Quimica nova | |
Electrocatalytic hydrogenation of organic substrates on polymer modified electrodes embedding Ni/Pd and Ni/Pt particles | |
Abrantes, Luisa M.1  Romero, José R.2  Purgato, Fabiana L. S.2  | |
[1] Universidade de Lisboa, Lisboa, Portugal;Universidade de São Paulo, Ribeirão Preto, Brasil | |
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】
CC BY
【 预 览 】
Files | Size | Format | View |
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RO201902012614645ZK.pdf | 503KB | download |