A1 Functional Particle Systems


Organisation:
Exzellenz-Cluster Engineering of Advanced Materials

FAU Contact:
Peukert, Wolfgang Prof. Dr.-Ing.

Description:

Innovative methods for particle formation, formulation and characterization


Development of tailored metallic, semiconducting or insulating particles using highly optimized bottom-up or top-down processes


Properties of particulate systems can be tailored for size, shape,
morphology and surface, and their respective distributions. Tailoring
the related formulation techniques (for example, stabilization,
dispersion, suspension rheology, separation/classification, granulation)
is inadequately understood but of utmost importance to
particulate-based nanotechnology. The integration of the building blocks
by tailoring their microscopic interactions into meso- and macro-scale
structures defines to a large extent the multifunctional properties of
the devices (product engineering). The following processes and
technologies are developed:

  • New methods
    for shape- and size-controlled particle formation, including structured
    particles by spray pyrolysis for catalytic and photonic applications
    (the droplet as a microreactor), oxidation-stabilized metallic and
    non-oxide nanoparticles, shape control by template-based methods (for
    example, in ionic liquids, liquid crystalline phases and emulsions) and
    nano-milling
  • Scale-up and optimization of these methods
  • Separation and classification techniques for nanoparticles based on careful control of particle interactions
  • Tailoring structure formation processes by means of microscopic control of the particulate interfaces
  • In-line analysis techniques for particle size (e.g. SAXS) and particle interactions (e.g. non-linear optics)



Assigned publications

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Haderlein, M., Güldenpfennig, A., Segets, D., & Peukert, W. (2017). A widely applicable tool for modeling precipitation processes. Computers & Chemical Engineering, 98, 197-208. https://dx.doi.org/10.1016/j.compchemeng.2016.12.007
Schindler, T., Schmutzler, T., Schmiele, M., Lin, W., Segets, D., Peukert, W.,... Unruh, T. (2017). Changes within the stabilizing layer of ZnO nanoparticles upon washing. Journal of Colloid and Interface Science, 504, 356-362. https://dx.doi.org/10.1016/j.jcis.2017.05.059
Pfau, M., Kunzmann, A., Segets, D., Peukert, W., Wallace, G.G., Officer, D.L.,... Guldi, D.M. (2017). Choosing the right nanoparticle size-designing novel ZnO electrode architectures for efficient dye-sensitized solar cells. Journal of Materials Chemistry A, 5(16), 7516-7522. https://dx.doi.org/10.1039/c6ta11012f
Akdas, T., Haderlein, M., Walter, J., Apeleo Zubiri, B., Spiecker, E., & Peukert, W. (2017). Continuous synthesis of CuInS2 quantum dots. RSC Advances, 7(17), 10057-10063. https://dx.doi.org/10.1039/c6ra27052b
Ahmad, R., Nicholson, K.S., Nawaz, Q., Peukert, W., & Distaso, M. (2017). Correlation between product purity and process parameters for the synthesis of Cu2ZnSnS4 nanoparticles using microwave irradiation. Journal of Nanoparticle Research, 19(7). https://dx.doi.org/10.1007/s11051-017-3932-5
Thajudeen, T., Walter, J., Srikantharajah, R., Lübbert, C., & Peukert, W. (2017). Determination of the length and diameter of nanorods by a combination of analytical ultracentrifugation and scanning mobility particle sizer. Nanoscale Horizons, 2(5), 253-260. https://dx.doi.org/10.1039/c7nh00050b
Schikarski, T., Peukert, W., & Avila, M. (2017). Direct numerical simulation of water–ethanol flows in a T-mixer. Chemical Engineering Journal, 324, 168-181. https://dx.doi.org/10.1016/j.cej.2017.04.119
Ramos Rivera, L., Distaso, M., Peukert, W., & Boccaccini, A.R. (2017). Electrophoretic deposition of anisotropic α-Fe2O3/PVP/chitosan nanocomposites for biomedical applications. Materials Letters, 200, 83-86. https://dx.doi.org/10.1016/j.matlet.2017.04.073
Weichsel, U., Segets, D., Thajudeen, T., Maier, E.-M., & Peukert, W. (2017). Enhanced Crystallization of Lysozyme Mediated by the Aggregation of Inorganic Seed Particles. Crystal Growth and Design, 17(3), 967-981. https://dx.doi.org/10.1021/acs.cgd.6b01026
Taccardi, N., Grabau, M., Debuschewitz, J., Distaso, M., Brandl, M., Hock, R.,... Wasserscheid, P. (2017). Gallium-rich Pd-Ga phases as supported liquid metal catalysts. Nature chemistry, 9(9), 862-867. https://dx.doi.org/10.1038/nchem.2822

Last updated on 2019-26-03 at 16:11