Green chemistry and nanofabrication in a levitated Leidenfrost drop.
Green chemistry and nanofabrication in a levitated Leidenfrost drop.
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DOI:
10.1038/ncomms3400
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发表时间:
2013
影响因子:
16.6
通讯作者:
Elbahri, Mady
中科院分区:
文献类型:
--
作者:
Abdelaziz, Ramzy;Disci-Zayed, Duygu;Hedayati, Mehdi Keshavarz;Poehls, Jan-Hendrik;Zillohu, Ahnaf Usman;Erkartal, Burak;Chakravadhanula, Venkata Sai Kiran;Duppel, Viola;Kienle, Lorenz;Elbahri, Mady
Green nanotechnology focuses on the development of new and sustainable methods of creating nanoparticles, their localized assembly and integration into useful systems and devices in a cost-effective, simple and eco-friendly manner. Here we present our experimental findings on the use of the Leidenfrost drop as an overheated and charged green chemical reactor. Employing a droplet of aqueous solution on hot substrates, this method is capable of fabricating nanoparticles, creating nanoscale coatings on complex objects and designing porous metal in suspension and foam form, all in a levitated Leidenfrost drop. As examples of the potential applications of the Leidenfrost drop, fabrication of nanoporous black gold as a plasmonic wideband superabsorber, and synthesis of superhydrophilic and thermal resistive metal–polymer hybrid foams are demonstrated. We believe that the presented nanofabrication method may be a promising strategy towards the sustainable production of functional nanomaterials. Droplets of water on very hot surfaces form levitating droplets, according to the Leidenfrost effect. Here, the authors show that green chemistry can be performed in these charged droplets, demonstrated by the synthesis of a range of nanoparticles, nanoscale coatings and porous metallic materials.
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