| 负载型燃烧催化剂La_(0.8)Sr_(0.2)CoO_3/ZrO_2-CeO_2的性能研究 |
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| 引用本文： | 王克冰,沈岳年,胡瑞生,付冬.负载型燃烧催化剂La_(0.8)Sr_(0.2)CoO_3/ZrO_2-CeO_2的性能研究[J].内蒙古大学学报(自然科学版),2001(3). |
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| 作者姓名： | 王克冰 沈岳年 胡瑞生 付冬 |
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| 作者单位： | 内蒙古大学化学化工学院!内蒙古呼和浩特010021 |
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| 基金项目： | 国家自然科学基金!资助项目 ( 2 98690 0 1 ) |
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| 摘 要： | 以稀土复合氧化物 La0 .8Sr0 .2 Co O3为活性组分 ,Zr O-Ce O2 为载体 ,采用浸渍法制备出负载型燃烧催化剂 La0 .8Sr0 .2 Co O3/Zr O2 -Ce O2 .用 XRD、TPR、二甲苯完全氧化研究了催化剂的晶相、还原性能及催化活性 ,并与负载型催化剂 La0 .8Sr0 .2 Co O3/堇青石和单一相 La0 .8Sr0 .2Co O3催化剂进行了对比 .结果表明 ,负载型 La0 .8Sr0 .2 Co O3/Zr O2 -Ce O2 催化剂具有较好的催化活性和抗高温性能 .
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| 关 键 词： | La0.8Sr0.2CoO3 ZrO2-CeO2 二甲苯完全氧化 XRD TPR |
Studies on Properties of Supported Combustion Catalysts La_(0.8) Sr_(0.2) CoO_3/ZrO_2-CeO_2 |
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| WANG Ke bing,SHEN Yue nian,HU Rui sheng,FU Dong.Studies on Properties of Supported Combustion Catalysts La_(0.8) Sr_(0.2) CoO_3/ZrO_2-CeO_2[J].Acta Scientiarum Naturalium Universitatis Neimongol,2001(3). |
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| Authors: | WANG Ke bing SHEN Yue nian HU Rui sheng FU Dong |
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| Abstract: | A series of supported rare earch compound oxide catalysts La 0.8 Sr 0.2 CoO 3 were prepared by impregnating support ZrO 2-CeO 2 with corresponding aqueous solutions of mixtures of La,Sr and Co nitrates (we substituted LSC,ZCO for La 0.8 Sr 0.2 CoO 3,ZrO 2-CeO 2 respectively in this paper).The phase identification,reduction properties and activity of LSC/ZCO were studied by means of XRD,TPR and the complete oxidation reaction of xylene respectively,and compared with catalysts LSC/cordierite and single phase LSC as well.It is shown that,a definite interaction between support ZCO and active component LSC is presented.The catalyst LSC/ZCO exhibits higher catalytic acitivity and predominant thermal stability. |
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| Keywords: | La 0 8 Sr 0 2 CoO 3 ZrO 2-CeO 2 XRD TPR complete oxidation reaction of xylene |
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