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Evaluation of a new rigid carbon–castor oil polyurethane composite as an electrode material

2002; Elsevier BV; Volume: 57; Issue: 5 Linguagem: Inglês

10.1016/s0039-9140(02)00122-4

1873-3573

Renata Kelly Mendes, Salvador Claro-Neto, Éder Tadeu Gomes Cavalheiro,

Conducting polymers and applications

Polyurethane resin derived from castor oil was used to prepare a graphite composite intented to be applied in voltammetry. The best graphite/resin content in the composite was evaluated using cyclic voltammetry. The useful potential window was investigated in different electrolytes with pH ranging from 1 to 13, with good results in relation to the glassy carbon electrode. Response of this new electrode material to ferricyanide, hydroquinone, catechol and cadmium(II) ions was investigated in cyclic voltammetry and/or differential pulse voltammetry. The composite showed to be also useful in flow procedures.