Ultrasonic effects on electroorganic processes. Part 17. Product selectivity control in cathodic reduction of acrylonitrile
Ultrasonic effects on electroorganic processes. Part 17. Product selectivity control in cathodic reduction of acrylonitrile
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超声波对有机电过程的影响。
DOI：
10.1016/s1350-4177(99)00044-9
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发表时间：
2000
影响因子：
8.4
通讯作者：
Nonaka
中科院分区：
文献类型：
--
作者：
Atobe;Sasahira;Nonaka
产物选择性为己二腈，这是形成为相应的氢二聚体产品沿着与丙腈作为水单体产品在丙烯腈的阴极还原，显着增加在超声辐照强度以上的超声空化阈值。这种超声波效应被合理化为由于通过由空化引起的高速射流促进丙烯腈分子从本体电解质溶液到阴极表面的传质。根据丙烯腈加氢二聚反应途径，详细讨论了超声波的作用机理。
Product selectivity for adiponitrile, which was formed as the corresponding hydrodimeric product along with propionitrile as the hydromonomeric product in the cathodic reduction of acrylonitrile, was significantly increased under ultrasonic irradiation with an intensity above the ultrasonic cavitation threshold. This ultrasonic effect is rationalized as due to mass transport promotion of acrylonitrile molecules to the cathode surface from the bulk electrolytic solution by high speed jet streams caused by the cavitation. A mechanism for the ultrasonic effect is discussed in detail on the basis of the reaction pathway of the hydrodimerization of acrylonitrile.