Scanning microsensors for measurement of local pH distributions st the microscale

被引：60
|
作者：
Park, JO [1 ]
Paik, CH [1 ]
Alkire, RC [1 ]
机构：
[1] UNIV ILLINOIS,DEPT CHEM ENGN,URBANA,IL 61801
来源：
JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 1996年 / 143卷 / 08期
关键词：
D O I：
10.1149/1.1837020
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Ion-selective pH microelectrodes were used to measure hydroxide ion concentration fields produced by electrochemical reduction of oxygen on 10 and 25 mu m Pt disk electrodes. The sensors were mounted on a scanning system, and the hydroxide concentration profiles over the disk electrodes were obtained. Data were compared with predictions based on the diffusion equation. The pH microelectrode was also used to verify the buildup of hydroxide ions generated by cathodic reaction on Al3Fe that was in electrical contact with Al 6061 at the rest potential in 0.6 M NaCl.
引用
收藏
页码：L174 / L176
页数：3
相关论文
共 50 条
  • [1] Local pH Measurement with Scanning Ion Conductance Microscopy
    Morris, Celeste A.
    Chen, Chiao-Chen
    Ito, Takashi
    Baker, Lane A.
    JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2013, 160 (08) : H430 - H435
  • [2] Microscale temperature measurement by scanning thermal microscopy
    Nakabeppu, O
    Suzuki, T
    JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 2002, 69 (03): : 727 - 737
  • [3] Microscale temperature measurement by scanning thermal microscopy
    O. Nakabeppu
    T. Suzuki
    Journal of Thermal Analysis and Calorimetry, 2002, 69 : 727 - 737
  • [4] Local and microscale distributions of Cenococcum geophilum in soils of coastal pine forests
    Matsuda, Y.
    Hayakawa, N.
    Ito, S.
    FUNGAL ECOLOGY, 2009, 2 : 31 - 35
  • [5] pH Microsensors Allow Local Measurements of Pitting Corrosion at MnS Sites in Stainless Steel
    Lau J.
    MRS Bulletin, 2000, 25 (9) : 4 - 4
  • [6] pH microsensors allow local measurements of pitting corrosion at MnS sites in stainless steel
    Lau, J
    MRS BULLETIN, 2000, 25 (09) : 4 - 4
  • [7] Developing an iridium oxide film modified microelectrode for microscale measurement of pH
    Li, Jianping
    Du, Yalin
    Fang, Cheng
    ELECTROANALYSIS, 2007, 19 (05) : 608 - 611
  • [8] PD-PDO PH MICROPROBE FOR LOCAL PH MEASUREMENT
    KIM, JY
    LEE, YH
    BIOTECHNOLOGY AND BIOENGINEERING, 1989, 34 (01) : 131 - 136
  • [9] Measurement of the distributions of local current density and local ionic resistance of PEFCS
    Morimoto, Y
    Suzuki, T
    Yamada, H
    Proton Conducting Membrane Fuel Cells III, Proceedings, 2005, 2002 (31): : 248 - 256
  • [10] Spatially resolved measurement of electrochemical activity and pH distributions in corrosion processes by scanning electrochemical microscopy using antimony microelectrode tips
    Izquierdo, Javier
    Nagy, Livia
    Varga, Agnes
    Santana, Juan J.
    Nagy, Geza
    Souto, Ricardo M.
    ELECTROCHIMICA ACTA, 2011, 56 (24) : 8846 - 8850
12345