Surfactant-free room temperature syntheses of stable colloidal silver nanoparticles in alkaline water-alcohol mixtures: pitfalls and opportunities
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Ethylene glycol in quantities as low as 5 vol% in water with only 0.5 mM NaOH rapidly leads at room temperature to silver nanoparticles. The synthesis is best initiated in the dark to lead to surfactant-free colloidal dispersions that are stable for months. Th... ...
