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首页> 外文期刊>Sensors and Actuators >Novel sensor based on Ag/Ag_2S electrode for in situ measurement of dissolved H_2S in high temperature and pressure fluids
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Novel sensor based on Ag/Ag_2S electrode for in situ measurement of dissolved H_2S in high temperature and pressure fluids

机译：基于Ag / Ag_2S电极的新型传感器，用于在高温高压流体中原位测量溶解的H_2S

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摘要

This H_2S sensor, constructed from an Ag/Ag2S-based sensing element and coupled with a Zr/ZrO_2 reference electrode, and YSZ/HgO/Hg electrode, had been tested for its potential response to H_2S concentrations in fluids at temperatures from 0℃ to 400℃ and pressures up to 25 or 33 MPa, and is well suited for determining dissolved H_2S concentrations in aqueous media at elevated temperatures from 0℃ to 400℃ and at high pressures. The Ag/Ag_2S electrode is made of an Ag wire with an Ag_2S film coating, which can be pressurized and heated at high pressures and temperatures. The Nernstian response of the Ag/Ag_2S-YSZ/HgO/Hg cell potential to H_2S concentrations at 400℃ and 25 MPa is described as. ΔE (V) = 0.625+0.0667log mH_2S. The Nernstian response of the Ag/Ag_2S-Zr/ZrO_2 potential to H_2S at 1℃ and 33 MPa is described as: ΔE (V) = -0.261 - 0.02966log mH_2S.
机译：该H_2S传感器由基于Ag / Ag2S的传感元件构成，并与Zr / ZrO_2参比电极和YSZ / HgO / Hg电极耦合，已经测试了其在0℃至0℃的温度下对流体中H_2S浓度的潜在响应。 400℃，压力高达25或33 MPa，非常适合于在0℃至400℃的高温和高压下测定水性介质中的溶解H_2S浓度。 Ag / Ag_2S电极由具有Ag_2S膜涂层的Ag丝制成，可以在高压和高温下对其进行加压和加热。描述了Ag / Ag_2S-YSZ / HgO / Hg电池势在400℃和25 MPa下对H_2S浓度的能斯特响应。 ΔE（V）= 0.625 + 0.0667log mH_2S。 Ag / Ag_2S-Zr / ZrO_2势在1℃和33 MPa下对H_2S的能斯特响应描述为：ΔE（V）= -0.261-0.02966log mH_2S。

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  • 来源
    《Sensors and Actuators》 |2013年第2期|163-171|共9页
  • 作者

    R.H. Zhang; X.T. Zhang; S.M. Hu;

  • 作者单位

    Laboratory of Geochemical Kinetics, MLR Key Laboratory of Metallogeny and Mineral Assessment, Institute of Mineral Resources, Chinese Academy of Geological Sciences, Baiwanzhuang Road 26, Beijing 100037, PR China;

    Laboratory of Geochemical Kinetics, MLR Key Laboratory of Metallogeny and Mineral Assessment, Institute of Mineral Resources, Chinese Academy of Geological Sciences, Baiwanzhuang Road 26, Beijing 100037, PR China;

    Laboratory of Geochemical Kinetics, MLR Key Laboratory of Metallogeny and Mineral Assessment, Institute of Mineral Resources, Chinese Academy of Geological Sciences, Baiwanzhuang Road 26, Beijing 100037, PR China;

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  • 正文语种 eng
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  • 关键词

    Ag/Ag_2S electrode; H_2S sensor; Zr/ZrO_2 electrode; in situ measurement; high temperatures and pressures;

    机译：Ag / Ag_2S电极;H_2S传感器;Zr / ZrO_2电极;原位测量高温高压;

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