JP2008058236A - pH電極 - Google Patents
pH電極 Download PDFInfo
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- JP2008058236A JP2008058236A JP2006237837A JP2006237837A JP2008058236A JP 2008058236 A JP2008058236 A JP 2008058236A JP 2006237837 A JP2006237837 A JP 2006237837A JP 2006237837 A JP2006237837 A JP 2006237837A JP 2008058236 A JP2008058236 A JP 2008058236A
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- palladium
- electrode
- hydrogen
- silver alloy
- measurement
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- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 78
- 239000001257 hydrogen Substances 0.000 claims abstract description 77
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 74
- 229910001316 Ag alloy Inorganic materials 0.000 claims abstract description 44
- SWELZOZIOHGSPA-UHFFFAOYSA-N palladium silver Chemical group [Pd].[Ag] SWELZOZIOHGSPA-UHFFFAOYSA-N 0.000 claims abstract description 43
- 238000001139 pH measurement Methods 0.000 claims abstract description 26
- 238000005259 measurement Methods 0.000 claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 26
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 22
- 229910052763 palladium Inorganic materials 0.000 claims description 12
- 229910052697 platinum Inorganic materials 0.000 claims description 11
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical group [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 8
- 239000008151 electrolyte solution Substances 0.000 claims description 5
- 150000002431 hydrogen Chemical class 0.000 claims description 2
- 239000000243 solution Substances 0.000 abstract description 20
- 150000004678 hydrides Chemical class 0.000 abstract description 5
- 239000007864 aqueous solution Substances 0.000 abstract description 3
- 238000002848 electrochemical method Methods 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 238000000034 method Methods 0.000 description 7
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 6
- 239000012085 test solution Substances 0.000 description 6
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 5
- 239000011734 sodium Substances 0.000 description 5
- 229910052938 sodium sulfate Inorganic materials 0.000 description 5
- 235000011152 sodium sulphate Nutrition 0.000 description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000003792 electrolyte Substances 0.000 description 4
- 229910052709 silver Inorganic materials 0.000 description 4
- 239000004332 silver Substances 0.000 description 4
- 229910021607 Silver chloride Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- -1 palladium hydride Chemical class 0.000 description 3
- 239000001103 potassium chloride Substances 0.000 description 3
- 235000011164 potassium chloride Nutrition 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 229910001252 Pd alloy Inorganic materials 0.000 description 2
- UBAZGMLMVVQSCD-UHFFFAOYSA-N carbon dioxide;molecular oxygen Chemical compound O=O.O=C=O UBAZGMLMVVQSCD-UHFFFAOYSA-N 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000007784 solid electrolyte Substances 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000010587 phase diagram Methods 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
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Abstract
【解決手段】パラジウム−銀合金に陰極電解水素チャージにより水素吸蔵を行い高温高圧環境下での安定なパラジウム−銀合金水素化物電極とすることによりpH電極として電気化学測定を行うものである。
【選択図】図2
Description
本発明は、パラジウム−銀合金を水素化物電極として室温から300℃の温度範囲にわたる高温高圧水環境中でpH測定を行うものである。
F. A. Lewis, The Palladium-Hydrogen System, Academic Press, London (1967)
2 基準電極
3 電位測定装置
4 リード線
5 測定環境の液体
6 測定容器
11 パラジウム−銀合金
12 白金対極
13 測定容器
14 水素チャージ用電解液
15 電流計
16 電解チャージ用電源
17 リード線
18 比較用パラジウム−銀合金
19 定電流印可装置
20 精密電圧測定装置
21 リード線
22 電極を固定するキャップ
23 冷却用ジャケット
24 電極ホルダー部
25 電極ガイド
26 セラミックスカバー
Claims (10)
- 水素を含むパラジウム−銀合金pH測定用電極。
- 電解液を含み、パラジウム−銀合金を陰極に接続し、白金を陽極とする装置において、前記白金に対して所定の電流を供給することにより、前記パラジウム−銀合金に水素を吸蔵させて製造された、水素を含むパラジウム−銀合金pH測定用電極。
- 前記水素を含むパラジウム−銀合金pH測定用電極が、少なくとも0.1%以上、又は好ましくは0.3%以上の水素吸蔵量を有することを特徴とする、請求項1及び2に記載の水素を含むパラジウム−銀合金pH測定用電極。
- 電解液を含み、パラジウム−銀合金を陰極に接続し、白金を陽極とする装置において、前記白金に対して所定の電流を供給することにより、前記パラジウム−銀合金に水素を吸蔵させて、水素を含むパラジウム−銀合金pH測定用電極を製造する方法。
- 前記水素を含むパラジウム−銀合金pH測定用電極が、少なくとも0.1%以上、又は好ましくは0.3%以上の水素吸蔵量を有することを特徴とする、請求項4に記載の水素を含むパラジウム−銀合金pH測定用電極を製造する方法。
- 水素を含むパラジウム−銀合金pH測定用電極と、前記pH測定用電極を支持する電極支持部と、前記電極支持部に接続するリード線とを備えた、pH測定用電極装置。
- 電解液を含み、パラジウム−銀合金を陰極に接続し、白金を陽極とする装置において、前記白金に対して所定の電流を供給することにより、前記パラジウム−銀合金に水素を吸蔵させて製造された水素を含むパラジウム−銀合金pH測定用電極を備えることを特徴とする、請求項6に記載のpH測定用電極装置。
- 前記水素を含むパラジウム−銀合金pH測定用電極が、少なくとも0.1%以上、又は好ましくは0.3%以上の水素吸蔵量を有することを特徴とする、請求項6及び7に記載のpH測定用電極装置。
- 請求項6に記載のpH測定用電極装置を、電位測定装置に接続させた、pH測定用計測装置。
- 前記水素を含むパラジウム−銀合金pH測定用電極が、少なくとも0.1%以上、又は好ましくは0.3%以上の水素吸蔵量を有することを特徴とする、請求項9に記載のpH測定用計測装置。
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JP2006237837A JP4514737B2 (ja) | 2006-09-01 | 2006-09-01 | pH電極 |
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JP2008058236A true JP2008058236A (ja) | 2008-03-13 |
JP4514737B2 JP4514737B2 (ja) | 2010-07-28 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008111708A (ja) * | 2006-10-30 | 2008-05-15 | Toshin Kogyo Kk | 照合電極 |
JP2013519881A (ja) * | 2010-02-10 | 2013-05-30 | ダイオネックス コーポレイション | 液体クロマトグラフィーシステム用の電気化学的検出セル |
KR101551639B1 (ko) | 2015-03-12 | 2015-09-08 | 길주형 | 고온고압용 수소이온농도센서 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5480189A (en) * | 1977-12-05 | 1979-06-26 | Babcock & Wilcox Co | Reference electrode for high temperature |
JPS63193053A (ja) * | 1987-02-06 | 1988-08-10 | Toshiba Corp | 高温用pH測定装置 |
JPH07153455A (ja) * | 1993-12-01 | 1995-06-16 | Technova:Kk | 複合材料電極及び水素又はその同位体の吸蔵方法 |
JP2003344344A (ja) * | 2002-05-22 | 2003-12-03 | Mitsubishi Heavy Ind Ltd | 超臨界環境における電気化学的評価方法、その基準電極、及びその装置 |
-
2006
- 2006-09-01 JP JP2006237837A patent/JP4514737B2/ja active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5480189A (en) * | 1977-12-05 | 1979-06-26 | Babcock & Wilcox Co | Reference electrode for high temperature |
JPS63193053A (ja) * | 1987-02-06 | 1988-08-10 | Toshiba Corp | 高温用pH測定装置 |
JPH07153455A (ja) * | 1993-12-01 | 1995-06-16 | Technova:Kk | 複合材料電極及び水素又はその同位体の吸蔵方法 |
JP2003344344A (ja) * | 2002-05-22 | 2003-12-03 | Mitsubishi Heavy Ind Ltd | 超臨界環境における電気化学的評価方法、その基準電極、及びその装置 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008111708A (ja) * | 2006-10-30 | 2008-05-15 | Toshin Kogyo Kk | 照合電極 |
JP4496195B2 (ja) * | 2006-10-30 | 2010-07-07 | 東伸工業株式会社 | 照合電極 |
JP2013519881A (ja) * | 2010-02-10 | 2013-05-30 | ダイオネックス コーポレイション | 液体クロマトグラフィーシステム用の電気化学的検出セル |
US8925374B2 (en) | 2010-02-10 | 2015-01-06 | Dionex Corporation | Electrochemical detection cell for liquid chromatography system |
KR101551639B1 (ko) | 2015-03-12 | 2015-09-08 | 길주형 | 고온고압용 수소이온농도센서 |
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