Characterization of oxides on niobium by Raman and infrared spectroscopy

被引：93
作者：
Huang, BX
Wang, K
Church, JS
Li, YS [1 ]
机构：
[1] Memphis State Univ, Dept Chem, Memphis, TN 38152 USA
[2] CSIRO, Wood Technol, Belmont, Vic 3216, Australia
来源：
ELECTROCHIMICA ACTA | 1999年 / 44卷 / 15期
关键词：
laser Raman spectroscopy; surface-enhanced Raman scattering; cyclic voltammetry; niobium; passivation;
D O I：
10.1016/S0013-4686(98)00385-5
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The combination of electrochemical methods, laser Raman spectroscopy (LRS), surface-enhanced Raman scattering (SERS) and infrared reflection absorption spectroscopy (IRRAS) have been used to demonstrate that a stable passivated film can easily be formed on Nb in 0.15 M NaCl. The composition of the film has been identified to be NbO2 and different forms of Nb2O5 From LRS, the film formed in 0.10 M NaOH has similar composition. A longer exposure of the Nb electrode to air favors the conversion of NbO2 to the more stable Nb2O5 and the transformation of B-Nb2O5 to H-Nb2O5. In situ analysis of the passivated film in 0.15 M NaCl was carried out by coupling the electrochemical technique with LRS acid SERS. The results indicated the presence of different forms of Nb2O5 at the metal/solution interfaces, (C) 1999 Elsevier Science Ltd. All rights reserved.
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页码：2571 / 2577
页数：7
相关论文
共 25 条
  • [1] ANOMALOUSLY INTENSE RAMAN-SPECTRA OF PYRIDINE AT A SILVER ELECTRODE
    ALBRECHT, MG
    CREIGHTON, JA
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1977, 99 (15) : 5215 - 5217
  • [2] ARROV LD, 1991, J RAMAN SPECTROSC, V22, P573
  • [3] Chang R.K., 1982, Surface Enhanced Raman Scattering
  • [4] THE ANODIC BEHAVIOR OF NIOBIUM .1. THE STATE-OF-THE-ART
    DALKAINE, CV
    DESOUZA, LMM
    NART, FC
    [J]. CORROSION SCIENCE, 1993, 34 (01) : 109 - 115
  • [5] Faulkner L., 1980, ELECTROCHEMICAL METH
  • [6] RAMAN-SPECTRA OF PYRIDINE ADSORBED AT A SILVER ELECTRODE
    FLEISCHMANN, M
    HENDRA, PJ
    MCQUILLAN, AJ
    [J]. CHEMICAL PHYSICS LETTERS, 1974, 26 (02) : 163 - 166
  • [7] XPS AND AES STUDIES ON OXIDE-GROWTH AND OXIDE COATINGS ON NIOBIUM
    GRUNDNER, M
    HALBRITTER, J
    [J]. JOURNAL OF APPLIED PHYSICS, 1980, 51 (01) : 397 - 405
  • [8] OBTAINING SURFACE-ENHANCED RAMAN-SPECTRA FROM THE PASSIVE FILM ON IRON
    GUI, J
    DEVINE, TM
    [J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1991, 138 (05) : 1376 - 1384
  • [9] ADSORBATE-SUBSTRATE RESONANT INTERACTIONS OBSERVED FOR CO ON CU(100) IN THE FAR INFRARED
    HIRSCHMUGL, CJ
    WILLIAMS, GP
    HOFFMANN, FM
    CHABAL, YJ
    [J]. PHYSICAL REVIEW LETTERS, 1990, 65 (04) : 480 - 483
  • [10] SURFACE RAMAN SPECTROELECTROCHEMISTRY .1. HETEROCYCLIC, AROMATIC, AND ALIPHATIC-AMINES ADSORBED ON ANODIZED SILVER ELECTRODE
    JEANMAIRE, DL
    VANDUYNE, RP
    [J]. JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1977, 84 (01) : 1 - 20
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