Education
Research Interests: Electrochemical Engineering, Microfluidics & Transport Phenomena, Electrokinetic Phenomena, Interface Phenomena, Supercapacitors & Batteries.
Research Expertise:Dominik Barz has academic and professional experience in areas encompassing various subjects. He started his career working as a laboratory engineer focussing on the development of polymer electrolyte fuel cells and other electrochemical systems. Thereafter, his interests have been focused on the advancement of Lab-on-a-Chip Technologies including research on Microfluidics and Transport & Interface Phenomena. Currently, the group’s research focusses on electrochemical and materials engineering; especially electrochemical energy storage devices such as supercapacitors and batteries with an emphasis on their hybridization. Here, different fabrication methods such as printing and self-assembly are used.
While the research often targets technologies suitable for real world applications, the group also incorporates the study of fundamental problems by using a combination of experiments and mathematical modeling and numerical simulations.
J39 H. Dang and D.P.J. Barz*: Graphene electrode functionalization for high performance hybrid energy storage with vanadyl sulfate redox electrolytes, J. Power Sources, 517 (2022), p.230712-230723, IF(2021):9.79.
J38 S. Mypati, A. Khazaeli, and D.P.J. Barz*: A Novel Rechargeable Zinc-Copper Battery Without a Separator, J. Energy Storage 42 (2021), p.103109-103120 IF(2021):8.91
J37 S. Mypati, A. Sellathurai, M. Kontopoulou, A. Docoslis, and D.P.J. Barz*: “High Concentration Graphene Nanoplatelet Dispersions in Water stabilized by Graphene Oxide”, Carbon 174 (2021), p. 581-593.IF(2021):11.31
J36 M. Khademi, S. Cheng and D.P.J. Barz*: “Charge and Electrical Double Layer Formation in a Nonpolar Solvent Using a Nonionic Surfactant, Langmuir 36 (2020), p. 5156 - 5164, IF(2020):3.88
J35 M. Khademi and D.P.J. Barz*: “Electrical Double Layer Structure Revisited: Electrode Capacitance in Aqueous Electrolyte and Surfactant Solutions”, Langmuir 36 (2020), p. 4250 - 4260, IF(2020):3.88
J34 A. Khazaeli, G. Godbille-Cardona and D.P.J. Barz*: “A novel flexible hybrid battery supercapacitor based on self-assembled vanadium-graphene hydrogels". Ad. Function. Mat., (2020), 1910378, IF(2020):17.78
J33 A. Jameson, A. Khazaeli, and D.P.J. Barz*: “A rechargeable Zinc Copper Battery Using a Selective Cation Exchange Membrane". J. Power Sources 453 (2020), p. 227873, IF(2020): 9.12
J32 M.H. Pham, A. Khazaeli, G. Godbille-Cardona, F. Truica-Marasescu, B.A. Peppley and D.P.J. Barz*: “Printing of graphene supercapacitors with enhanced capacitances induced by a leavening agent” J. Energy Storage 28 (2020), p. 101210, IF(2020):6.58
J31 S. Mypati, A. Docoslis, and D.P.J. Barz*: “Direct writing of liquids by micro dispensing: Stability and shape of laminar jets with high Froude numbers” Chem. Eng. J. 8 (2020), p. 122645, IF(2020):13.27
J30 A. Khazaeli and D.P.J. Barz:" Fabrication and Charaterization of a coplanar Nickel Metalhydride microbattery equipped with a gel electrolyte." J. Power Sources 414 (2019), p. 141 - 149.IF(2019):8.25
J29 A. Khazaeli, H. Falahati and D.P.J. Barz:" Electrochemical Investigation and Modeling of Metal Hydride Thin-Film Electrodes." J. Alloys Comp. 772 (2019), p. 109 - 208, IF(2018):4.28
J28 M. Khademi and D.P.J. Barz:" Dielectric Relaxation Spectroscopy of Aqueous Micellar Electrolyte Solutions: A Novel Application to Infer Dukhin Number and Zeta Potential of a Micelle." Electrophoresis, 40 (2019), p. 710 - 719. IF(2018):2.75, Featured on the journal cover .
J27 D.P.J. Barz*, M. Scholz, and S. Hardt:" Electrokinetic Manipulation of the von Karman Vortex Street in the Wake of a Confined Cylinder: I. DC Electric Field." Phys. Fluids 30 (2018): 082004., F(2018):2.63.
J26 S. Mypati, S.R. Dhanushkodi, M. McLaren, A. Docoslis, B.A. Peppley and D.P.J. Barz*: “Optimized Inkjet-Printed Silver Nanoparticle Films: Theoretical and Experimental Investigations” RSC Advances, 8 (2018), p. 19679 – 19689, IF(2017):2.94
J25 M. Scholz, S. Hardt, and D.P.J. Barz. "The influence of a DC electric field on the von Kármán vortex street in the wake of a confined cylinder." PAMM 17 (2017), p. 623-624.
J24 M. Khademi, M. Wang, W. Reitinger and D.P.J. Barz*: “The Zeta Potential of PMMA in Contact with Aqueous Electrolyte-Surfactant Solutions” Langmuir 33 (2017), p. 10473–10482, IF5(2015):4.14
J23 R. Festarini, M.-H. Pham, X. Liu and D.P.J. Barz*: “A Sugar-Template Manufacturing Method for Microsystem Ion-Exchange Membranes” J. Micromech. Microeng. 27 (2017):075011 IF5(2017):1.88
J22 M.-H. Pham and D.P.J. Barz*: “Bonding Nafion® with Polydimethysiloxane: A Versatile Approach towards Ion-exchange Membrane Microfluidic Devices” J. Memb. Sci. 537 (2017), p. 310–314: IF5(2015):5.7
J21 H. Falahati, E. Kim and D.P.J. Barz*: “Fabrication and Characterization of Thin-Film Nickel Hydroxide Electrodes for Micro-Power Applications” ACS Appl. Mater. Interfaces, 7 (2015), p. 12797-12808; IF5(2014):6.8
J20 R. Saini, M. Kenny and D.P.J. Barz*: “Electroosmotic flow through packed beds of granular materials”, Microfluid. Nanofluid., 19 (2015), p. 693-708, F5(2014):2.8.
J19 H. Bockelmann and D.P.J. Barz*: “Optimised active flow control for micromixers and other fluid applications: Sensitivity- vs. adjoint-based strategies”, Comput Fluids, 106 (2015), p.93-107; IF5(2014):1.9
J18 R. Saini, A. Garg and D.P.J. Barz*: “Streaming potential revisited: The influence of convection on the surface conductivity”, Langmuir 30 (2014), p. 10950–10961. IF5: 4.5
J17 H. Falahati, L. Wong, A. Garg, L. Davarpanah and D.P.J. Barz*: Investigation on the zeta potential of PMMA in contact with electrolytes of various conditions“, Electrophoresis 35 (2014), p. 870–882, IF: 3.0
J16 D.P.J. Barz* and P.H. Steen: “Dynamics of the electro-osmotically toggled droplet switch“, Phys. Fluids, 25 (2013), pp. 97104, IF5: 2.0
J15 H. Falahati and D.P.J. Barz*: “Evaluation of hydrogen sorption models for AB5-type metal alloys by employing a gravimetric technique“, Int. J. Hydrogen Energy, 38 (2013), p. 8838-8851; IF5: 3.5
Featured as Key Scientific Article in Renewable Energy Global Innovations, ISSN 2291-2460, http://reginnovations.org/, 08/03/2014
J14 H. Bockelmann, V. Heuveline and D.P.J. Barz*: “Optimization of an electrokinetic mixer for microfluidic applications”, Biomicrofluidics, 6 (2012) pp. 024123; IF: 3.4
Featured in Virtual Journal of Nanoscale Science & Technology, Vol. 25, Issue 23 (2012)
J13 D.P.J. Barz*, H.F. Zadeh, and P. Ehrhard: “Measurement and the simulation of time-dependent flow fields within an electrokinetic micromixer“, J. Fluid Mech., 676 (2011), p. 265-293; IF5: 2.8
J12 D.P.J. Barz*, M.J. Vogel, and P.H. Steen: “Determination of the zeta potential of porous substrates by droplet deflection: II. Generation of electrokinetic flow in nonpolar liquids“, Langmuir, 26 (2010), p. 3126–3133; IF5: 4.6
J11 D.P.J. Barz*: “Comprehensive model of electrokinetic flow and migration in microchannels with conductivity gradients“, Microfluid. Nanofluid., 7 (2009), p. 249-265; IF5: 3.7
J10 D.P.J. Barz*, M.J. Vogel, and P.H. Steen: ”Determination of the zeta potential of porous substrates by droplet deflection: I. The influence of ionic strength and pH value of an aqueous electrolyte in contact with a borosilicate surface”, Langmuir, 25 (2009), p.1842-1850; IF: 4.4
J9 D.P.J. Barz*, H.F. Zadeh, and P. Ehrhard: ”Laminar flow and mass transport in a twice-folded microchannel“, AIChE J., 54 (2008), p. 381-393; IF5: 2.3
J8 D.P.J. Barz*, H.F. Zadeh, and P. Ehrhard: ”3D simulation and experiment of flow in a folded microchannel“, PAMM, 6 (2006), p. 559-560;
J7 D.P.J. Barz, P. Ehrhard*: ”Model and validation of electrokinetic flow and transport in a micro electrophoresis device“, Lab Chip, 5 (2005), p. 949-958; IF: 5.3
J6 D.P.J. Barz*, P. Ehrhard: ”Fully-coupled model for electrokinetic flow and transport in microchannels“, PAMM, 5 (2005); p. 535-536.
J5 D.P.J. Barz*, P. Ehrhard: “Simulation of flow and mass transport in a meander microchannel subject to electroosmotic pumping”, Microscale Thermophysical Engineering, 9 (2005), p. 305-316;
J4 D.P.J. Barz*, P. Ehrhard: ”Simulation of flow and electrokinetic transport in a micro-analysis-system“, PAMM, 4 (2004), p. 472-473;
J3 D.P.J. Barz, U.K. Trägner, V.M. Schmidt*, and M. Koschowitz: “Thermodynamics of hydrogen generation from methane for domestic Polymer Electrolyte Fuel Cell Systems”, Fuel Cells, 3 (2003), p. 199-207;
J2 D.P.J. Barz*, P. Ehrhard: “Simulation of flow and mass transport in a meander micro-channel subject to electroosmotic driving“, PAMM, 3 (2003), p. 348-349;
J1 D.P.J. Barz, V.M. Schmidt*: “Addition of dilute H2O2 solutions to H2-CO fuel gases and their influence on performance of a Polymer Electrolyte Fuel Cell”, Phys. Chem. Chem. Phys., 3 (2001), p. 330-336; IF: 2.1
Patents
PT4 A. Khazaeli and D.P.J. Barz: (Flexible) Hybrid Energy Storage device, US Provisional Patent Application 62/874,723 16/07/2019, nternational Patent Application No. PCT/CA2020/050984, 15/07/2020
PT3 A. Class, D.P.J. Barz: “Arrangement for generating liquid flows and/or particle flows, method for producing and operating said arrangement and use of the latter”, US Patent US 20090008255 A1, Karlsruher Institut für Technologie, granted May 21, 2013.
PT2 A. Class, D.P.J. Barz: “Verfahren zur Erzeugung von Flüssigkeitsströmungen und/oder Teilchenströmen, Verfahren zu ihrer Herstellung und zu ihrem Betrieb sowie ihre Verwendung”, German Patent DE 102006004887, Forschungszentrum Karlsruhe GmbH, granted July 22, 2010.
PT1 D.P.J. Barz, K. Boettcher, P. Laksmahnan, and P. Ehrhard: “Vorrichtung und Verfahren zum Mischen von mindestens zwei Flüssigkeiten und Verwendung der Vorrichtung“, German Patent DE 102007013932, Forschungszentrum Karlsruhe GmbH, granted September 25, 2008.
Other Publications:
O16 R. Saini, and D.P.J. Barz*: “Electroosmotic flow measurements based on capillary interface tracking”, Extended Abstract: 1000 Islands Fluid Dynamics Meeting, 30 May – 1 June, 2014, Gananoque, ON, Canada
O15 H. Falahati, E. Kim, and D.P.J. Barz: “Fabrication and Characterization of Thin-Film Nickel Hydroxide Electrodes for Micro-Power Applications, Extended Abstract: 225th Electrochemical Society Meeting, May 11-16, 2014, Orlando, FL, USA
O14 H. Falahati, E. Kim, and D.P.J. Barz: “Fabrication and Characterization of Thin-Film Nickel Hydroxide Electrodes for Micro-Power Applications, Poster: 4th Annual Nano Ontario Conference, Kingston, ON, Canada, November 7-8, 2013.
O13 H. Falahati, L. Wong, Leila Davarpanah and D.P.J. Barz: “The zeta potential of microfluidic substrates in contact with aqueous electrolytes: Influence of ionic strength, pH and temperature on PMMA surfaces”, Poster: EMBL Conference Microfluidics 2012, EMBL Heidelberg, Germany, 25 July-27 July 2012.
O12 H. Falahati and D.P.J. Barz: “Experimental characterization of hydrogen absorbing metal alloys: Evaluation of empirical, thermodynamical and kinetics based models, Poster: World Hydrogen Energy Conference, Toronto, ON, Canada, June 3-7, 2012.
O11 L. Wong, F. Ladki, H. Falahati and D.P.J. Barz: “The zeta potential of microfluidic substrates in contact with aqueous electrolytes: Influence of ionic strength, pH and temperature on PMMA surfaces”, Poster: Ontario-on-a-chip7 / Match annual symposium3, University of Toronto, Toronto, ON, Canada, May 17-18, 2012.
O10 D.P.J. Barz, P.H. Steen: “A dynamic model of an electro-osmotically toggled droplet switch”, Extended Abstract: 1000 Islands Fluid Dynamics Meeting, April 27-29, 2012, Gananoque, ON, Canada
O9 D.P.J. Barz, H. Bockelmann, and V. Heuveline: “Electrokinetic optimization of a micromixer for lab-on-chip applications”, Technical Report: Preprint Series of the Engineering Mathematics and Computing Lab (EMCL) ISSN 2191–0693, No. 2012-02
O8 D.P.J. Barz, M.J. Vogel, and P.H. Steen: “Electro-osmotic flows of nonpolar liquids doped with surfactants”, Poster: a) Ontario-on-a-chip6 / Match annual symposium2, University of Toronto, Toronto, On, Canada, June 09-10, 2011. b) Gordon Research Conferences: Physics and Chemistry of Microfluidics, Waterville Valley Resort, Waterville Valley, NH, USA, June 26 - July 1, 2011
O7 K. Boettcher, D.P.J. Barz: “Numerische Simulation eines elektroosmotischen Mikromischers“, Wissenschaftliche Berichte (reviewed technical report): FZKA-7228, FZ Karlsruhe, September 2006.
O6 D.P J. Barz: “Ein Beitrag zu Modellierung und Simulation von elektrokinetischen Transportprozessen in mikrofluidischen Einheiten“, Wissenschaftliche Berichte (reviewed technical report): FZKA-7172, FZ Karlsruhe, September 2005.
O5 D.P.J. Barz, P. Ehrhard: “Simulation der Strömung und des Stofftransports in einem Mikro-Mäanderkanal“, Wissenschaftliche Berichte (reviewed technical report): FZKA-6863, FZ Karlsruhe, Mai 2003.
O4 D.P.J. Barz, V.M. Schmidt: “Cell integrated CO removal in a PEFC by oxygen produced from H2O2 decomposition“, Extended Abstract: 8th International Fisher Symposium, Electrochemistry and Environment, University of Karlsruhe, Karlsruhe, June 18.-22, 2000.
O3 D.P.J. Barz, V.M. Schmidt: “Zugabe von H2O2-Lösungen in H2/CO-Brenngasmischungen und deren Einfluß auf die Leistung einer Membran-Brennstoffzelle“, Extended Abstract: Bunsentagung, Gesellschaft für Physikalische Chemie, Würzburg, 02.-03. Juni 2000.
O2 D.P.J. Barz, V.M. Schmidt: “Oxidation von CO im Brenngas einer PEFC durch Zugabe von H2O2-Lösungen“, Poster: 56. AGEF-Seminar: Elektrochemische Energietechnik, Forschungszentrum Jülich, Jülich, 21. Februar 2000.
O1 D.P.J. Barz, H.-F. Oetjen und V.M. Schmidt: “Temperaturabhängige Leistungsdaten einer Membran-Brennstoffzelle unter Verwendung von H2/CO als Brenngas“, Poster: Jahrestagung der Fachgruppe Angewandte Elektrochemie, Gesellschaft Deutscher Chemiker: Elektrochemische Verfahrenstechnik-Energietechnik, Stoffgewinnung, Bioelektrochemie, Monheim, 9.-12. Oktober 1996.
Books (Chapters)
D.P.J. Barz, H.F. Zadeh, and P. Ehrhard, "Measurements and simulations of the flow field in an electrically-excited micromixer," Ch. 112, (p. 1-18) in Topics in Applied Physics: Particle Image Velocimetry, A. Schroeder, C.E. Willert, ed(s)., Springer, Berlin/Heidelberg, 2008.
Conference Proceedings
P13 S. Mypati, A. Sellathurai, M. Kontopoulou, A. Docoslis, D. P. J. Barz*, “Synthesis and performance evaluation of exfoliated graphene nanoplatelet hydrogels as electrodes for supercapacitors”, ECS Transactions 97 (7) (2020) 359.
P12 M. Scholz and D.P.J. Barz*: “The Influence of Electroosmotic Flow on the von Kármán Vortex Street in the Wake of a Cylinder Located in a Microchannel”, Proceedings of the ASME 2015 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems and ASME 2015 12th International Conference on Nanochannels, Microchannels, and Minichannels InterPACKICNMM2015, July 6-9, 2015, San Francisco, California, USA
P11 R. Saini, M. Kenny, and D.P.J. Barz*: “Electroosmotic flow through porous materials”, Proceedings of the 12th International Conference on Nanochannels, Microchannels, and Minichannels ICNMM2014 August 3-7, 2014, Chicago, Illinois, USA, Proc. on CD-ROM Paper No. FEDSM2014-21173 New York, N.Y.: ASME, 2014.
P10 H. Bockelmann, V. Heuveline, P. Ehrhard, and D.P.J. Barz*: (Invited keynote paper) “An Electrokinetic Micro Mixer for Lab-on-Chip Applications: Modeling, Validation, and Optimization”, 9th International Conference on Nanochannels, Microchannels and Minichannels ICNMM2011, Edmonton, Alberta, Canada June 19-22, 2011, Proc. on CD-ROM Paper No. ICNMM2011-58278 New York, N.Y.: ASME, 2011.
P9 D.P.J. Barz*, M.J. Vogel, and P.H. Steen: “Generation of electrokinetic flow in a doped non-polar liquid” ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting and 8th International Conference on Nanochannels, Microchannels, and Minichannels, Montreal, Canada, August 1-5, 2010. Proc. on CD-ROM Paper No. FEDSM/ICNMM2010-30258, New York, N.Y.: ASME, 2010 ISBN: 978 0-7918-3880-8.
P8 D.P.J. Barz*, M.J. Vogel, and P.H. Steen: “A novel method to determine the zeta potential of porous substrates by measuring the deflection of two coupled droplets” 7th Internat. Conf. on Nanochannels, Microchannels and Minichannels, Pohang, South Korea, June 22-24, 2009, Proc. on CD-ROM Paper No. ICNMM2009-82161, New York, N.Y.: ASME, 2009 ISBN: 978-0-7918-3850-1.
P7 D.P.J. Barz*, I. Meisel, W. Hoffmann, H. Mühlberger, H.F. Zadeh, and P. Ehrhard: (Invited keynote paper) “Use of electrokinetic phenomena in microfluidic devices“, 6th Internat. Conf. on Nanochannels, Microchannels and Minichannels, Darmstadt, Germany, June 23-25, 2008, Proc. on CD-ROM Paper No. ICNMM2008-62056 New York, N.Y.: ASME, 2008 ISBN: 0-7918-3826-9.
P6 D.P.J. Barz*, P. Ehrhard: “Fully-coupled Modelling of electrokinetic flow and migration of electrolytes in microfluidic devices“, 5th Internat. Conf. on Nanochannels, Microchannels and Minichannels, Puebla, Mexico, June 18-20, 2007, Proc. on CD-ROM Paper No. ICNMM2007-30117 New York, N.Y.: ASME, 2007 ISBN: 0-7918-3800-5.
P5 D.P.J. Barz*, H.F. Zadeh, and P. Ehrhard: “3D Simulation and experimental validation of an electrically-excited flow in a folded microchannel“, 4th Internat. Conf. on Nanochannels, Microchannels and Minichannels, Limerick, Ireland, June 19-21, 2006, Proc. on CD-ROM Paper No. ICNMM2006-96065 New York, N.Y.: ASME, 2006 ISBN: 0-7918-3778-5.
P4 D.P.J. Barz*, P. Ehrhard: “Model and validation of electrokinetic flow and transport in a micro electrophoresis device“, Proc. of Engineering Conf. Internat., Transport Phenomena in Micro and Nanodevices, Engineering Conferences International, Kona Coast, Hawaii, USA, October 17-21, 2004, CD-ROM Paper II-4.
P3 D.P.J. Barz, P. Ehrhard*: “Simulation of flow and mass transfer in a meander microchannel subject to electroosmotic pumping”, Proc. Microscale Heat Transfer 2, EUROTHERM No. 75, Reims, 2003, p. 41-45.;
P2 D.P.J. Barz*, P. Ehrhard: “Simulation of flow and mass transport in a meander micro-channel subject to electroosmotic pumping“, Kandlikar, S.G. (Ed.), 1st International Conference on Microchannels and Minichannels, Rochester N.Y., USA, April 24-25, 2003, New York, N.Y.: ASME, 2003, p. 365-371, ISBN: 0-7918-3667-3.
P1 D.P.J. Barz, V.M. Schmidt*: “Process engineering and components for fuel cell systems“, Proceedings of 2nd European Congress of Chemical Engineering, Montpellier, 05.-07.10.1999, Récents Procès en Génie des Procèdes: Process/System Engineering, Société Français de Génie des Procèdes (Eds), Vol. 13, Issue 70, ISBN 2-910239-6, Montpellier, 1999, p. 1-8.
Selected Awards
Dominik Barz gratefully acknowledges funding from:
Domestic Graduate (PhD/Master) Student at the Graphene Integrated Functional Technologies Research Cluster & Department of Chemical Engineering, Queen’s University, Kingston ON, Canada
Graphene, a flat (2D) monolayer of carbon atoms, combines exceptional thermal and electrical conductivity with light weight, flexibility, and strength. The GIFT Research Cluster at Queen’s University aims to develop a portfolio of GNP-based products, including autonomous sensors, energy storage, fuel cells and electrically conductive devices.
We are looking for a highly motivated, passionate domestic Graduate (MASc/PhD) student to work on our novel flexible battery-supercapacitor hybrids (https://doi.org/10.1002/adfm.201910738)
Qualifications:
Starting date:
As soon as possible
How to apply:
Send your resume and cover letter including contact information for two references to dominik.barz@queensu.ca
Please understand that only selected candidates will be contacted and interviewed.
Research Opportunities for Undergraduate Students
Several 4th Year thesis student opportunities are available. Please contact Dominik Barz.