Sodium borohydride reduction of silver ions in aqueous dispersions of exfoliated graphite oxide (GO) resulted in the formation of remarkably monodisperse 100 Å diameter oblate Ag particles that are effectively protected by 5 Å thick GO sheets, Ag−GO. Ag−GO could be self-assembled onto poly(diallyldimethylammonium) chloride, PDDA, coated substrate; subsequent layer-by-layer self-assembly of Ag−GO and PDDA led to well-ordered ultrathin films of S-(PDDA/Ag−GO) n .
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Cassagneau et al. (1999) studied this question.
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