Measurement of Hydrogen Content in Molten Metal by electrochemical cell based on oxide proton conductor.
基于氧化物质子导体的电化学电池测量熔融金属中的氢含量。
基本信息
- 批准号:04453057
- 负责人:
- 金额:$ 2.94万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for General Scientific Research (B)
- 财政年份:1992
- 资助国家:日本
- 起止时间:1992 至 1993
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
At first, the electrochemical properties of the proton-conductive solid electrolyte to be used, CaZrO_3(+In_2O_3), were investigated by measuring the hydrogen solubility, the total conductivity, and the electronic conductivity. By these measurements, it was confirmed that the protonic-conductive domain of CaZrO_3(+In_2O_3) extends to the higher temperature region than that of SrCeO_3(Yb_2O_3). Then, the hydrogen sensor for molten aluminum based on the hydrogen concentration cell was constructed by using this material as the electrolyte and the performance of this sensor was investigated. The accurate measurement of the hydrogen potential in molten aluminum is possible when the cell was designed to measure the hydrogen potential of the gas phase equilibrated with the molten metals.The similar type of hydrogen sensor for molten copper was also studied. It was found that the insertion-type sensor operates well for molten copper. But, in these high temperature and high oxygen potential, the EMF values deviate from the theoretical one owing to the appearance of positive hole conductance. The simultaneous measurement of oxygen potential was found to be necessary to evaluate the correct hydrogen potential in molten copper.An apparatus to evaluate the hydrogen activity in metals were also developed. This apparatus is based on Sieverts' method, where the partial pressure of hydrogen is determined electrochemically using the same proton-coductive solid electrolyte. The performance of this apparatus were also studied.Consequently, all the items planned in the start of this research project were accomplished successfully.
首先,通过测量氢溶解度、总电导率和电子电导率来研究所要使用的质子传导固体电解质CaZrO_3(+In_2O_3)的电化学性质。通过这些测量,证实了CaZrO_3(+In_2O_3)的质子导电畴比SrCeO_3(Yb_2O_3)的质子导电畴向高温区扩展。以该材料为电解质,构建了基于氢浓差电池的铝液氢传感器,并对其性能进行了研究。设计了测量与金属液平衡的气相氢势的氢势池,使铝液氢势的准确测量成为可能,并研究了类似的铜液氢势传感器。结果表明,插入式传感器对铜液的检测效果良好。但是,在高温高氧势下,由于空穴电导的出现,电动势值偏离理论值。为了准确地测定铜液中的氢势,必须同时测定氧势,并研制了一套测定金属中氢活度的装置。该装置基于Sieverts方法,其中使用相同的质子传导固体电解质以电化学方式确定氢的分压。并对该装置的性能进行了研究,顺利完成了本课题的前期计划。
项目成果
期刊论文数量(48)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
武津典彦: "プロトン導電性固体電解質を用いた溶融銅用水素センサー" 第18回固体イオニクス討論会講演要旨集. 27-28 (1992)
Norihiko Taketsu:“使用质子传导固体电解质的熔融铜的氢传感器”第 18 届固态离子研讨会摘要 27-28(1992 年)。
- DOI:
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- 影响因子:0
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- 通讯作者:
N.Fukatsu: "Electrochemical Determination of Hydrogen Potential in Molten Copper." Extended Abstracts of the 93' Spring Meeting of MMIJ. 121-122 (1993)
N.Fukatsu:“电化学测定熔融铜中的氢势”。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
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- 通讯作者:
K.Ito: "Electrochemical Properties of Proton-Conductive Oxide CaZrO_3(+In_2O_3)." Extended Abstracts of the 18th Symposium on Solid State Ionics in Japan. 13-14 (1992)
K.Ito:“质子传导氧化物 CaZrO_3(In_2O_3) 的电化学性质。”
- DOI:
- 发表时间:
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- 影响因子:0
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T.Yajima: "A new hydrogen sensor for molten aluminum" Sensors and Actuators B. 13-14. 697-699 (1993)
T.Yajima:“一种用于熔融铝的新型氢传感器”传感器和执行器 B.13-14。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
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武津典彦: "溶融Zn-Al合金中の溶存ガスの挙動" 日本金属学会講演概要(第113回大会). 427-427 (1993)
Norihiko Taketsu:“熔融锌铝合金中溶解气体的行为”日本金属学会演讲摘要(第 113 届大会)427-427(1993 年)。
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- 影响因子:0
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FUKATSU Norihiko其他文献
FUKATSU Norihiko的其他文献
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{{ truncateString('FUKATSU Norihiko', 18)}}的其他基金
Synthesis of supersaturated type proton conducting oxides
过饱和型质子传导氧化物的合成
- 批准号:
19206081 - 财政年份:2007
- 资助金额:
$ 2.94万 - 项目类别:
Grant-in-Aid for Scientific Research (A)
Development of the protecting method for hydrogen(and its isotopes) permeation through metallic pipes by cathodic polarization
金属管道氢(及其同位素)渗透阴极极化防护方法的研制
- 批准号:
16360373 - 财政年份:2004
- 资助金额:
$ 2.94万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Development of super high temperature-type proton conductor based on alpha alumina.
基于α氧化铝的超高温型质子导体的开发。
- 批准号:
13450308 - 财政年份:2001
- 资助金额:
$ 2.94万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Development of Ultra High-Temperature Oxide Proton Conductive Solid Electrolyte
超高温氧化物质子导电固体电解质的研制
- 批准号:
09450278 - 财政年份:1997
- 资助金额:
$ 2.94万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Absorption Mechanism of Hydrogen into Molten Aluminum
铝液吸氢机理
- 批准号:
07455431 - 财政年份:1995
- 资助金额:
$ 2.94万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Isotope Effects of Hydrogen Ion Transport in SrCeO_3(+Y_2O_3) and its Applications
SrCeO_3(Y_2O_3)中氢离子输运的同位素效应及其应用
- 批准号:
63550490 - 财政年份:1989
- 资助金额:
$ 2.94万 - 项目类别:
Grant-in-Aid for General Scientific Research (C)
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