SEM/EDX and XPS studies of niobium after electropolishing

被引：67

作者：

Hryniewicz, T. ^{[1
]}

Rokosz, K. ^{[1
]}

Zschommler Sandim, H. R. ^{[2
]}

机构：

[1] Politech Koszalinska, Div Surface Electrochem, PL-75620 Koszalin, Poland

[2] Univ Sao Paulo, DEMAR EEL USP, BR-05508 Sao Paulo, Brazil

来源：

APPLIED SURFACE SCIENCE | 2012年 / 263卷

关键词：

Electropolishing (EP); Nb surface; SEM/EDX results; XPS results;

D O I：

10.1016/j.apsusc.2012.09.060

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The studies of niobium after electrochemical polishing EP in sulfuric-methanesulfonic acid mixture were performed. The NbOx/Nb surface was studied by SEM/EDX and XPS methods to find out the chemical composition of the oxygen-induced structures. Specifically the XPS results obtained after EP treatment indicate prevailing part of oxygen with niobium oxides on the sample surface. In order to correctly interpret these structures the photoelectron spectra of main niobium oxides were analyzed, and the spectra of internal Nb 3d and O 1s electronic states and valence band spectra were measured for them. (C) 2012 Elsevier B. V. All rights reserved.

引用

页码：357 / 361

页数：5

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