【摘要】 担载于Ａｌ＿２Ｏ＿３和ＺｒＯ＿２上的三种金属羰基络合物在Ｈｅ气中进行程序升温分解（ＴＰＤＥ）时，其羰基发生表面歧化反应生成ＣＯ＿２能力的次序为ＮａＲｕＣｏ＿３（ＣＯ）＿（１２）＞＞Ｒｕ＿３（ＣＯ）＿（１２）＞＞Ｃ＿３Ｈ＿７ＣＣｏ＿３（ＣＯ）＿９。吸附于担载Ｒｕ＿３和Ｃｏ＿３上的ＣＯ在Ｈｅ气中进行程序升温脱附（ＴＰＤ）时发生表面歧化反应生成ＣＯ＿２。在Ｈ＿２气中，吸附于担载Ｒｕ＿３上的ＣＯ力Ｈ＿２生成ＣＨ＿４，吸附于担载Ｃｏ＿３上的ＣＯ却生成Ｃｏ＿２，在担载ＲｕＣｏ＿３上的ＣＯ几乎完全力Ｈ＿２生成ＣＨ＿４。以ＺｒＯ＿２为载体的Ｒｕ＿３、Ｃｏ＿３和ＲｕＣｏ＿３催化剂上的ＣＯ吸附和反应能力均大于以Ａｌ＿２Ｏ＿３为载体者。吸附于以ＺｒＯ＿２为载体的ＲｕＣｏ＿３催化剂上的ＣＯ在ＴＰＤ和ＩＲ谱上并不显示ＣＯ物种的存在，分析了Ｃ＿（ａｄｓ）和Ｏ＿（ａｄｓ）物种存在的原因。根据实验结果还讨论了金属、载体对催化性能的影响和表面反应机理。更多还原

【Abstract】 TPDE-GC results show that the ability for disproportionation of carbonylgroups in three metal carbonyls supported on Al₂O₃ and ZrO₂ follows the follwing order :NaRuCo₃（CO）₁₂》Ru₃（CO）₁₂》C₃H₇CCo₃（CO）₉.During the TPD of CO adsorbed on Ru₃and Co₃ catalysts prepared from supported complexes in He stream,the desorbed productwas CO₂.It is obvious that the CO₂ was formed from the surface disproportionation of COadsorbed on both catalysts,During the TPSR of CO in H₂ stream,the CO adsorbed on sup-ported Ru₃ catalysts was mainly hydrogenated to CH₄.However,the reaction product of COadsorbed on supported Co₃ catalysts was composed essentially of CO₂.It is noticed that theadsorbed species of CO on RuCo₃/ZrO₂ was not observed in TPD-GC profile and IR spectra.Nevertheless,during the TPSR of CO in H₂ stream,Iarge amount of CH₄ in reaction productwas observed. It seems that the CO on RuCo₃/ZrO₂ catalyst prepared from NaRuCo₃（CO）₁₂complex is easily dissociated to C_adsand O_ads due to the common action of Na￣+ and ZrO₂.TP-SR-GC results show that the abilities for adsorption and reaction of CO on Ru₃, Co₃ andRuCo₃ supported on ZrO₂ are higher than those with as the support Al₂O₃.The selectivity tomethane in the conversion of CO on supported RuCo₃ is higher than that on supported Ru.更多还原