Oxidation of formic acid on palladium anodes in acidic medium. Effect of Pd(II) ions

✍ Scribed by A.G. Pavese; V.M. Solis; M.C. Giordano

• Publisher: Elsevier Science
• Year: 1987
• Tongue: English
• Weight: 385 KB
• Volume: 32
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/0013-4686(87)80037-3

✦ Synopsis

Electra-oxidation of HCOOH on Pd in acidic medium is studied by cyclic voltammetry. Homogeneous oxidation of HCOOH by Pd(I1) ions is followed by potential decay at open circuit and by spectrophotometry. An enhancement of HCOOH electro-oxidation current is found by Pd( II) addition to the working solution or when electrogeneration of Pd(II) occurs. The oxidative properties of these ions, both in a homogeneous reaction with HCOOH and in a heterogeneous one with electroformed HCOOH intermediates are taken into account to explain the observed effects.