Electrochemical oxygen pump using CeO2-based solid electrolyte for NOx detection independent of O-2 concentration

被引:28
作者
Hibino, T
Ushiki, K
Kuwahara, Y
机构
[1] Natl Industrial Research Inst of, Nagoya, Nagoya, Japan
关键词
electrochemical oxygen pump; oxide ionic conductor; NOx sensor;
D O I
10.1016/S0167-2738(96)00541-3
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 electrochemical oxygen pump has been studied using Ceo(0.8)Sm(0.2)O(1.9) as a solid electrolyte and gold metal as an electrode. The O-2 concentration in the flow of a mixture of 1000 ppm NO, 1-10% O-2, 5% H2O and 5% CO2 at a flow-rate of 20 ml min(-1) was electrochemically controlled to a constant value of 5% by applying anodic or cathodic currents to the cell at 900 degrees C. During oxygen pumping, NO was not electrolyzed at all and the pumping amount of oxygen obeyed Faraday's law. A potentiometic- or amperometric-type sensor for NOx, when introduced into the resulting gas stream, exhibited an output signal without influence of the O-2 concentration.
引用
收藏
页码:309 / 314
页数:6
相关论文
共 12 条
  • [1] TUNGSTEN OXIDE-BASED SEMICONDUCTOR SENSOR HIGHLY SENSITIVE TO NO AND NO2
    AKIYAMA, M
    TAMAKI, J
    MIURA, N
    YAMAZOE, N
    [J]. CHEMISTRY LETTERS, 1991, (09) : 1611 - 1614
  • [2] SOLID-STATE DETECTORS FOR POTENTIOMETRIC DETERMINATION OF GASEOUS OXIDES .1. MEASUREMENT IN AIR
    GAUTHIER, M
    CHAMBERLAND, A
    [J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1977, 124 (10) : 1579 - 1583
  • [3] MEDIUM-TEMPERATURE ELECTROLYSIS OF NO AND CH4 UNDER LEAN-BURN CONDITIONS USING YTRRIA-STABILIZED ZIRCONIA AS A SOLID-ELECTROLYTE
    HIBINO, T
    USHIKI, K
    KUWAHARA, Y
    MIZUNO, M
    MASEGI, A
    IWAHARA, H
    [J]. JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1995, 91 (13): : 1955 - 1959
  • [4] APPLICATION OF FAST IONIC CONDUCTORS IN SOLID-STATE GALVANIC CELLS FOR GAS SENSORS
    HOTZEL, G
    WEPPNER, W
    [J]. SOLID STATE IONICS, 1986, 18-9 (pt 2) : 1223 - 1227
  • [5] POTENTIOMETRIC GAS SENSORS BASED ON FAST SOLID ELECTROLYTES
    HOTZEL, G
    WEPPNER, W
    [J]. SENSORS AND ACTUATORS, 1987, 12 (04): : 449 - 453
  • [6] SELECTIVE NO2 SENSING CHARACTERISTICS OF SC2O3 MIXED NICKEL COPPER-OXIDE
    IMANAKA, N
    BANNO, S
    ADACHI, GY
    [J]. CHEMISTRY LETTERS, 1994, (02) : 319 - 322
  • [7] STABILIZED ZIRCONIA-BASED NOX SENSOR OPERATIVE AT HIGH-TEMPERATURE
    KUROSAWA, H
    YAN, YT
    MIURA, N
    YAMAZOE, N
    [J]. SOLID STATE IONICS, 1995, 79 : 338 - 343
  • [8] NEW AUXILIARY SENSING MATERIALS FOR SOLID-ELECTROLYTE NO2 SENSORS
    MIURA, N
    YAO, S
    SHIMIZU, Y
    YAMAZOE, N
    [J]. SOLID STATE IONICS, 1994, 70 (pt 1) : 572 - 577
  • [9] RESPONSE TO NITRIC-OXIDE OF THIN AND THICK SNO2 FILMS CONTAINING TRIVALENT ADDITIVES
    SBERVEGLIERI, G
    GROPPELLI, S
    NELLI, P
    LANTTO, V
    TORVELA, H
    ROMPPAINEN, P
    LEPPAVUORI, S
    [J]. SENSORS AND ACTUATORS B-CHEMICAL, 1990, 1 (1-6) : 79 - 82
  • [10] EFFECTS OF IONIC CONDUCTIVITIES OF ZIRCONIA ELECTROLYTES ON POLARIZATION PROPERTIES OF PLATINUM ANODES IN SOLID OXIDE FUEL-CELLS
    UCHIDA, H
    YOSHIDA, M
    WATANABE, M
    [J]. JOURNAL OF PHYSICAL CHEMISTRY, 1995, 99 (10) : 3282 - 3287