Tunable Ordered Nanostructured Phases by Co-assembly of Amphiphilic Polyoxometalates and Pluronic Block Copolymers

被引：4

作者：

Di, Andi ^{[1
]}

Xu, Jipeng ^{[2
]}

Zinn, Thomas ^{[3
]}

Sztucki, Michael ^{[3
]}

Deng, Wentao ^{[4
]}

Ashok, Anumol ^{[1
]}

Lian, Cheng ^{[2
]}

Bergstrom, Lennart ^{[1
]}

机构：

[1] Stockholm Univ, Dept Mat & Environm Chem, S-10691 Stockholm, Sweden

[2] East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China

[3] ESRF European Synchrotron, F-38043 Grenoble 9, France

[4] Cent South Univ, Coll Chem & Chem Engn, Changsha 410083, Peoples R China

来源：

NANO LETTERS | 2023年 / 23卷 / 05期

基金：

瑞典研究理事会;

关键词：

Amphiphilic polyoxometalate; Co-assembly; Ordered nanostructure; Catalysis; BUILDING-BLOCKS; NANOPARTICLES; CONSTRUCTION; MANIPULATION; SURFACTANTS; BEHAVIOR; GROWTH;

D O I：

10.1021/acs.nanolett.2c03068

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The assembly of polyoxometalate (POM) metal-oxygen clusters into ordered nanostructures is attracting a growing interest for catalytic and sensing applications. However, assembly of ordered nanostructured POMs from solution can be impaired by aggregation, and the structural diversity is poorly understood. Here, we present a time-resolved small-angle X-ray scattering (SAXS) study of the co assembly in aqueous solutions of amphiphilic organo-functionalized Wells-Dawson-type POMs with a Pluronic block copolymer over a wide concentration range in levitating droplets. SAXS analysis revealed the formation and subsequent transformation with increasing concentration of large vesicles, a lamellar phase, a mixture of two cubic phases that evolved into one dominating cubic phase, and eventually a hexagonal phase formed at concentrations above 110 mM. The structural versatility of co-assembled amphiphilic POMs and Pluronic block copolymers was supported by dissipative particle dynamics simulations and cryo-TEM.

引用

页码：1645 / 1651

页数：7

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