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首页> 外文会议>燃焼シンポジウム >Development of CO/O2 surface reaction mechanism on Pt/CeOx catalyst including reactions of metal-support interface
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Development of CO/O2 surface reaction mechanism on Pt/CeOx catalyst including reactions of metal-support interface

机译：Pt /菏索催化剂上Co / O2表面反应机理的研制，包括金属支撑界面的反应

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摘要

A detailed surface CO/O2 reaction mechanism for Pt/CeOx catalyst is developed by using gaseous and surface species measurements.Conventional oxygen storage reaction of CeOx is based only on chemical equilibrium(CeO2 ←→CeO2-x +(x/2)O2),but well-known spill over or reactions of metal-support interface have never been considered for the surface reaction mechanisms.In this study,a surface reaction mechanism of CO/O2 on Pt/CeOx is developed by taking reactions on metal,support,spill over and metal-support interface into account.Experimental results show the increase in light-off performance with the increase in oxygen concentration,and linearly adsorbed CO surface species on both metal and support surfaces.Numerical simulation results are compared with steady state experimental results and the results show good agreement over different oxygen concentration conditions.
机译：通过使用气态和表面物种测量，开发了Pt / eox催化剂的详细表面CO / O2反应机理。CEOX的转化氧气储存反应仅基于化学平衡（CEO2←→CEO2-X +（X / 2）O2） ，但是，已经考虑过众所周知的金属支持界面的反应或对表面反应机制的反应。本研究中，通过对金属的反应来开发CO / O2上的CO / O2的表面反应机制，溢出和金属支持界面考虑。实验结果表明，随着氧气浓度的增加，金属和支撑表面的线性吸附的CO表面物种。与稳态实验结果进行了稳定的仿真结果的线性吸附的CO表面物种。结果表现出对不同氧气浓度条件的良好一致性。

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