Title |
Ionic liquid-stabilized non-spherical gold nanofluids synthesized using a one-step method
|
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Published in |
Discover Nano, October 2012
|
DOI | 10.1186/1556-276x-7-583 |
Pubmed ID | |
Authors |
Hao Zhang, Hua Cui, Shiwei Yao, Kelong Zhang, Haikun Tao, Haibo Meng |
Abstract |
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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