Ionic liquid-stabilized non-spherical gold nanofluids synthesized using a one-step method

Ionic liquid (IL)-stabilized non-spherical gold nanofluids have been synthesized by a one-step method in aqueous solution. The whole reaction proceeded in room temperature. In the presence of amino-functionalized ionic liquids, gold nanofluids with long-wave surface plasmon resonance (SPR) absorptio...

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Detalles Bibliográficos
Autores principales: Zhang, Hao, Cui, Hua, Yao, Shiwei, Zhang, Kelong, Tao, Haikun, Meng, Haibo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer 2012
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3484079/
https://www.ncbi.nlm.nih.gov/pubmed/23092303
http://dx.doi.org/10.1186/1556-276X-7-583
Descripción
Sumario:Ionic liquid (IL)-stabilized non-spherical gold nanofluids have been synthesized by a one-step method in aqueous solution. The whole reaction proceeded in room temperature. In the presence of amino-functionalized ionic liquids, gold nanofluids with long-wave surface plasmon resonance (SPR) absorption (>600 nm) could be obtained by adopting tannic acid as the reductant. The specific SPR absorption was related to the non-spherical gold nanoparticles including gold triangle, decahedra, and icosahedra nanocrystals. All the nanocrystals were observed by transmission electron microscopy. It was deduced that the formation of non-spherical gold nanofluids was related to the hydroxyls in tannic acid while IL acted as the synthesis template.

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