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By means of the in silu IR spectroscopy fast response technique for apulse of gas,the formation and dynamic change of the intermediates on the cat-alyst surface during the synthesis of lower alcohols from CO+H_2 have beenstudied.The intermediates,such as HCOM(1715cm~(-1)),(1670cm~(-1)),HCOOM(1590,1382cm~(-1)),CH_3COM(1730cm~(-1))andCH_3COOM(1563,1434cm~(-1))were detected by IR.It was found that HCOMis the initial intermediate and can be transformed into,the growthof carbon chain is realized by the reaction of HCOM or HCOwith theadsorbed CO and H.HCOOM and CH_3COOM are not the main intermediates inthis expermental conditions.
By means of the in silu IR spectroscopy fast response technique for apulse of gas, the formation and dynamic change of the intermediates on the cat-alyst surface during the synthesis of lower alcohols from CO + H_2 have been staged. The intermediates, such as HCOM ( (1670cm -1), HCOOM (1590,1382cm -1), CH 3 COM (1730cm -1) and CH 3 COOM (1563,1434cm -1) detected by IR.It was found that HCOMis the initial intermediate and can be transformed into, the growthof carbon chain is realized by the reaction of HCOM or HCOwith theadsorbed CO and H.HCOOM and CH_3COOM are not the main intermediates inthis expermental conditions.