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Electrochemistry

Protons on tap

Electrochemistry has so far been mostly centred around measuring factors and coefficients. Through the reversible reduction and oxidation of an electrode coating formed from three-dimensional hybrid aniline–gold nanoparticles, it has now moved on to controlling the pH of a solution, thus triggering specific reactions.

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Figure 1: Control by electrochemistry of a solution's composition near a gold electrode.

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Penner, R. Protons on tap. Nature Chem 2, 251–252 (2010). https://doi.org/10.1038/nchem.606

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