In Situ Spectroscopic Observation of Activation and Transformation of Tantalum Suboxides
Wang, Ke1; Liu, Zhi2,3; Cruz, Tirma Herranz2; Salmeron, Miquel2,3; Liang, Hong1
2010
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY A
ISSN1089-5639
Volume114Issue:7Pages:2489-2497
Status已发表
DOI10.1021/jp910964s
Abstract

Using ambient pressure X-ray photoelectron spectroscopy, we were able to observe the process of oxidation of tantalum with different morphological parameters. Being able to trace surface evolution during oxidation, we evaluated the activation energy of oxidation under the influence of strain and grain boundaries. It was found that the metal was oxidized through three different stages and there was a transition stage where the phase transformed from suboxides to the equilibrium state of pentoxide. The applied stress and surface defects reduced the activation energy of oxidation.

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Indexed BySCI
Language英语
WOS Research AreaChemistry ; Physics
WOS SubjectChemistry, Physical ; Physics, Atomic, Molecular & Chemical
WOS IDWOS:000274578200010
PublisherAMER CHEMICAL SOC
WOS KeywordMETAL-SURFACES ; OXIDE-FILM ; OXIDATION ; REACTIVITY ; REDUCTION ; CHEMISTRY ; PRESSURE ; ALUMINUM ; PD(111) ; SCIENCE
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Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttps://kms.shanghaitech.edu.cn/handle/2MSLDSTB/31116
Collection个人在本单位外知识产出
Corresponding AuthorLiang, Hong
Affiliation1.Texas A&M Univ, College Stn, TX 77843 USA
2.Univ Calif Berkeley, Lawrence Berkeley Lab, Mat Sci & Chem Sci Div, Berkeley, CA 94720 USA
3.Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA
Recommended Citation
GB/T 7714
Wang, Ke,Liu, Zhi,Cruz, Tirma Herranz,et al. In Situ Spectroscopic Observation of Activation and Transformation of Tantalum Suboxides[J]. JOURNAL OF PHYSICAL CHEMISTRY A,2010,114(7):2489-2497.
APA Wang, Ke,Liu, Zhi,Cruz, Tirma Herranz,Salmeron, Miquel,&Liang, Hong.(2010).In Situ Spectroscopic Observation of Activation and Transformation of Tantalum Suboxides.JOURNAL OF PHYSICAL CHEMISTRY A,114(7),2489-2497.
MLA Wang, Ke,et al."In Situ Spectroscopic Observation of Activation and Transformation of Tantalum Suboxides".JOURNAL OF PHYSICAL CHEMISTRY A 114.7(2010):2489-2497.
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