Using nanoporous gold instead of flat gold can increase the available surface area for binding, allowing for the attachment of more molecules to the metal surface than flat gold. We have attached 1-ethynyl-4-nitrobenzene and 4-ethynylaniline to nanoporous gold under varying temperature and atmospheric conditions, as well as differing lengths of time. We analyzed the results using infrared reflection absorption spectroscopy, cyclic voltammetry, and X-ray photoelectron spectroscopy to identify binding success. Cyclic voltammetry was used to determine the density of the molecular layer using ferricyanide as a solution redox couple. Temperature and atmosphere were found to have significant effects on coverage, with the best results being at higher temperature and in a nitrogen atmosphere.

Attachment and ordering of alkyne self-assembled monolayers on nanoporous gold surfaces

2019 Spring National Meeting

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