摘要
利用瞬变应答方法和原位红外技术研究了在Ｐｄ／Ａｌ２Ｏ３上ＣＯ，ＣＨ３ＯＮＯ和ＮＯ吸附及在反应中的变化，探讨了吸附机理．发现ＣＯ的吸附是可逆的，线式吸附快而弱，桥式吸附慢而稳定；ＣＨ３ＯＮＯ是快的物理吸附；ＮＯ有部分不可逆吸附；反应在吸附的ＣＯ与气相ＣＨ３ＯＮＯ间进行，属ＲｉｄｅａｌＥｌｅｙ机理．
The adsorptive behavior of CO、NO、CH 3ONO and their reactive behavior have been studied by means of transient response method and insitu IR technique.It′s found that the absorption of CO is reversible and linear adsorbed CO species is fast but less stable and, bridged CO adsorbed species is slow and stable.As for CH 3ONO, there is fast physic adsorption .NO there is some unreversible adsorption.The reaction is happen in adsorptive CO and gaseous CH 3ONO.The mechanism is consistent with RidealEley′s.
出处
《广西大学学报（自然科学版）》
CAS
CSCD
1999年第3期234-237,共4页
Journal of Guangxi University（Natural Science Edition）
基金
催化研究基础国家重点实验室测试课题
关键词
一氧化碳
草酸二甲酯
瞬变应答
催化
合成
carbon monoxide
dimethyl oxalate
transient response
Insitu IR spectra
adsorption,catalysis
