CAJ | 학술논문

使用鸡蛋蛋白(HEW)作为载体,制备鸡蛋白四苯基锰卟啉(Mn-TPP/HEW)催化剂并进行表征.考察该催化剂在不同时间、温度和压力等反应条件下的催化活性及其催化氧化乙醇生成乙醛和乙酸的能力.在最佳反应条件下,该催化剂得到的乙醇转化率和选择性(乙醛+乙酸)分别为18.3%、70.5%.并初步提出了可能的催化反应机理.
사용계단단백(HEW)작위재체,제비계단백사분기맹계람(Mn-TPP/HEW)최화제병진행표정.고찰해최화제재불동시간、온도화압력등반응조건하적최화활성급기최화양화을순생성을철화을산적능력.재최가반응조건하,해최화제득도적을순전화솔화선택성(을철+을산)분별위18.3%、70.5%.병초보제출료가능적최화반응궤리.
Manganese tetraphenylporphyrin immobilized on hen-egg white(MnTPP/HEW)is prepared and characterized by UV-Vis and FT-IR spectroscopic techniques.The catalysis of MnTPP/HEW for selective oxidation of ethanol to acetaldehyde and acetic acid using O_2 are studied.The effects of reaction time,reaction temperature and oxygen pressure on the catalytic performance of the catalyst has been investigated also.The experimental results indicate that under the optimal reaction conditions, MnTPP immobilized on hen-egg white can give the best ethanol conversion(18.3%)and the selectivity (acetaldehyde + acetic acid)(70.5%).A possible catalysis mechanism for the ethanol oxidation is given.