Tunable intraparticle frameworks for creating complex heterostructured nanoparticle libraries
Tunable intraparticle frameworks for creating complex heterostructured nanoparticle libraries
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DOI：
10.1126/science.aar5597
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发表时间：
2018-05-04
期刊：
影响因子：
56.9
通讯作者：
Schaak, Raymond E.
中科院分区：
文献类型：
--
作者：
Fenton, Julie L.;Steimle, Benjamin C.;Schaak, Raymond E.
具有精确定义的材料和界面的复杂异质结构纳米颗粒对于许多应用是重要的。然而，合理地将这些功能纳入纳米粒子与严格的形态控制仍然是一个合成瓶颈。我们定义了一个模块化的发散合成策略，逐步将简单的纳米粒子粒子转化为越来越复杂的产品。我们利用阳离子交换反应在零维、一维和二维硫化铜纳米粒子中引入了一系列可调界面。随后操纵这些颗粒内框架产生了47个不同的异质结构的金属硫化物衍生物，包括含有不对称的，片状的，多孔的，和雕刻的纳米结构的颗粒的库。这种可推广的混合匹配策略为复杂的纳米颗粒特征提供了可预测的逆转录合成途径，否则这些特征是无法获得的。
Complex heterostructured nanoparticles with precisely defined materials and interfaces are important for many applications. However, rationally incorporating such features into nanoparticles with rigorous morphology control remains a synthetic bottleneck. We define a modular divergent synthesis strategy that progressively transforms simple nanoparticle synthons into increasingly sophisticated products. We introduce a series of tunable interfaces into zero-, one-, and two- dimensional copper sulfide nanoparticles using cation exchange reactions. Subsequent manipulation of these intraparticle frameworks yielded a library of 47 distinct heterostructured metal sulfide derivatives, including particles that contain asymmetric, patchy, porous, and sculpted nanoarchitectures. This generalizable mix- and- match strategy provides predictable retrosynthetic pathways to complex nanoparticle features that are otherwise inaccessible.