CAJ | 학술논문

制备了Fe,Co,Cu,Cr和Mn金属氧化物催化剂,所用载体为Al2O3-Ce0.5Zr0.5O2复合氧化物.利用X射线衍射(XRD),程序升温还原(TPR),储氧量测试,BET比表面测试和光电子能谱(XPS)表征了催化剂.并利用活性测试表征了各种催化剂对乙酸乙酯催化燃烧能力.各种表征结果证实,由于催化剂Mn/Al2O3-Ce0.5Zr0.5O2(1∶2,质量比)具有最多的可还原物种,Cu/Al2O3-Ce0.5Zr0.5O2(1∶2)具有较多的可还原物种和最强的可还原能力,使它们对乙酸乙酯催化燃烧表现出了最好的活性.在催化剂Cu/Al2O3-Ce0.5Zr0.5O2(1∶2)和Mn/Al2O3-Ce0.5Zr0.5O2(1∶2)上,乙酸乙酯于245℃转化了99％,表明这两种催化剂具有广泛的应用潜力.
제비료Fe,Co,Cu,Cr화Mn금속양화물최화제,소용재체위Al2O3-Ce0.5Zr0.5O2복합양화물.이용X사선연사(XRD),정서승온환원(TPR),저양량측시,BET비표면측시화광전자능보(XPS)표정료최화제.병이용활성측시표정료각충최화제대을산을지최화연소능력.각충표정결과증실,유우최화제Mn/Al2O3-Ce0.5Zr0.5O2(1∶2,질량비)구유최다적가환원물충,Cu/Al2O3-Ce0.5Zr0.5O2(1∶2)구유교다적가환원물충화최강적가환원능력,사타문대을산을지최화연소표현출료최호적활성.재최화제Cu/Al2O3-Ce0.5Zr0.5O2(1∶2)화Mn/Al2O3-Ce0.5Zr0.5O2(1∶2)상,을산을지우245℃전화료99％,표명저량충최화제구유엄범적응용잠력.
The catalysts for the combustion of ethyl acetat ewer eprepared using Fe,Co,Cu,Cr,and Mn metal oxides as active components supported on Al2O3-Ce0.5Zr0.5O2 mixed oxides and characterized by X-ray diffraction(XRD),temperature programmed reduction(TPR),oxygen storage capacity measurement,BET surface area,XPS measurement,and activity test.According to the results of characterization,it was found that Cu/Al2O3-Ce0.5Zr0.5O2(1:2,mass ratio)and Mn/Al2O3-Ce0.5Zr0.5O2(1:2)catalysts presented excellent activity for the catalytic combustion of ethyl acetate,because of the more reducible species and high reducibility of the catalysts.For ethyl acetate oxidation,more than 99%convemion Was achieved at 245 ℃ over catalysts Cu/A12O3-Ce0.5Zr0.4O2(1:2)and Mn/Al2O3-Ce0.5Zr0.5O2(1:2,mass ratio)indicating that the catalysts had great potential for wide use.