Effect of TiO2 nanoparticles on the improved surface-enhanced Raman scattering of polypyrrole deposited on roughened gold substrates

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.

Hydrogen chloride

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Fabricating gold nanocomplexes of controllable size using electrochemical oxidation-reduction cycling of gold substrates in aqueous solution

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.

Primary nonferrous metals, not elsewhere classified, Primary Smelting and Refining of Nonferrous Metal (except Copper and Aluminum), Gold, Aqueous solution reactions

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Strategy and characteristics of polypyrrole deposited on silver substrates with silver-containing nanocomplexes

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.

Usage, Raman spectroscopy

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