天津工业大学学报
天津工業大學學報
천진공업대학학보
JOURNAL OF TIANJIN POLYTECHNIC UNIVERSITY
2015年
3期
36-40,46
,共6页
李建新%方肖%王虹
李建新%方肖%王虹
리건신%방초%왕홍
电化学合成%MnOx/Ti电催化膜反应器%环己烷%环己醇%环己酮
電化學閤成%MnOx/Ti電催化膜反應器%環己烷%環己醇%環己酮
전화학합성%MnOx/Ti전최화막반응기%배기완%배기순%배기동
electrochemical synthesis%MnOx/Ti eletrocatalytic membrane reactor%cyclohexane%cyclohexanol%cyclohex-anone
采用浸渍涂覆法制备出MnOx/Ti电催化膜.以MnOx/Ti电催化膜为阳极,以不锈钢网为阴极,构建电催化膜反应器用于催化氧化环己烷制备环己醇和环己酮;考察MnOx/Ti膜材料电化学性能以及膜反应器的不同操作参数对环己烷转化率、环己醇和环己酮选择性的影响.结果表明:MnOx/Ti膜材料的电化学性能相对Ti膜明显增强;当反应物浓度为10 mmol/L、停留时间为34.3 min、电流密度为2.9 mA/cm2时,环己烷转化率达到12.5%,环己醇的选择性为38.7%,环己酮的选择性为50.1%.
採用浸漬塗覆法製備齣MnOx/Ti電催化膜.以MnOx/Ti電催化膜為暘極,以不鏽鋼網為陰極,構建電催化膜反應器用于催化氧化環己烷製備環己醇和環己酮;攷察MnOx/Ti膜材料電化學性能以及膜反應器的不同操作參數對環己烷轉化率、環己醇和環己酮選擇性的影響.結果錶明:MnOx/Ti膜材料的電化學性能相對Ti膜明顯增彊;噹反應物濃度為10 mmol/L、停留時間為34.3 min、電流密度為2.9 mA/cm2時,環己烷轉化率達到12.5%,環己醇的選擇性為38.7%,環己酮的選擇性為50.1%.
채용침지도복법제비출MnOx/Ti전최화막.이MnOx/Ti전최화막위양겁,이불수강망위음겁,구건전최화막반응기용우최화양화배기완제비배기순화배기동;고찰MnOx/Ti막재료전화학성능이급막반응기적불동조작삼수대배기완전화솔、배기순화배기동선택성적영향.결과표명:MnOx/Ti막재료적전화학성능상대Ti막명현증강;당반응물농도위10 mmol/L、정류시간위34.3 min、전류밀도위2.9 mA/cm2시,배기완전화솔체도12.5%,배기순적선택성위38.7%,배기동적선택성위50.1%.
The MnOx/Ti eletrocatalytic membrane was prepared via a dip-coating method. The MnOx/Ti eletrocatalytic mem-brane reactor assembled by the MnOx/Ti eletrocatalytic membrane as the anode and a stainless steel mesh as the cathode was employed for oxidation of cyclohexane to produce cyclohexanone and cyclohexanol. The electro-chemical performance of MnOx/Ti membrane and the effects of the different operation parameters on cyclohexane conversion and selectivity to cyclohexanol and cyclohexanone were investigated. Results indicate that the electro-chemical performance of MnOx/Ti membrane was improved significantly compared with Ti membrane; 12.5 %! conversion of cyclohexane, 38.7%!selectivity to cyclohexanol and 50.1%!selectivity to cyclohexanone were ob-tained under the operating conditions of residence time of 34.3 min, cyclohexane concentration of 10 mmol/L and current density of 2.9 mA/cm2.