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Pt/HM,Pd/HM催化剂上NO-TPSR和CO-NO反应 被引量:3

The CO-NO Reaction and the NO-TPSR on Pt/HM and Pd/HM Catalysts
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摘要 NO-TPSR and CO-NO catalytic reaction on Pt/HM and Pd/HM were studied. There are three kinds of NO adsoption sites. The lower temperature adsoption site is attributed to the metal Pt or Pd, and the two higher temperature adsoption sites are attributed to the basic sites on HM surface. The adsorbed NO undergoes extensive de composition to form N2. N2O and O2 during NO thermal desorption on all catalysts studied. The desorption of N2. N2O and NO on Pt/HM catalyst is easier than that on Pd/HM catalyst. Pt/HM catalytic activity for CO-NO reaction is higher than Pd/HM’s,which is consistant with NO decomposition ability of the catalyst. The dissociation of NO on catalyst is the rate determing step of CO-NO reaction. NO-TPSR and CO-NO catalytic reaction on Pt/HM and Pd/HM were studied. There are three kinds of NO adsoption sites. The lower temperature adsoption site is attributed to the metal Pt or Pd, and the two higher temperature adsoption sites are attributed to the basic sites on HM surface. The adsorbed NO undergoes extensive de composition to form N2. N2O and O2 during NO thermal desorption on all catalysts studied. The desorption of N2. N2O and NO on Pt/HM catalyst is easier than that on Pd/HM catalyst. Pt/HM catalytic activity for CO-NO reaction is higher than Pd/HM's,which is consistant with NO decomposition ability of the catalyst. The dissociation of NO on catalyst is the rate determing step of CO-NO reaction.
出处 《物理化学学报》 SCIE CAS CSCD 北大核心 1996年第5期472-475,共4页 Acta Physico-Chimica Sinica
基金 浙江省教委资助
关键词 一氧化氮 一氧化碳 分子筛 催化剂 NO-TPSR, CO-NO catalytic reaction, Pt,Pd
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  • 1金松寿,有机催化,1986年
  • 2袁贤鑫,化工环保,1984年,4卷,6期,419页
  • 3匿名著者

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