Article Abstract:
The first electrochemical oxidation-reduction cycle procedure to roughen gold substrates in 0.1 N HCl aqueous solutions containing 1 nM rutile TiO2 nanoparticles under the irradaition of UV light is presented. The SERS spectrum of polypyrrole electrodeposited on the corresponding roughened gold substrate exhibits a 5-fold higher intensity compared to that without he contribution of TiO2 nanoparticles.
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Article Abstract:
The first electrochemical method to prepare Au-containing nancomplexes with controllable particle size via roughening gold substrates with oxidation-reduction cycles (ORC) of various scans in 0.1 N KCI aqueous solutions without the addition of any stabilizer is reported. The prepared nanocomplex size increases from 2 to 50 nm with the increase of the ORC scan from 25 to 400 cycles.
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Article Abstract:
A strategy to electrodeposit polypyrrole (PPy) or roughened silver substrates, accomplished by a triangular-wave oxidation-reduction cycle (ORC) for three scans in an aqueous solution containing 0.1 N KCl is studied. Different view on how Raman spectroscopy has proved to be an effective means to evaluate the structure situation of PPy in various states.
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