Plastic and moldable metals by self-assembly of sticky nanoparticle aggregates
Plastic and moldable metals by self-assembly of sticky nanoparticle aggregates
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DOI：
10.1126/science.1139131
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发表时间：
2007-04-13
期刊：
影响因子：
56.9
通讯作者：
Grzybowski, Bartosz A.
中科院分区：
文献类型：
--
作者：
Klajn, Rafal;Bishop, Kyle J. M.;Grzybowski, Bartosz A.
由长链二硫醇配体连接的可变形的球形金属纳米颗粒自组装成宏观尺寸的纳米结构材料。这些材料是塑料的，可以在任意形状的母材上注塑，并可以热硬化成孔隙率可控的多晶金属结构。此外，在塑料和硬化状态下，组件都是导电的，表现出低至每米20伏的欧姆特性。导致这种材料的自组装方法既适用于纯金属，也适用于各种元素组成的双金属结构。
Deformable, spherical aggregates of metal nanoparticles connected by long-chain dithiol ligands self-assemble into nanostructured materials of macroscopic dimensions. These materials are plastic and moldable against arbitrarily shaped masters and can be thermally hardened into polycrystalline metal structures of controllable porosity. In addition, in both plastic and hardened states, the assemblies are electrically conductive and exhibit Ohmic characteristics down to similar to 20 volts per meter. The self-assembly method leading to such materials is applicable both to pure metals and to bimetallic structures of various elemental compositions.