Janus Plasmonic Silver Nanoplatelets for Interface Stabilization
Janus Plasmonic Silver Nanoplatelets for Interface Stabilization
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DOI：
10.1021/acsanm.8b01141
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发表时间：
2018-10-01
影响因子：
5.9
通讯作者：
Liu, Guoliang
中科院分区：
文献类型：
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作者：
Guo, Yichen;Khan, Assad U.;Liu, Guoliang
Janus等离子体金属纳米颗粒的制备仍然具有挑战性，因为它们对化学蚀刻的敏感性和与高温加工的不相容性。代替使用Pickering乳液和气相沉积的常规方法，本文通过不同的静电吸附方法制造具有两个化学上不同的表面的Janus银纳米片（J-AgNP）。该方法避免了使AgNP降解的腐蚀性化学品和升高的温度。J-AgNPs在稳定乳液和在界面处形成层状纳米结构方面显示出巨大的潜力。这种新方法使等离子体纳米材料的设计在液液和固液界面的胶体稳定。
The preparation of Janus plasmonic metal nanoparticles has remained challenging because of their susceptibility to chemical etching and incompatibility with high-temperature processing. Instead of the conventional methods of using Pickering emulsion and vapor deposition, herein Janus silver nanoplatelets (J-AgNPs) with two chemically distinct surfaces are fabricated via a disparate electrostatic adsorption approach. The approach avoids corrosive chemicals and elevated temperatures that degrade the AgNPs. The J-AgNPs show great potential in stabilizing emulsions and forming layered nanostructures at the interfaces. This novel method enables the design of plasmonic nanomaterials at the liquid liquid and solid liquid interfaces for colloidal stabilization.