phosphomolybdic acid 中文意思是什麼
phosphomolybdic acid
解釋
磷鉬酸- acid : adj. 1. 酸味的。2. 【化學】酸的，酸性的。3. 〈比喻〉尖酸刻薄的，易怒的。n. 1. 酸味物。2. 【化學】酸。adv. -ly ,-ness n.
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In order to improve the electro - catalytic activity of platinum based catalyst to methanol oxidation, in this thesis, firstly prepare heteropoly acid modified pt / gc electrode with different concentration by cyclic voltammetry method, and then test the cyclic voltammetry curves individually in vitriolic and methanol solution. the study shows the best concentration for both phosphomolybdic acid and phosphotungstic acid is 1 10 ~ ( - 3 ) mol / l. and find the more heteropoly acid modified on electrode, the lower peak - up potential towards methanol because of the existence of oxygenous species
為了改善鉑基催化劑氧化甲醇的催化活性，本論文首先通過循環伏安掃描法制備了不同濃度磷鉬酸和磷鎢酸修飾的pt / gc電極，通過研究pt / gc電極在修飾前後在硫酸溶液中及含甲醇的硫酸溶液中的循環伏安行為發現，磷鉬酸和磷鎢酸均能在ptru / c電極上發生氧化還原反應，而且雜多酸修飾濃度對pt / gc電極氧化甲醇的催化活性有很大影響。 -
Because the tungsten from the phosphotungstic acid could pull out and deposit on the surface of catalyst, and the electronegativity of mo - o is smaller than that of w - o. the smaller the electronegativity is, the higher oxidation activity is. thus phosphomolybdic acid shows better catalytic oxidation activity than phosphotungstic acid
由於磷鎢酸中的鎢可以脫出並少量沉積到催化劑表面，而且從電負性來說mo - o的鍵能小於w - o ，鍵能小的雜多酸有較強的氧化性，所以鉬系雜多酸催化活性要好於鎢系雜多酸。 -
The result shows that ptrumoo _ 3 / c shows the best catalytic activity towards methanol and phosphomolybdic acid modified ptrumoo _ 3 / c electrode can be considered as the best anodic electrode for dmfc. finally, great effort on explaining the cooperation of heteropolyacid and carbon supported alloy electrode
結果發現， ptrumoo _ 3 / c電極對甲醇的電催化氧化活性最好，其中磷鉬酸修飾ptrumoo _ 3 / c電極氧化甲醇的電催化活性最高。
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