Paim, Leonardo L. [UNESP]Hammer, Peter [UNESP]Stradiotto, Nelson Ramos [UNESP]2014-05-202014-05-202011-06-01Electroanalysis. Malden: Wiley-blackwell, v. 23, n. 6, p. 1488-1496, 2011.1040-0397http://hdl.handle.net/11449/25594The glassy carbon electrode was modified with a nickel pentacyanonitrosylferrate film by electrodeposition of Ni and subsequent derivatization with NaPCNF. The film was characterized by XPS and electrochemical methods. Cyclic voltammetry of the NiPCNF onto the GC shows a redox couple (Fe(III)/Fe(II)) with E(ol) of 538 mV (I(pa)/I(pc) around 1) and Delta E(p) of 93 mV in 0.5 mol L(-1) KNO(3), with a diffusion-controlled process. There was a decrease of anodic peak currents of the film in the presence of sulfide and 2-propanethiol due to a precipitation reaction on the film surface by nucleophilic attack.1488-1496engMercaptanSulfideNickel pentacyanonitrosylferrateCyclic voltammetrySquare wave voltammetryArtigo10.1002/elan.201000723WOS:000291554700027Acesso restrito646684102350613100721730180057120000-0002-3823-0050