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利用脉冲反应证实了在钙钛矿型La_(0.5)Sr_(0.5) MnO_3催化剂上一氧化碳氧化反应在低温区(146℃以下)为Eley—Rideal单点吸附机理,并对此反应进行了初步反应级数考察。研究了晶格氧开始参与氧化反应的温度和高温区的反应情况,估算了表面晶格氧的活动度。
The single-point adsorption of carbon monoxide on perovskite-type La 0.5 Sr 0.5 MnO 3 catalyst at low temperature (below 146 ℃) was confirmed by pulsed reaction. The reaction was carried out at the initial reaction stage Number of visits. The reaction of lattice oxygen with the temperature and the high temperature region that started to participate in the oxidation reaction was studied, and the activity of surface lattice oxygen was estimated.