A widely applicable method to stabilize nanoparticles comprising oxygen-rich functional groups

Distaso M, Lautenbach V, Uttinger M, Walter J, Lübbert C, Thajudeen T, Peukert W (2022)

Publication Type: Journal article

Publication year: 2022

Journal

Powder Technology Elsevier

Book Volume: 407

Article Number: 117633

DOI: 10.1016/j.powtec.2022.117633

Abstract

Colloidal stability of nanoparticle suspensions is fundamental to apply nanomaterials in functional devices and to develop new methodologies in nanoscience. Herein, a versatile method is described to disperse and stabilize various solids with technological applications in pharmaceutical industry, batteries and fuel cells, dye sensitized solar cells, pigments and coatings. The method is based on the use of Zr(IV) hydroxo-complexes that interact with carboxylic- and hydroxo- functional groups at the solid-liquid interfaces of active pharmaceutical ingredients (API), carbon black (CB) and Pt-CB, metal oxide and metal oxy-hydroxide nanoparticles. The colloidal stability is assessed via sedimentation analysis, electrophoretic measurements, ultraviolet-visible spectroscopy (UV–Vis), attenuated total reflection-Fourier transform infrared spectroscopy (ATR-FTIR) and isothermal titration calorimetry (ITC). The effect of the anion and pH are studied in depth. Finally, the current work enables liquid phase length and diameter characterization of rod-like goethite (α-FeOOH) particles without relying on tedius counting the particles from electron micrographs.

Authors with CRIS profile

Monica Distaso Lehrstuhl für Feststoff- und Grenzflächenverfahrenstechnik Vanessa Lautenbach Lehrstuhl für Feststoff- und Grenzflächenverfahrenstechnik Maximilian Uttinger Lehrstuhl für Feststoff- und Grenzflächenverfahrenstechnik Johannes Walter Lehrstuhl für Feststoff- und Grenzflächenverfahrenstechnik Christian Lübbert Lehrstuhl für Feststoff- und Grenzflächenverfahrenstechnik Thaseem Thajudeen Lehrstuhl für Feststoff- und Grenzflächenverfahrenstechnik Wolfgang Peukert Lehrstuhl für Feststoff- und Grenzflächenverfahrenstechnik

How to cite

APA:

Distaso, M., Lautenbach, V., Uttinger, M., Walter, J., Lübbert, C., Thajudeen, T., & Peukert, W. (2022). A widely applicable method to stabilize nanoparticles comprising oxygen-rich functional groups. Powder Technology, 407. https://dx.doi.org/10.1016/j.powtec.2022.117633

MLA:

Distaso, Monica, et al. "A widely applicable method to stabilize nanoparticles comprising oxygen-rich functional groups." Powder Technology 407 (2022).

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