In Situ SAXS Measurement and Molecular Dynamics Simulation of Magnetic Alignment of Hexagonal LLC Nanostructures

Cong, Weiwei; Gao, Weimin; Garvey, Christopher J.; Dumée, Ludovic F.; Zhang, Juan; Kent, Ben; Wang, Guang; She, Fenghua; Kong, Lingxue

doi:10.3390/membranes8040123

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In Situ SAXS Measurement and Molecular Dynamics Simulation of Magnetic Alignment of Hexagonal LLC Nanostructures

Weiwei Cong

¹,

Weimin Gao

^1,2,

Christopher J. Garvey

³,

¹,

⁴,

¹ and

^1,*

Institute for Frontier Materials, Deakin University, Geelong, Locked Bag 20000, Geelong, VIC 3220, Australia

College of Metallurgy and Energy, North China University of Science and Technology, Tangshan 063009, China

Australian Nuclear Science and Technology Organisation, Locked Bag 2001, Kirrawee DC, NSW 2232, Australia

⁴

Institute for Soft Matter and Functional Materials, Helmholtz Zentrum Berlin, Hahn-Meitner-Platz 1, D-14109 Berlin, Germany

Author to whom correspondence should be addressed.

Membranes 2018, 8(4), 123; https://doi.org/10.3390/membranes8040123

Received: 5 October 2018 / Revised: 8 November 2018 / Accepted: 27 November 2018 / Published: 2 December 2018

(This article belongs to the Special Issue Nanostructured Membranes)

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Abstract

The alignment of nanostructures in materials such as lyotropic liquid crystal (LLC) templated materials has the potential to significantly improve their performances. However, accurately characterising and quantifying the alignment of such fine structures remains very challenging. In situ small angle X-ray scattering (SAXS) and molecular dynamics were employed for the first time to understand the hexagonal LLC alignment process with magnetic nanoparticles under a magnetic field. The enhanced alignment has been illustrated from the distribution of azimuthal intensity in the samples exposed to magnetic field. Molecular dynamics simulations reveal the relationship between the imposed force of the magnetic nanoparticles under magnetic field and the force transferred to the LLC cylinders which leads to the LLC alignment. The combinational study with experimental measurement and computational simulation will enable the development and control of nanostructures in novel materials for various applications. View Full-Text

Keywords: alignment; magnetic field; hexagonal; lyotropic liquid crystals; nanofiltration; in situ small angle X-ray scattering (SAXS)

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MDPI and ACS Style

Cong, W.; Gao, W.; Garvey, C.J.; Dumée, L.F.; Zhang, J.; Kent, B.; Wang, G.; She, F.; Kong, L. In Situ SAXS Measurement and Molecular Dynamics Simulation of Magnetic Alignment of Hexagonal LLC Nanostructures. Membranes 2018, 8, 123. https://doi.org/10.3390/membranes8040123

AMA Style

Cong W, Gao W, Garvey CJ, Dumée LF, Zhang J, Kent B, Wang G, She F, Kong L. In Situ SAXS Measurement and Molecular Dynamics Simulation of Magnetic Alignment of Hexagonal LLC Nanostructures. Membranes. 2018; 8(4):123. https://doi.org/10.3390/membranes8040123

Chicago/Turabian Style

Cong, Weiwei, Weimin Gao, Christopher J. Garvey, Ludovic F. Dumée, Juan Zhang, Ben Kent, Guang Wang, Fenghua She, and Lingxue Kong. 2018. "In Situ SAXS Measurement and Molecular Dynamics Simulation of Magnetic Alignment of Hexagonal LLC Nanostructures" Membranes 8, no. 4: 123. https://doi.org/10.3390/membranes8040123

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In Situ SAXS Measurement and Molecular Dynamics Simulation of Magnetic Alignment of Hexagonal LLC Nanostructures

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