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

Andi Di, Jipeng Xu, Thomas Zinn, Michael Sztucki, Wentao Deng, Anumol Ashok, Cheng Lian, Lennart Bergström

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Article in Nano letters, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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8 authors.

Andi DiDepartment of Materials and Environmental Chemistry, Stockholm University, Stockholm 106 91, Sweden.ORCID 0000-0003-4527-2504

Jipeng XuSchool of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China.

Thomas ZinnESRF, The European Synchrotron, 71 Avenue des Martyrs, CS40220,38043 Grenoble Cedex 9, France.

Michael SztuckiESRF, The European Synchrotron, 71 Avenue des Martyrs, CS40220,38043 Grenoble Cedex 9, France.ORCID 0000-0002-5314-9402

Wentao DengCollege of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China.

Anumol AshokDepartment of Materials and Environmental Chemistry, Stockholm University, Stockholm 106 91, Sweden.

Cheng LianSchool of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China.ORCID 0000-0002-9016-832X

Lennart BergströmDepartment of Materials and Environmental Chemistry, Stockholm University, Stockholm 106 91, Sweden.ORCID 0000-0002-5702-0681

Funding

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6 · The paper itself

Abstract

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.

Indexed as

Amphiphilic polyoxometalateCatalysisCo-assemblyOrdered nanostructure

Identifiers

PMID36795963

DOI10.1021/acs.nanolett.2c03068

PMCPMC9999449

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