Lanza, Mario.(2017).High-resolution characterization of hexagonal boron nitride coatings exposed to aqueous and air oxidative environments.NANO RESEARCH,10(6),2046-2055.
MLA	Jiang, Lanlan,et al."High-resolution characterization of hexagonal boron nitride coatings exposed to aqueous and air oxidative environments".NANO RESEARCH 10.6(2017):2046-2055.