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制备了 V2 O5 、 Mo O3和 V2 O5 · Mo O3复合氧化物催化剂 ,并进行了 IR表征 ;对催化剂表面乙烷的吸附性能进行了 IR和 TPD表征 .用激光促进表面反应 (L SSR)技术 ,考察了乙烷氧化脱氢生成乙烯的反应规律 .结果表明 ,氧化物表面的 V =O和 Mo=O键是乙烷主要的吸附位 . V2 O5 与 Mo O3的相互作用 ,减弱了 Mo=O键的吸附能力 .在不同的激光激发频率下 ,L SSR反应遵循吸附态激发机理或固体表面键激发机理 .温度对 L SSR反应有一定的辅助作用
The catalysts of V2 O5, Mo O3 and V2 O5 · Mo O3 composite oxides were prepared and characterized by IR. The adsorption properties of ethane on the surface of catalysts were characterized by IR and TPD. Laser induced surface reaction (L SSR) The results showed that the V = O and Mo = O bonds on the oxide surface were the main adsorption sites for ethane.The interaction between V2 O5 and Mo O3 weakened the Mo = O Bonds.The L SSR reaction follows the mechanism of the adsorption state or the mechanism of the solid surface bond excitation at different laser excitation frequencies.The temperature has a certain auxiliary effect on the L SSR reaction