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

Journal article
(Original article)


Publication Details

Author(s): Schindler T, Lin W, Schmutzler T, Lindner P, Peukert W, Segets D, Unruh T
Journal: ChemNanoMat
Publisher: Wiley-VCH Verlag
Publication year: 2018
Volume: 4
Pages range: 1-9
ISSN: 2199-692X


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.


FAU Authors / FAU Editors

Lin, Wei
Lehrstuhl für Feststoff- und Grenzflächenverfahrenstechnik
Lehrstuhl für Feststoff- und Grenzflächenverfahrenstechnik
Peukert, Wolfgang Prof. Dr.-Ing.
Schindler, Torben
Lehrstuhl für Kristallographie und Strukturphysik
Schmutzler, Tilo
Professur für Nanomaterialcharakterisierung (Streumethoden)
Segets, Doris Dr.-Ing.
Lehrstuhl für Feststoff- und Grenzflächenverfahrenstechnik
Unruh, Tobias Prof. Dr.
Professur für Nanomaterialcharakterisierung (Streumethoden)


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


External institutions with authors

Institute Laue-Langevin (ILL)


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://dx.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.

BibTeX: 

Last updated on 2019-28-05 at 08:34