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中文摘要：
采用柠檬酸溶胶-凝胶法合成了La（Ba）Co（Fe）O3钙钛矿型氧化物催化剂,通过XPS、XRD、H2-TPR、FT-IR、BET等表征手段考察了催化剂分解NO的催化活性。结果表明,LaCoO3的A位掺杂适量Ba可以提高催化剂表面的氧空位浓度,La0.8Ba0.2CoO3的B位掺杂Fe,活化了Co-O键,产生协同作用,提高了分解NO的催化活性。
英文摘要：
The perovskite La（Ba）Co（Fe）O3 catalysts were prepared by citric acid sol-gel method.Perovskite catalysts La（Ba）Co（Fe）O3 was studied by XPS、XRD、H2-TPR、FT-IR、BET.The results showed that doping small Ba at A site of LaCoO3 is considered favorable at the increase of the oxygen vacancies,doping Fe at B site of La0.8Ba0.2CoO3 activated the band of Co-O,introduced the synergistic effect between Co ion and Fe ion and enhanced the activity of NO decomposition on the catalyst.
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