Prof. Dr. Thomas Hocker

Projects

• Exploring Ice Adhesion: Integrating Multiphysics Modelling with Advanced Experimental Techniques / Project leader / completed
• Ceramic air heaters for extreme process temperatures / Team member / completed
• Enhanced blood flow and pressure measurements with PhysioCath-microcatheter for reliable diagnosis of 'Ischemia with Non-Obstructive Coronary Artery' (INOCA) / Project leader / completed
• Fuel Cells HydroGen educatiOnal model for schools / Team member / completed
• Versatile oxide fuel cell microstructures employing WGS active titanate anode current collectors compatible to ferritic stainless steel interconnects / Co-project leader / completed
• Development of series-production readiness of new full ceramic high temperature heating elements for hot air generation / Co-project leader / completed
• Developement of new heating elements for hot air blowers / Co-project leader / completed
• CO2 Reduction & Reuse / Deputy project leader / completed
• Relationships between 3D topology and reaction kinetics in mixed conducting electrodes for solid oxide fuel cells / Team member / completed
• Enhancing the Lifetime of Solid Oxide Fuel Cell stacks in Switzerland / Project leader / completed

Publications

Articles in scientific journal, peer-reviewed

• Marmet, P., Holzer, L., Hocker, T., Boiger, G. K., & Brader, J. M. (2024). Effective transport properties of porous composites applied to MIEC SOC electrodes. Energy Advances, 3(8), 2013–2034. https://doi.org/10.1039/d4ya00074a
• Marmet, P., Holzer, L., Hocker, T., Bausinger, H., Grolig, J. G., Mai, A., Brader, J. M., & Boiger, G. K. (2024). Multiscale-multiphysics model for optimization of novel ceramic MIEC solid oxide fuel cell electrodes. The International Journal of Multiphysics, 18(2s), 58–83. https://doi.org/10.21256/zhaw-30992
• Marmet, P., Holzer, L., Hocker, T., Muser, V., Boiger, G. K., Fingerle, M., Reeb, S., Michel, D., & Brader, J. M. (2023). Stochastic microstructure modeling of SOC electrodes based on a pluri-Gaussian method. Energy Advances, 2(11), 1942–1967. https://doi.org/10.1039/D3YA00332A
• Marmet, P., Holzer, L., Hocker, T., Boiger, G. K., Bausinger, H., Mai, A., Fingerle, M., Reeb, S., Michel, D., & Brader, J. M. (2023). Standardized microstructure characterization of SOC electrodes as a key element for Digital Materials Design. Energy Advances, 2(7), 980–1013. https://doi.org/10.1039/D3YA00132F
• Marmet, P., Holzer, L., Grolig, J. G., Bausinger, H., Mai, A., Brader, J. M., & Hocker, T. (2021). Modeling the impedance response and steady state behaviour of porous CGO-based MIEC anodes. Physical Chemistry Chemical Physics, 23(40), 23042–23074. https://doi.org/10.1039/D1CP01962G
• Wick-Joliat, R., Mauchle, S., Kontic, R., Ehrat, S., Hocker, T., & Penner, D. (2021). MoSi2/Al2O3/feldspar composites for injection‐molded ceramic heating elements. Advanced Engineering Materials, 23(9), 2100517. https://doi.org/10.1002/adem.202100517
• Meier, C., Meier, D., Vandercruysse, F., & Hocker, T. (2018). Lagrangian model using CFD flow data to predict the current-voltage characteristics of a solid oxide fuel cell repeat unit. The International Journal of Multiphysics, 12(4), 393–411. https://doi.org/10.21152/1750-9548.12.4.393
• Linder, M., Hocker, T., Holzer, L., Pecho, O., Friedrich, A., Morawietz, T., Hiesgen, R., Kontic, R., Iwanschitz, B., Mai, A., & Schuler, A. (2015). Ohmic resistance of nickel infiltrated chromium oxide scales in solid oxide fuel cell metallic interconnects. Solid State Ionics, 283, 38–51. https://doi.org/10.1016/j.ssi.2015.11.003
• Pecho, O. M., Mai, A., Münch, B., Hocker, T., Flatt, R. J., & Holzer, L. (2015). 3D microstructure effects in Ni-YSZ anodes : influence of TPB lengths on the electrochemical performance. Materials, 8(10), 7129–7144. https://doi.org/10.3390/ma8105370
• Pecho, O. M., Stenzel, O., Iwanschitz, B., Gasser, P., Neumann, M., Schmidt, V., Prestat, M., Hocker, T., Flatt, R. J., & Holzer, L. (2015). 3D microstructure effects in Ni-YSZ anodes : prediction of effective transport properties and optimization of redox stability. Materials, 8(9), 5554–5585. https://doi.org/10.3390/ma8095265
• Linder, M., Hocker, T., Meier, C., Holzer, L., Friedrich, A., Iwanschitz, B., Mai, A., & Schuler, A. J. (2015). A model-based approach for current voltage analyses to quantify degradation and fuel distribution in solid oxide fuel cell stacks. Journal of Power Sources, 288, 409–418. https://doi.org/10.1016/j.jpowsour.2015.04.136
• Pecho, O., Holzer, L., Yáng, Z., Martynczuk, J., Hocker, T., Flatt, R. J., & Prestat, M. (2015). Influence of strontium-rich pore-filling phase on the performance of La0.6Sr0.4CoO3−δ thin-film cathodes. Journal of Power Sources, 274, 295–303. https://doi.org/10.1016/j.jpowsour.2014.10.060
• Safa, Y., & Hocker, T. (2015). A validated energy approach for the post-buckling design of micro-fabricated thin film devices. Applied Mathematical Modelling, 39(2), 483–499. https://doi.org/10.1016/j.apm.2014.05.038
• Linder, M., Hocker, T., Holzer, L., Friedrich, K. A., Iwanschitz, B., Mai, A., & Schuler, J. A. (2014). Model-based prediction of the ohmic resistance of metallic interconnects from oxide scale growth based on scanning electron microscopy. Journal of Power Sources, 272, 595–605. https://doi.org/10.1016/j.jpowsour.2014.08.098
• Safa, Y., Hocker, T., Prestat, M., & Evans, A. (2014). Post-buckling design of thin-film electrolytes in micro-solid oxide fuel cells. Journal of Power Sources, 250, 332–342. https://doi.org/10.1016/j.jpowsour.2013.10.125
• Gaiselmann, G., Neumann, M., Schmidt, V., Pecho, O., Hocker, T., & Holzer, L. (2014). Quantitative relationships between microstructure and effective transport properties based on virtual materials testing. AIChE Journal, 60(6), 1983–1999. https://doi.org/10.1002/aic.14416
• Holzer, L., Iwanschitz, B., Hocker, T., Keller, L., Pecho, O., Sartoris, G., Gasser, P., & Muench, B. (2013). Redox cycling of Ni-YSZ anodes for solid oxide fuel cells: influence of tortuosity, constriction and percolation factors on the effective transport properties. Journal of Power Sources, 242, 179–194. https://doi.org/10.1016/j.jpowsour.2013.05.047
• Linder, M., Hocker, T., Holzer, L., Friedrich, K. A., Iwanschitz, B., Mai, A., & Schuler, J. A. (2013). Cr2O3 scale growth rates on metallic interconnectors derived from 40,000 h solid oxide fuel cell stack operation. Journal of Power Sources, 243, 508–518. https://doi.org/10.1016/j.jpowsour.2013.05.200
• Gaiselmann, G., Neumann, M., Holzer, L., Hocker, T., Prestat, M. R., & Schmidt, V. (2013). Stochastic 3D modeling of La0.6Sr0.4CoO3−δ cathodes based on structural segmentation of FIB–SEM images. Computational Materials Science, 67, 48–62. https://doi.org/10.1016/j.commatsci.2012.08.030
• Meier, C., Hocker, T., Bieberle-Hütter, A., & Gauckler, L. J. (2012). Analyzing a micro-solid oxide fuel cell system by global energy balances. International Journal of Hydrogen Energy, 37(13), 10318–10327. https://doi.org/10.1016/j.ijhydene.2012.04.009
• Nakajo, A., Kuebler, J., Faes, A., Vogt, U. F., Schindler, H. J., Chiang, L.-K., Modena, S., Van herle, J., & Hocker, T. (2012). Compilation of mechanical properties for the structural analysis of solid oxide fuel cell stacks : constitutive materials of anode-supported cells. Ceramics International, 38(5), 3907–3927. https://doi.org/10.1016/j.ceramint.2012.01.043
• Evans, A., Prestat, M., Tölke, R., Schlupp, M. V. F., Gauckler, L. J., Safa, Y., Hocker, T., Courbat, J., Briand, D., de Rooij, N. F., & Courty, D. (2012). Residual stress and buckling patterns of free-standing yttria-stabilized-zirconia membranes fabricated by pulsed laser deposition. Fuel Cells, 12(4), 614–623. https://doi.org/10.1002/fuce.201200028
• Holzer, L., Münch, B., Iwanschitz, B., Cantoni, M., Hocker, T., & Graule, T. (2011). Quantitative relationships between composition, particle size, triple phase boundary length and surface area in nickel-cermet anodes for solid oxide fuel cells. Journal of Power Sources, 196(17), 7076–7089. https://doi.org/10.1016/j.jpowsour.2010.08.006
• Holzer, L., Iwanschitz, B., Hocker, T., Münch, B., Prestat, M., Wiedenmann, D., Vogt, U., Holtappels, P., Sfeir, J., Mai, A., & Graule, T. (2011). Microstructure degradation of cermet anodes for solid oxide fuel cells : quantification of nickel grain growth in dry and in humid atmospheres. Journal of Power Sources, 196(3), 1279–1294. https://doi.org/10.1016/j.jpowsour.2010.08.017
• Kuebler, J., Vogt, U. F., Haberstock, D., Sfeir, J., Mai, A., Hocker, T., Roos, M., & Harnisch, U. (2010). Simulation and validation of thermo-mechanical stresses in planar SOFCs. Fuel Cells, 10(6), 1066–1073. https://doi.org/10.1002/fuce.201000040
• Bieberle-Hütter, A., Beckel, D., Infortuna, A., Muecke, U. P., Rupp, J. L. M., Gauckler, L. J., Rey-Mermet, S., Muralt, P., Bieri, N. R., Hotz, N., Stutz, M. J., Poulikakos, D., Heeb, P., Müller, P., Bernard, A., Gmür, R., & Hocker, T. (2008). A micro-solid oxide fuel cell system as battery replacement. Journal of Power Sources, 177(1), 123–130. https://doi.org/10.1016/j.jpowsour.2007.10.092
• Gmür, R., Goschnick, J., Hocker, T., Schwarzenbach, H., & Sommer, M. (2007). Impact of sensor packaging on analytical performance and power consumption of metal oxide based gas sensor microarrays. Sensors and Actuators B: Chemical, 127(1), 107–111. https://doi.org/10.1016/j.snb.2007.07.139
• Worlitschek, J., Hocker, T., & Mazzotti, M. (2005). Restoration of PSD from chord length distribution data using the method of projections onto convex sets. Particle & Particle Systems Characterization, 22(2), 81–98. https://doi.org/10.1002/ppsc.200400872
• Hocker, T., Rajendran, A., & Mazzotti, M. (2003). Measuring and modeling supercritical adsorption in porous solids : carbon dioxide on 13X zeolite and on silica gel. Langmuir, 19(4), 1254–1267. https://doi.org/10.1021/la0266379
• Roos, M., Batawi, E., Harnisch, U., & Hocker, T. (2003). Efficient simulation of fuel cell stacks with the volume averaging method. Journal of Power Sources, 118(1–2), 86–95. https://doi.org/10.1016/S0378-7753(03)00066-1
• Rajendran, A., Hocker, T., Di Giovanni, O., & Mazzotti, M. (2002). Experimental observation of critical depletion : nitrous oxide adsorption on silica gel. Langmuir, 18(25), 9726–9734. https://doi.org/10.1021/la025696j
• Hocker, T., Aranovich, G. L., & Donohue, M. D. (2001). Adsorption-energy distribution of heterogeneous surfaces predicted by projections onto convex sets. Journal of Colloid and Interface Science, 238(1), 167–176. https://doi.org/10.1006/jcis.2001.7496
• Hocker, T., & Donohue, M. D. (2001). A simple model for solute partitioning and adsorption. Journal of Colloid and Interface Science, 244(1), 9–17. https://doi.org/10.1006/jcis.2001.7914
• Hocker, T., Aranovich, G. L., & Donohue, M. D. (1999). Monolayer adsorption of nonrandom mixtures. The Journal of Chemical Physics, 111(3), 1240–1254. https://doi.org/10.1063/1.479309
• Hocker, T., Aranovich, G. L., & Donohue, M. D. (1999). Monolayer adsorption for the subcritical lattice gas and partially miscible binary mixtures. Journal of Colloid and Interface Science, 211(1), 61–80. https://doi.org/10.1006/jcis.1998.5971
• Aranovich, G. L., Hocker, T., Wu, D. W., & Donohue, M. D. (1997). Nonrandom behavior in multicomponent lattice mixtures : effects of solute size and shape. The Journal of Chemical Physics, 106(24), 10282–10291. https://doi.org/10.1063/1.474065

Written conference contributions, peer-reviewed

• Marmet, P., Hocker, T., Boiger, G. K., Grolig, J. G., Bausinger, H., Mai, A., Fingerle, M., Reeb, S., Brader, J. M., & Holzer, L. (2022, July 5). Composite conductivity of MIEC-based SOFC anodes : implications for microstructure optimization. 15th European SOFC & SOE Forum 2022, Lucerne, Switzerland, 5-8 July 2022. https://doi.org/10.21256/zhaw-26055
• Marmet, P., Hocker, T., Grolig, J. G., Bausinger, H., Mai, A., Brader, J. M., & Holzer, L. (2020, October 20). Towards model-based optimization of CGO/Ni anodes. 14th European SOFC & SOE Forum, Lucerne, Switzerland (Online), 20-23 October 2020. https://doi.org/10.5281/zenodo.4556898
• Knaack, R., Wickert, J., Volz, D., Münchbach, N., Eich, W., Hug, P., & Hocker, T. (2019). Einsatz von “Virtual Reality” in der Ausbildung von Ingenieurinnen und Ingenieuren [Conference paper]. In B. Meissner, C. Walter, B. Zinger, J. Haubner, & F. Waldherr (eds.), Tagungsband zum 4. Symposium zur Hochschullehre in den MINT-Fächern (pp. 176–183). Technische Hochschule Nürnberg. https://www.didaktikzentrum.de/images/cwattachments/491_f1d8d1209f6ebde9058713d97ebf9d29.pdf

Other publications

• Evans, A., Prestat, M., Tölke, R., Gauckler, L. J., Hocker, T., Safa, Y., Briand, D., Courbat, J., & De Rooij, N. (2012). Residual stress and buckling patterns of yttria-stabilised-zirconia thin films for micro-solid oxide fuel cell membranes [Conference paper]. In M. B. Mogensen, T. Armstrong, T. M. Gür, H. Yokokawa, & X.-D. Zhou (Eds.), Ionic and mixed conducting ceramics (Vol. 8, pp. 475–479). The Electrochemical Society. https://doi.org/10.1149/1.3701338
• Linder, M., Hocker, T., Denzler, R., Mai, A., & Iwanschitz, B. (2011). Automated, model-based analysis of Uj-data for electrolyte-supported SOFC short-stacks [Conference paper]. 7th Symposium on Fuel Cell Modeling and Experimental Validation, Morges, 23-24 March 2010, 11, 573–580. https://doi.org/10.1002/fuce.201000132
• Safa, Y., & Hocker, T. (2009). Numerical simulation of reactive transport phenomena in the hexis SOFC-system [Conference paper]. In S. C. Singhal & H. Yokokawa (Eds.), Solid Oxide Fuel Cells 11 (SOFC-XI) (Vol. 25, pp. 1221–1230). https://doi.org/10.1149/1.3205651
• Hocker, T., & Heinzelmann, E. (2004). FE-Modellierung von Brennstoffzellen. Technische Rundschau, 2004(5), 22.
• Hocker, T., Sartoris, G., Ruhstaller, B., Haller, T., & Schwarzenbach, H. (2003). Mikro- und Nanotechnologie am Center for Computational Physics. ZHWInfo, 17.
• Di Giovanni, O., Hocker, T., Rajendran, A., Dörfler, W., Mazzotti, M., & Morbidelli, M. (2002). Measuring and describing adsorption under supercritical conditions [Conference paper]. In K. Kaneko, H. Kanoh, Y. Hanzawa, & International Adsorption Society (Eds.), Fundamentals of Adsorption 7 : Proceedings of the 7th International Conference on Fundamentals of Asorption, Nagasaki, 20–25 May, 2001 (pp. 672–679). IK International.
• Hocker, T., Aranovich, G. L., & Donohue, M. D. (1997). Energy and entropy of mixing for a nonrandom mixture of monomers. In H. Stuchtrup (Ed.), Facetten der Thermodynamik : Festschrift zum 60. Geburtstag von Professor Ingo Müller. Technische Universität Berlin.

Oral conference contributions and abstracts

• Marmet, P., Holzer, L., Hocker, T., & Boiger, G. K. (2024, April 11). Modellbasierte Entwicklung von Elektroden für Festoxid-Brennstoffzellen. VPE/PLM Swiss Symposium, OST – Ostschweizer Fachhochschule, Rapperswil, Schweiz, 11. April 2024.
• Marmet, P., Holzer, L., Hocker, T., & Boiger, G. K. (2023, December 15). Multiscale-multiphysics model for novel ceramic solid oxide fuel cell electrodes. 18th International Conference of Multiphysics, Graz, Austria, 14-15 December 2023.
• Marmet, P., Holzer, L., Hocker, T., Boiger, G. K., Hilden, J., Reeb, S., & Fingerle, M. (2021). Generation of virtual three-phase structures based on Gaussian random fields : an important option for Digital Materials Design of solid oxide fuel cell electrodes [Conference presentation]. GeoDict User Meeting 2021 Book of Abstracts, 22. https://www.math2market.de/fileadmin/CONTENT_files/News/Events/GeoDict_UserMeeting-and-Workshops/2021-GeoDict-UserMeeting/2021_Book-of-Abstracts.pdf
• Marmet, P., Holzer, L., Grolig, J. G., Mai, A., Brader, J. M., & Hocker, T. (2021, April 20). Comprehensive model for CGO based anodes. 17th Symposium on Modeling and Experimental Validation of Fuel Cells, Electrolysers and Batteries (ModVal), Online, 20-22 April 2021.
• Hocker, T., Safa, Y., & Meier, D. C. (2016). Kontrolliertes Kühlen von Kakaobutter und Modellierung der Kristallisation von Kakaobutter. Choco Tec 2016 - der Schokoladenkongress des Jahres, Köln, Deutschland, 6-8 December 2016.
• Safa, Y., & Hocker, T. (2016). Developed numerical approach of the melt-crystals phase-changing kinetics in solidification process. 11th International Conference of Multiphysics, Winterthur, 8-9 December 2016.
• Prestat, M. R., Evans, A., Tölke, R., Schlupp, M. V. F., Scherrer, B., Yáng, Z., Martynczuk, J., Pecho, O., Ma, H., Laffranchini, S., Bieberle-Hütter, A., Gauckler, L. J., Safa, Y., Hocker, T., Muralt, P., Yan, Y., Courbat, J., Briand, D., & de Rooij, N. F. (2012). Miniaturized free-standing SOFC membranes on silicon chips (A0704). 10th European SOFC Forum 2012, Lucerne, Switzerland, 26–29 June 2012.
• Safa, Y., & Hocker, T. (2012, April). A validated model of membrane mechanics for micro SOFC. 9th Symposium on Fuel Cell and Battery Modeling and Experimental Validation (ModVal 9), Sursee, 2.-4. April 2012.
• Hocker, T., Niffenegger, M., Safa, Y., & Chahine, E. (2011). Buckling-driven crack growth in elastic plate devices. 21. Symposium Simulationstechnik (ASIM 2011), Winterthur, Schweiz, 7.–9. September 2011.
• Safa, Y., & Hocker, T. (2011, March). A new model for detailed simulation of multiple transport and conversion processes in SOFC stack repeat units. 8th Symposium on Fuel Cell Modeling and Experimental Validation (ModVal8), Bonn, Germany, 8-9 March 2011.

Research data

• Marmet, Philip; Holzer, Lorenz; Hocker, Thomas; Muser, Vinzenz; Boiger, Gernot K.; Fingerle, Mathias; Reeb, Sarah; Michel, Dominik; Brader, Joseph M., 2023. Python app for stochastic microstructure modeling of SOC electrodes based on a pluri-Gaussian method. Zenodo. Available from: https://doi.org/10.5281/zenodo.7744110
• Marmet, Philip; Holzer, Lorenz; Hocker, Thomas; Boiger, Gernot K.; Bausinger, Holger; Mai, Andreas; Fingerle, Mathias; Reeb, Sarah; Michel, Dominik; Brader, Joseph M., 2023. Characterization-app : standardized microstructure characterization of SOC electrodes as a key element for Digital Materials Design. Zenodo. Available from: https://doi.org/10.5281/zenodo.7741305

Patents and patent applications

• Boiger, Gernot Kurt; Boldrini, Marlon; Gorbar, Michal; de Hazan, Yoram; Hocker, Thomas; Horat-Fässler, Pascal; Mauchle, Stéphane; Penner, Dirk; von Wyl, Bruno,

  2019.

  Keramischer Heizwiderstand, elektrisches Heizelement sowie Vorrichtung zur Erwärmung eines Fluides.

  Patent number WO2019185291 A1

  (2019-10-03)

  .

  Available from: https://worldwide.espacenet.com/patent/search?q=pn%3DWO2019185291A1

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