Controlled synthesis of conducting-polymer polypyrrole microcontainers by electrogenerated H2 gas bubbles act as template from a surfactant cum electrolyte (2-naphthalene sulfonic acid; Β -NSA) on a stainless steel working electrode, followed by the electrochemical polymerization of pyrrole around the micelles is reported. The films consist of round grains and cup/bowl-like structures, which became lantern-like with increasing cycles. Sodium chlorate (NaClO3) was used as a reference electrolyte. The bowl diameter and room temperature conductivity ranged 50-2000 nm and 1-50 S cm-1, respectively. An analysis of these films was complemented with Raman spectroscopy to identify the oxidized PPy, polaron, and bipolarons.
Physics, Astronomy, and Materials Science
This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Applied Physics Letters and may be found at https://doi.org/10.1063/1.2168688.
Gupta, S. "Template-free synthesis of conducting-polymer polypyrrole micro/nanostructures using electrochemistry." Applied physics letters 88, no. 6 (2006): 063108.
Applied Physics Letters