Hidrogenação eletrocatalítica de substratos orgânicos utilizando eletrodos modificados poliméricos contendo partículas de Ni/Pd e Ni/Pt

Química Nova

Fabiana L. S. Purgato²  José R. Romero²  Luisa M. Abrantes¹ 

[1] ,Universidade de São Paulo Faculdade de Filosofia Ciências e Letras de Ribeirão Preto Departamento de QuímicaRibeirão Preto SP ,Brasil

关键词: modified electrode;    palladium and platinum particles;    complete aromatic hydrogenation;   

DOI  :  10.1590/S0100-40422009000500029

来源: SciELO

【 摘 要 】

Novel modified electrodes bearing dispersed Pd and Pt particles have been prepared from poly (allyl ether of the p-benzenesulfonic acid) films with incorporated nickel particles making use of galvanic displacement reactions. The SEM analysis of the new modified electrodes revealed efficient deposition of Pd but weak up-take of Pt. Electrocatalytic hydrogenation of several classes of organic substrates were carried out using the MEs Ni, Ni/Pd and Ni/Pt. The Ni/Pd ME showed to be the best of them for the hydrogenation of double, triple and carbonyl bonds. The complete hydrogenation of the aromatic rings for the well-adsorbed substrates acetophenone and benzophenone is noteworthy.

【 授权许可】

CC BY-NC   
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