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首页> 外文期刊>Advanced Functional Materials >Bulk Synthesis and Surface Patterning of Nanoporous Metals and Alloys from Supraspherical Nanoparticle Aggregates
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Bulk Synthesis and Surface Patterning of Nanoporous Metals and Alloys from Supraspherical Nanoparticle Aggregates

机译：超球形纳米颗粒聚集体的纳米孔金属和合金的本体合成和表面构图

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摘要

Supraspheres (SS) composed of hundreds to thousands of metal nanoparticles (NPs) and crbsslinked by dithiol linkers are assembled into larger structures, which are subsequently converted into nanoporous metals (NMs). Conversion is achieved by heating which removes organic molecules stabilizing the NPs and allows for NP fusion. Heating of SS solutions leads to NMs of overall macroscopic dimensions; localized radiation using collimated electron beam is used to prepare metallized surface micropatterns. Depending on the composition of supraspherical precursors, nanoporous materials composed of up to three metals can be obtained. Strategies for controlling pore size and nanoscale surface roughness of these materials are discussed.
机译：由成百上千的金属纳米颗粒（NPs）和通过二硫醇连接基连接的crbss组成的超球（SS）被组装成更大的结构，随后被转换成纳米多孔金属（NMs）。通过加热实现转化，该加热除去稳定NP的有机分子并允许NP融合。 SS溶液的加热导致整个宏观尺寸的NM。使用准直电子束的局部辐射被用于制备金属化的表面微图案。取决于超球形前体的组成，可以获得由多达三种金属组成的纳米多孔材料。讨论了控制这些材料的孔径和纳米级表面粗糙度的策略。

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