- 決速步
- 律速階段
- 速控步
- 速率控制步驟
下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯
rate-determining step中文什么意思
例句與用法
- 6 ) , the process that h20 is adsorbed on the electrode surface and the hydroxyl group is formed to oxidize the co may be the rate - determining step ; in the region iil ( logi > l . 6 ) , all of the tafel curves show a curvature until the current densities reach the peak value , indicative of a possible limiting current . the effect of rare earth elements on methanol electro - oxidation has not been reported in literatures
在低極化區(qū)( logi 1 . 3 ) ，甲醇發(fā)生脫氫反應(yīng)并形成反應(yīng)中間體，其中co成為未被氧化的毒物，此過程成為速率限制步驟；在更高的極化區(qū)( 1 . 3 logi 1 . 6 ) ， h _ 2o吸附在電極表面并解離生成[ oh ] ，促進(jìn)了co的氧化，此為此階段速率控制步驟：在第3個(gè)極化區(qū)( 10gi 1 . 6 ) ， tafel曲線發(fā)生彎曲，電流密度也最終達(dá)到峰值。
百科釋義
In chemical kinetics, the rate (or velocity) of a reaction mechanism with several steps is often determined by the slowest step, known as the rate-determining step (RDS) or rate-limiting step. The experimental rate equation can help to identify which step is rate-determining.
詳細(xì)百科解釋