• 作者： Chen, Yi-Lin; Chou, Tse-Chuan
• 中文摘要： 本研究探討以過氧化物陰極與過氧化物陽極氧化正丁醇生成正丁酸之可行性。循環伏安圖譜顯示以石墨與白金為陰極時都會有很明顯的氧氣還原電流,以石墨為陰極時,以過氧化氫為中間媒子,氧化正丁醇生成正丁酸最高之電流效率為89.03%。以白金為陰極時,因為白金具有高催化活性,造成產物種類太多而無法一一鑑定。以鎳陽極在鹼性的環境下產生過氧化物陽極,氧化正丁醇生成正丁酸最高之電流效率為86.12%。在酸性的環境下,有時在鎳電極表面會產生鈍態的鎳氧化物,此時生成正丁酸之電流效率很低,否則生成正丁酸之電流效率依然很高,此源自於鎳過氧化物在酸性的環境下不安定所致。由本研究顯示藉由過氧化物陰極與過氧亡物陽極的組合可以進行陰陽極組對電解氧化反應。
• 英文摘要： Two types in-situ generated peroxide electrodes were explored in this study. The cyclic voltammograms show obvious reduction currents of oxygen in solution when graphite and platinum are used as the cathode, respectively. At graphite cathode, electrooxidation of n-butanol has high current efficiency of n-butyric acid with the hydrogen peroxide as a mediator, and the highest one is 89.03%. At platinum cathode, there are too many products to be analyzed because of the high catalytic activity of platinum. The cyclic voltammetry, UV and GC were used to examine the oxidation behavior of n- butanol at nickel electrode. Electrooxidation of n-butanol at nickel anode has also high current efficiency of n-butyric acid with the nickel peroxide as a mediator in alkaline solution, and the highest one is 86.12%. In acid solution, sometimes, inactive nickel oxide film produced, then, the current efficiency of n-butyric acid is low. Otherwise, the current efficiency of n-butyric acid is still high in acid solution. The stability of nickel peroxide in acid solution is poor. The formation of peroxides is confirmed at both cathode and anode which reveal the possible combination of peroxide cathode and peroxide anode to form a paired electrooxidation system.
• 中文關鍵字： 電氧化; 過氧化物; 陽極; 陰極; 丁醇
• 英文關鍵字： Electro Oxidation; Peroxide; Anode; Cathode; Butanol