| Na-β氧化铝/NaOH水溶液界面电势的测定 |
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| 引用本文： | 杨华铨,毛兵,陈波珍,杨文治.Na-β氧化铝/NaOH水溶液界面电势的测定[J].物理化学学报,1987,3(6):587-591. |
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| 作者姓名： | 杨华铨 毛兵 陈波珍 杨文治 |
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| 作者单位： | Chemistry Department of Peking University |
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| 摘 要： | 测定了Na-β氧化铝管在NaOH、NaOH-KOH、NaOH-(CH_3)_4NOH以及NaOH-NaCl四种溶液的浓差电池体系中的电动势, 求得Na-β氧化铝与NaOH水溶液之间的界面电势Δφ。结果表明: 在NaOH、NaOH-NaCl水溶液中, Δφ与loga_2(Na~+)/a_1(Na~+)之间的关系服从Nernst公式; K~+离子的存在影响Δφ值, 而OH~-、(CH_3)_4N~+贴无影响。探讨了用β氧化铝在高浓碱性Na~+水溶液中做Na~+离子选择性电极的可能性。
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| 收稿时间： | 1986-06-20 |
| 修稿时间： | 1986-12-16 |
MEASUREMENTS OF THE POTENTIAL DIFFERENCE ACROSS THE Na-BETA ALUMINA/NaOH AQUEOUS SOLUTION INTERFACES |
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| Yang Huaquan,Mao Bing,Chen Bozhen,Yang Wenzhi.MEASUREMENTS OF THE POTENTIAL DIFFERENCE ACROSS THE Na-BETA ALUMINA/NaOH AQUEOUS SOLUTION INTERFACES[J].Acta Physico-Chimica Sinica,1987,3(6):587-591. |
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| Authors: | Yang Huaquan Mao Bing Chen Bozhen Yang Wenzhi |
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| Institution: | Chemistry Department of Peking University |
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| Abstract: | EMF of the concentration cells of sodium beta alumina tubes in four aqueous solutions: NaOH, NaOH-KOH, NaOH-(CH_3)_4NOH and NaOH-NaCl were measured. The potential differences across the Na-beta alumina/NaOH aqueous solution interfaces Δφ, were obtained. The results showed that the relations between Δφ and loga_2 (Na)~+/a_1(Na~+) obeyed the Nernst equation in NaOH, NaOH-NaCl aqueous solutions. The presence of K~+ ions influenced Δφ, but OH~-, (CH_3)_4N~+ did not. The possi- bility of using the beta alumina as a Na~+-ion selective electrode in alkaline Na~+-ion aqueous solutions (if Na~+ concentration≥0.01 mol L~(-1).) was discussed. |
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