高活性N 2O 分解催化剂BaCo 6 Al 2.3 研究

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吴星星,马木提江吐尔逊,孙兴涛,王新平.高活性N 2O 分解催化剂BaCo 6 Al 2.3 研究[J].,2016,56(5):447-453

高活性N 2O 分解催化剂BaCo 6 Al 2.3 研究

An investigation on highly active BaCo 6Al 2.3 catalyst for N 2O decomposition

DOI：10.7511/dllgxb201605002

中文关键词:N 2O分解催化稳定性力学强度杂质气体

英文关键词:N 2O decomposition catalytic stability mechanical strength impurity gas

基金项目:“八六三”国家高技术研究发展计划资助项目(2013AA030705)；国家自然科学基金资助项目(2117701621277019).

作者	单位
吴星星,马木提江吐尔逊,孙兴涛,王新平

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中文摘要:

用共沉淀法制备了BaCO 3修饰的NiO和Co 3O 4，用于N 2O分解反应的催化剂．研究发现，有最佳组成的BaCo 6催化剂比Ba x Ni 6( x =0~2)催化剂活性更高．对于BaCo 6催化剂，加入了适量作为黏结剂的勃姆石以增加催化剂的力学强度．所得BaCo 6Al 2.3 催化剂，既有很好的力学强度又有较高的催化活性．在450 ℃，该BaCo 6Al 2.3 催化剂在含0.2% N 2O、5% O 2、2% H 2O、0.01% NO的Ar气氛中，表现出非常稳定的催化活性．

英文摘要:

NiO, Co 3O 4 doped by BaCO 3 are prepared by coprecipitation to be used as catalysts for N 2O decomposition. It is found that the BaCo 6 catalyst with the optimum composition is much more active than the series of Ba x Ni 6 ( x =0-2) catalysts. For the BaCo 6 catalyst, to increase its mechanical strength, boehmite as binder is added in appropriate amount, which leads to the BaCo 6Al 2.3 catalyst with both better mechanical strength and desired activity for application. At 450 ℃, the BaCo 6Al 2.3 catalyst exhibits a stable catalytic activity with time on stream for the feed gas 0.2% N 2O, 5% O 2, 2% H 2O, 0.01% NO in Ar.

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高活性N 2O 分解催化剂BaCo 6 Al 2.3 研究

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