Aerosol synthesis of cargo-filled graphene nanosacks.

Aerosol synthesis of cargo-filled graphene nanosacks.
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DOI:
10.1021/nl2045952
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发表时间:
2012-04-11
期刊:
影响因子:
10.8
通讯作者:
Hurt RH
Hurt RH
中科院分区:
材料科学1区
文献类型:
--
作者:
Chen Y;Guo F;Jachak A;Kim SP;Datta D;Liu J;Kulaots I;Vaslet C;Jang HD;Huang J;Kane A;Shenoy VB;Hurt RH

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含有氧化石墨烯和第二溶质的水微滴显示在干燥时自发地分离成袋状货物纳米结构。分析模型和分子动力学表明,当缓慢扩散的氧化石墨烯优先在后退的空气-水界面处积累和吸附时,形成袋状结构,随后是毛细管崩溃。填充货物的石墨烯纳米袋可以通过简单、连续、可扩展的工艺进行纳米制造,并且对于纳米级材料应该与环境或生物组织隔离的许多应用来说是有希望的。
Water microdroplets containing graphene oxide and a second solute are shown to spontaneously segregate into sack-cargo nanostructures upon drying. Analytical modelling and molecular dynamics suggest the sacks form when slow-diffusing graphene oxide preferentially accumulates and adsorbs at the receding air-water interface, followed by capillary collapse. Cargo-filled graphene nanosacks can be nanomanufactured by a simple, continuous, scalable process and are promising for many applications where nanoscale materials should be isolated from the environment or biological tissue.
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