Linking experiment and theory for three-dimensional networked binary metal nanoparticle-triblock terpolymer superstructures
Linking experiment and theory for three-dimensional networked binary metal nanoparticle-triblock terpolymer superstructures
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DOI：
10.1038/ncomms4247
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发表时间：
2014-02-01
影响因子：
16.6
通讯作者：
Wiesner, Ulrich
中科院分区：
文献类型：
--
作者：
Li, Zihui;Hur, Kahyun;Wiesner, Ulrich
通过自组装控制三维二元纳米颗粒混合物的超结构为设计具有独特性能的材料提供了巨大的机会。在这里，我们报告如何密切耦合的合成，深入的电子断层扫描表征和理论，使精细控制的超结构在高度有序的多孔三维连续网络从单一和二元混合物的金属纳米粒子与三嵌段聚合物。合成了聚（异戊二烯-嵌段-苯乙烯-嵌段-甲基丙烯酸（N，N-二甲基氨基）乙酯），并用作配体稳定的铂和金纳米颗粒的结构导向剂。定量分析提供了对短距离和长距离纳米粒子-纳米粒子相关性的见解，以及对网络中结构手性的局部和全局贡献。结果提供了合成标准的下一代介孔网络超结构的二元纳米粒子混合物的潜在应用领域，包括催化。
Controlling superstructure of binary nanoparticle mixtures in three dimensions from self-assembly opens enormous opportunities for the design of materials with unique properties. Here we report on how the intimate coupling of synthesis, in-depth electron tomographic characterization and theory enables exquisite control of superstructure in highly ordered porous three-dimensional continuous networks from single and binary mixtures of metal nanoparticles with a triblock terpolymer. Poly(isoprene-block-styrene-block-(N, N-dimethylamino) ethyl methacrylate) is synthesized and used as structure-directing agent for ligand-stabilized platinum and gold nanoparticles. Quantitative analysis provides insights into short-and long-range nanoparticle-nanoparticle correlations, and local and global contributions to structural chirality in the networks. Results provide synthesis criteria for next-generation mesoporous network superstructures from binary nanoparticle mixtures for potential applications in areas including catalysis.