A6 – Probing dynamics of supported Pt and Pd catalysts through scale bridging analytical in situ scanning and transmission electron microscopy


The aim of project A6 is to investigate dynamic processes of individual and collective nanoparticle/substrate interactions as a function of synthesis and process conditions, temperature and chemical environment. Complementary to the other electron microscopy projects in the CRC1441, project A6 combines the analytical in situ environmental scanning electron microscopy with transmission electron microscopy and thus expands the scale bridging approach by closing the gap between the nano- and mesoscale. This new methodological concept thus inter-links the collaborative efforts of projects A3, A5, B1 and B3 with those of C3 across different length scales.

Project-related publications by participating researchers

TT.-Prof. Dr.-Ing. Yolita Eggeler

Eggeler, Y. M., Vamsi, K. V., Pollock, T. M.: Precipitate Shearing, Fault Energies, and Solute, Segregation to Planar, Faults in Ni-, CoNi-, and Co-Base Superalloys, Annu. Rev. Mater. Res., 2021, 51, 209–240

DOI: 10.1146/annurev-matsci-102419-011433

Eggeler, Y. M., Kubacka, D., Pichler, P., Wu, M., Spiecker, E.: Intrinsic nano-diffusion-couple for studying high-temperature diffusion in multi-component superalloys, Scripta Materialia, 2021192, 120–124

DOI: 10.1016/j.scriptamat.2020.10.002

Eggeler, Y.M., Mueller, J., Titus, M. S., Suzuki, A., Pollock, T. M., Spiecker, E. (2016). Planar defect formation in the γ′ phase during high temperature creep in single-crystal CoNi-base superalloys, Acta Materialia, 2016113, 335–349

DOI: 10.1016/j.actamat.2016.03.077

Eggeler, Y. M., Titus, M. S., Suzuki, A., Pollock, T. M. (2014). Creep deformation-induced antiphase boundaries in L12-containing single-crystal cobalt-base superalloys, Acta Materialia, 2014, 77, 352–359

DOI: 10.1016/j.actamat.2014.04.037

Eggeler, Y. M., Levin, E. E., Wang, F., Kitchaev, D. A., Van der Ven, A., Seshadri, R., Pollock, T. M., Gianola, D. S. Interfacial structure and strain accommodation in two-phase NbCo1.2Sn Heusler intermetallics, Physical Review Materials2020, 4, 093601

DOI: 10.1103/PhysRevMaterials.4.093601