Figure 1 (IMAGE)
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Mechanism to generate nanostructured and nanoporous gold surfaces based on the preferential etch and deposition of the substrate using a surfactant that forms micelles in solution, sodium chloride, and a gold salt. Applying electric pulses, first, chloride is adsorbed on the surface, then gold is etched away but captured by the surfactant micelles. Finally, it is redeposited on the substrate growing the nanostructures in the process. At the bottom, scanning electron micrographs show the formation of nanostructures and nanopores on the surface throughout the process.
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Institute for Basic Science
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