期刊
NANO LETTERS
卷 12, 期 6, 页码 3279-3282出版社
AMER CHEMICAL SOC
DOI: 10.1021/nl3013659
关键词
Clusters; emulsions; nanoparticles; self-assembly; Pickering emulsions
类别
资金
- Deutsche Forschungsgemeinschaft
Noble gas and metal atoms form minimum-energy clusters. Here, we present analogous agglomerates of gold nanoparticles formed in oil-in-water emulsions. We exclude interfacial templating and nucleation-and-growth as formation mechanisms of these supraparticles. Similar to atomic clusters, the supraparticles form when a mobile precursor state can reconfigure until the nanoparticles' interactions with each other and with the liquid-liquid interface are maximized. This formation mechanism is in striking contrast to that previously reported for microparticle clusters.
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