書誌事項
- タイトル別名
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- Effect of the Concentration of Hydrogen-Ion on the Flade Potential of Nickel
- ニッケル Flade デンイ ニ タイスル スイソ イオン ノウド ノ コウカ
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The anodic behavior of nickel in acid and alkaline solutions were investigated to clarify the significance of the Flade potential. Three potential-plateaus of E1=+0.13−0.060 pH, E2=+0.48−0.060 pH and E3=+1.60−0.075 pH were found on the decay curve of the passive nickel, of which E2 shows the Flade potential. Beyond the potential E3, the passive nickel dissolved into the solution in the form of trivalen tnickel ion. The observed value of E1 is close to the theoretical redox potential of Ni+H2O\ ightleftarrowsNiO+2H++2\ominus, and E3 is nearly equal to the potential of the formation of Ni2O3 in alkaline solution reported by previous workers. It was concluded from these facts that the Flade potential E2 indicates the redox potential of 3NiO+H2O\ ightleftarrowsNi3O4+2H++2\ominus and E3 the redox potential of 2Ni3O4+H2O\ ightleftarrows3Ni2O3+2H++2\ominus. It should be pointed out that the passivation of nickel in acid solution does not result from the formation of a single oxide film of NiO but the formation of the higher valence oxide of Ni3O4 or a duoble oxide films of NiO and Ni3O4.
収録刊行物
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- 日本金属学会誌
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日本金属学会誌 23 (11), 662-666, 1959
公益社団法人 日本金属学会
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詳細情報 詳細情報について
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- CRID
- 1390282681458851200
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- NII論文ID
- 130007333779
- 40018257328
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- NII書誌ID
- AN00187860
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- ISSN
- 18806880
- 24337501
- 00214876
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- NDL書誌ID
- 9152768
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- データソース種別
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- JaLC
- NDL
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