• 作者： Do, Jing-Shan; Do, Young-Long
• 中文摘要： 本文探討在相轉移觸媒與氧化還原媒子存在下,在CSTER中以定電壓操作方式間接電解氧化苯甲醇之數學模式。由計算結果顯示,當反應器中氯離子濃度達到穩定值時,反應系統即達穩定狀態。當操作條件控制在較高之苯甲醇轉化率時,產物苯甲醛的濃度隨著反應時間的增加會有極大值出現。苯甲醇的轉化率隨著流率的減少與反應電壓的增加而增加。當流率與有機相對水相之體積比增加; 而反應過電壓減少時,產物苯甲醛的選擇率增加。同時計算結果亦顯示,電流效率隨著有機相對水相之體積比的增加與反應過電壓之減少而增加。
• 英文摘要： A mathematical model was derived in this study for the indirect anodic oxidation of benzyl alcohol in a CSTER which is controlled at potentiostatic condition in the presence of both phase-transfer catalyst and redox mediator. The total current of the reaction system approached towards a steady value when the steady concentration of chloride ion in the aqueous phase was obtained, as indicated from the model calculations. The maximum concentration of benzaldehyde in the CSTER was found when a higher conversion rate of benzyl alcohol had been achieved. The conversion of benzyl alcohol increased when the flow rate decreased and the applied overpotential increased. The selectivity of benzaldehyde increased when the flow rate and organic-to-aqueous volume ratio increased and the applied overpotential decreased. Increasing organic-to- aqueous volume ratio and decreasing the overpotential were found to subsequently result in the increase of current efficiency.
• 中文關鍵字： 相轉移觸媒; 氧化還原媒子; 苯甲醇; 定電壓; 過電壓
• 英文關鍵字： Phase Transfer Catalyst; Redox Mediator; Benzyl Alcohol; Potentiostate; Overpotential