Polymeric nanowires directly electrosynthesized on the working electrode

• Published in: Electrochimica acta 2015-06, Vol.166, p.163-167
• Main Authors: Hernández, L.A., del Valle, M.A., Díaz, F.R., Fermin, D.J., Risbridger, T.A.G.
• Format: Article
• Language: English
• Subjects: copolymer; electro-synthesis; nanowires; poly(1-amino-9,10-anthraquinone); template
• ISSN: 0013-4686; 1873-3859
• DOI: 10.1016/j.electacta.2015.03.119

[Display omitted] •Poly(1-amino-9,10-anthraquinone) (P1AAQ) nanowires were electro-synthesized directly on a steel electrode previously modified with a thin film of poly(1AAQ-co-o-phenylenediamine).•P1AAQ nanowires were prepared employing only electrochemical techniques.•P1AAQ nanowires electro-synthesis was accomplished using a SiO2 template, such as is done for the deposition of metals, but that is pioneer in the case of polymers.•The size of P1AAQ nanowires is about 30nm in diameter and 200nm in length.•The reproducibility of P1AAQ nanowires electro-synthesis have a standard deviation of 3.357∙10−6 for Pox(0.8V) and 3.901∙10−6 for Pred(0.003V), with a good variability within the first 10 cycles (ca. 1.5%). Poly(1-amino-9,10-anthraquinone) (P1AAQ) nanowires have been directly electro-synthesized on a steel electrode, previously modified with a thin film of poly(P1AAQ-co-o-phenylenediamine), via a SiO2 mesoporous template. Nanostructures obtainment was verified by electrochemical techniques and TEM. After template removal, it was corroborated that the nanowires, about 30nm in diameter and 200nm in length, were attached to the P1AAQ surface. The reproducibility of the method exhibited a standard deviation 3.357∙10−6 for Pox(0.8V) and 3.901∙10−6 for Pred(0.003V) and, in addition, the response remains stable over ten successive voltammetric cycles. Characterization was conducted utilizing electrochemical techniques and visualized by SEM micrographs. Thus, to the pioneering methodology for obtaining polymeric nanowires utilizing just electrochemical techniques, this modification is now added in order to assure the adhesion of the polymeric nanostructures to the electrode surface; the feasibility of use of the device in the varied applications that these materials hold, is therefore envisaged.