問題詳情

一、反應物CH3COOH在Cu(110)觸媒的熱裂解反應,其反應機制表示如下:(a) CH3COOH → CH3COOads+Hads(b) Hads+Hads → H2 [2nd order reaction ~ 300K](c) CH3COOads → CH3ads+CO2 [(c) ~ (g)反應產物在~570K時,由(d) CH3ads → CH2ads+Hads 單分子吸附之CH3COOads而得](e) CH3ads+Hads → CH4(f) CH2ads+CH2ads → C2H4(g) Hads+Hads → H2
【題組】⑴上述所列乙酸的裂解反應機制,請問那一個反應步驟為速率決定步驟(ratedetermining step)?並說明原因何在?(5 分)

參考答案