Electrocatalytic hydrogenation of organic substrates on polymer modified electrodes embedding Ni/Pd and Ni/Pt particles

Química Nova

Universidade de São Paulo, Ribeirão Preto, Brasil¹  Romero, José R.¹  Purgato, Fabiana L. S.¹  Abrantes, Luisa M.¹  Universidade de Lisboa, Lisboa, Portugal¹ 

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

DOI  :  10.1590/S0100-40422009000500029

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 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】

Unknown