Evolution of the Ligand Shell Around Small ZnO Nanoparticles During the Exchange of Acetate by Catechol: A Small Angle Scattering Study

Schindler T, Lin W, Schmutzler T, Lindner P, Peukert W, Segets D, Unruh T (2018)

Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 2018

Journal

ChemNanoMat Wiley

Publisher: Wiley-VCH Verlag

Book Volume: 4

Pages Range: 1-9

DOI: 10.1002/cnma.201800465

Abstract

The core‐shell structure of colloids surrounded by ligands is of great importance for their later application as it can significantly alter the chemical and physical properties of the nanoparticles (NPs). A combination of small angle X‐ray and neutron scattering (SAXS/SANS) in the native solution with additional ex situ measurements (titration‐UV) was applied to study the NP/ligand interface of ZnO NPs after functionalization with catechol derivatives. Based on SAXS data, it was found that within the multimodal particle size distribution the fraction of agglomerates is shifted to smaller sizes and nearly disappeared upon the binding of ethyl 3,4‐dihydroxybenzoate (CAT) molecules. This is ascribed to improved stabilization at the primary particle level by CAT molecules. By combining the neutron scattering contrast with the input of bound CAT molecules from a previously developed titration‐UV method, the heterogeneous composition of the ligand shell became accessible for the first time.

Authors with CRIS profile

Torben Schindler Lehrstuhl für Kristallographie und Strukturphysik (ICSP) Wei Lin Lehrstuhl für Partikelsynthese (LFG) Tilo Schmutzler Professur für Nanomaterialcharakterisierung (Streumethoden) Wolfgang Peukert Lehrstuhl für Partikelsynthese (LFG) Doris Segets Lehrstuhl für Partikelsynthese (LFG) Tobias Unruh Professur für Nanomaterialcharakterisierung (Streumethoden)

Additional Organisation(s)

Graduiertenkolleg 1896/2 In situ Mikroskopie mit Elektronen, Röntgenstrahlen und Rastersonden Interdisziplinäres Zentrum, Center for Nanoanalysis and Electron Microscopy (CENEM)

Involved external institutions

Institute Laue-Langevin (ILL) FR France (FR)

How to cite

APA:

Schindler, T., Lin, W., Schmutzler, T., Lindner, P., Peukert, W., Segets, D., & Unruh, T. (2018). Evolution of the Ligand Shell Around Small ZnO Nanoparticles During the Exchange of Acetate by Catechol: A Small Angle Scattering Study. ChemNanoMat, 4, 1-9. https://doi.org/10.1002/cnma.201800465

MLA:

Schindler, Torben, et al. "Evolution of the Ligand Shell Around Small ZnO Nanoparticles During the Exchange of Acetate by Catechol: A Small Angle Scattering Study." ChemNanoMat 4 (2018): 1-9.

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