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ypfkb

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通过对不同动力学模型的验证可知, Cu/ZSM-5催化剂上NO催化分解反应的控制步骤为两个被吸附的NO分子之间的表面双分子反应,而且NO在活性位上的吸附是可逆的,分解反应对NO的反应级数为2,对氧的反应级数为负数,氧浓度的增加阻抑了分解反应的进行。以此动力学模型为基础,测得其反应活化能为E=52kJ.mol-1,反应速率常数 与温度T的关系为
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sltmac

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ypfkb(金币+5, 翻译EPI+1): 2011-04-14 09:24:25
ringzhu(金币+50): ~~ 2011-04-18 18:52:28
ringzhu(金币+50): ~~ 2011-04-18 18:53:01
ringzhu(金币+5): ~~ 2011-04-18 18:53:08
By verification of different dynamics models to have a conclude that the control step of catalytical dehydrogenation of NO on Cu/ZSM-5 is surface bimolecular reaction happened between two adsorbed NO moleculars, but also the sorption of NO on active sites is reversible and the decomposition reaction order for NO is 2,for O is negative number,respectively. Enriched Oxygen repress the decomposition reaction. Measuring the reaction activation energy is E=52kJ.mol-1 and the relationship between rate constant and temperuture T based on this dynamics models.
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2楼2011-04-13 13:32:54
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