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Dipl.-Ing. Johannes Walter

Lehrstuhl fĂŒr Feststoff- und GrenzflĂ€chenverfahrenstechnik (LFG)

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    Cauerstraße 4
    91058 Erlangen
  • E-Mail:
  • Telefon: 09131/85-20361
  • Fax: 09131/85-29402
  • Raum: 01.808

Information zur Person

Forschungsgebiet:

Bisher betreute Studien- und Diplomarbeiten:

  • Studien zur Aggregation von Proteinen in der Analytischen Ultrazentrifuge, Masterarbeit Konrad Löhr, Juli 2013.
  • Entwicklung eines Programms zur Auswertung breiter PartikelgrĂ¶ĂŸenverteilungen in der Analytischen Ultrazentrifuge, Bachelorarbeit Heiko Broß, MĂ€rz 2014.
  • Studien zu Ligand-Zinkoxidnanopartikel-Wechselwirkungen mit Hilfe der Analytischen Ultrazentrifuge, Bachelorarbeit Birgit Schotterer, Oktober 2014.
  • Analytische Ultrazentrifugation: Optimierung und Validierung der Geschwindigkeitsrampenmethode zur PartikelgrĂ¶ĂŸenbestimmung, Bachelorarbeit Natalie Mayer, Oktober 2015.

Angebotene Studien- und Diplomarbeiten:

    Nach RĂŒcksprache bzw. entsprechend den AushĂ€ngen.

Nationale und internationale Fach-VortrÀge:

  • J. Walter, D. Segets, U. Weichsel, W. Peukert: "PARTEC - International Congress on Particle Technology 2013", NĂŒrnberg (Germany).
  • J. Walter, W. Wohlleben, H. Cölfen, W. Peukert: "21th International Analytical Ultracentrifugation Conference 2013", Atami (Japan).
  • J. Walter, T. Nacken, W. Peukert: "ProcessNet 2014: Partikelmesstechnik und GrenzflĂ€chenbestimmte Systeme und Prozesse", WĂŒrzburg (Germany).
  • J. Walter, W. Peukert: "Particulate Systems Analysis 2014", Manchester (United Kingdom).
  • J. Walter, T. Thajudeen, S. SĂŒĂŸ, D. Segets, W. Peukert: "International Workshop Dispersion Analysis & Materials Testing 2015", Berlin (Germany).
  • J. Walter, W. Peukert: "ProcessNet 2015: Kristallisation, Partikelmesstechnik und Zerkleinern & Klassieren", Magdeburg (Germany).
  • J. Walter, W. Peukert: "Science-Industry-Symposium NanoVision2015", Erlangen (Germany).
  • J. Walter, T. Nacken, T. Thajudeen, P. J. Sherwood, W. F. Stafford, W. Peukert: "22th International Analytical Ultracentrifugation Conference 2015", Melbourne (Australia).

PosterprÀsentationen:

  • J. Walter, D. Segets, M. Hanisch, W. Peukert: "20th International Analytical Ultracentrifugation Conference 2012", San Antonio (USA).
  • J. Walter, D. Segets, U. Weichsel, W. Peukert: "EAM Summer School 2012", Kloster Banz Bad Staffelstein (Germany), 2. Poster Award.
  • J. Walter, D. Segets, U. Weichsel, W. Peukert: "PARTEC - International Congress on Particle Technology 2013", NĂŒrnberg (Germany).
  • W. Lin, J. Walter, D. Segets, W. Peukert: "International Workshop on Nucleation and Early Stages of Particle Formation 2014", Erlangen (Germany); 1. Poster Award.
  • J. Walter, W. Peukert: "6th EAM Symposium 2014", Kloster Banz Bad Staffelstein (Germany).
  • J. Walter, W. Peukert: "7th EAM Symposium 2014", Kloster Banz Bad Staffelstein (Germany).
  • J. Walter, T. Thajudeen, S. SĂŒĂŸ, D. Segets, P. J. Sherwood, G. Gorbet, B. Demeler, W. F. Stafford, W. Peukert: "22th International Analytical Ultracentrifugation Conference 2015", Melbourne (Australia); 1. Poster Award.
  • J. Walter, W. Peukert: "NIC Symposium 2016", Forschungszentrum Juelich (Germany).

Veröffentlichungen:

  • A. Rumpel, M. Novak, J. Walter, B. Braunschweig, M. Halik, W. Peukert: "Tuning the Molecular Order of C60 Functionalized Phosphonic Acid Monolayer", Langmuir 2011, 27, 15016–15023.
  • K. Engelhardt, A. Rumpel, J. Walter, J. Dombrowski, U. Kulozik, B. Braunschweig, W. Peukert: "Protein Adsorption at the Electrified Air-Water Interface: Implications on Foam Stability", Langmuir 2012, 28, 7780-7787.
  • J. Walter, K. Löhr, E. Karabudak, W. Reis, J. Mikhael, W. Peukert, W. Wohlleben, H. Cölfen: "Multidimensional Analysis of Nanoparticles with Highly Disperse Properties Using Multiwavelength Analytical Ultracentrifugation", ACS Nano 2014, 8, 8871-8886.
  • V. Strauss, J. T. Margraf, C. Dolle, B. Butz, T. J. Nacken, J. Walter, W. Bauer, W. Peukert, E. Spiecker, T. Clark, D. M. Guldi: "Carbon Nanodots: Toward a Comprehensive Understanding of Their Photoluminescence", JACS 2014, 136 (49), 17308-17316.
  • J. Walter, T. J. Nacken, C. Damm, T. Thajudeen, S. Eigler, W. Peukert: "Determination of the Lateral Dimension of Graphene Oxide Nanosheets Using Analytical Ultracentrifugation", Small 2015, 11 (7), 814-825.
  • W. Lin, J. Walter, A. Burger, H. Maid, A. Hirsch, W. Peukert, D. Segets: "A General Approach To Study the Thermodynamics of Ligand Adsorption to Colloidal Surfaces Demonstrated by Means of Catechols Binding to Zinc Oxide Quantum Dots", Chemistry of Materials 2015, 27 (1), 358-369.
  • J. Walter, P. J. Sherwood, W. Lin, D. Segets, W. F. Stafford, W. Peukert: "Simultaneous Analysis of Hydrodynamic and Optical Properties Using Analytical Ultracentrifugation Equipped with Multiwavelength Detection", Analytical Chemistry 2015, 87 (6), 3396-3403.
  • J. Walter, T. Thajudeen, S. SĂŒĂŸ, D. Segets, W. Peukert: "New possibilities of accurate particle characterisation by applying direct boundary models to analytical centrifugation", Nanoscale 2015, 7 (15), 6574-6587.
  • T. J. Nacken, C. Damm, J. Walter, A. RĂŒger, W. Peukert: "Delamination of graphite in a high pressure homogenizer", RSC Advances 2015, 5 (71), 57328-57338.
  • T. Schindler, J. Walter, W. Peukert, D. Segets, T. Unruh: "In Situ Study on the Evolution of Multimodal Particle Size Distributions of ZnO Quantum Dots: Some General Rules for the Occurrence of Multimodalities", J. Phys. Chem. B 2015, 119 (49), 15370–15380.
  • F. Toni, H. Xing, J. Walter, V. Strauß, T. J. Nacken, C. Damm, K.-E. Wirth, D. Guldi, W. Peukert: "Production of well dispersible single walled carbon nanotubes via a “floating catalyst”-method", Chem. Eng. Sci. 2015, 138, 385-395.
  • T. Akdas, J. Walter, D. Segets, M. Distaso, B. Winter, B. Birajdar, E. Spiecker, W. Peukert: "Investigation of the size-property relationship in CuInS2 quantum dots", Nanoscale 2015, 7 (43), 18105-18118.
  • C. E. Halbig, T. J. Nacken, J. Walter, C. Damm, S. Eigler, W. Peukert: "Quantitative investigation of the fragmentation process and defect density evolution of oxo-functionalized graphene due to ultrasonication and milling", Carbon 2016, 96, 897-903.
  • W. Lin, M. Haderlein, J. Walter, W. Peukert, D. Segets: "Spectra Library: An Assumption-Free In Situ Method to Access the Kinetics of Catechols Binding to Colloidal ZnO Quantum Dots", Angew. Chem., Int. Ed. 2016, 55 (3), 932-935.
  • W. Wang, C. Damm, J. Walter, T. J. Nacken, W. Peukert: "Photobleaching and stabilization of carbon nanodots produced by solvothermal synthesis", Phys. Chem. Chem. Phys. 2016, 18 (1), 466-475.
  • J. Walter, W. Peukert: "Dynamic range multiwavelength particle characterization using analytical ultracentrifugation", Nanoscale 2016, DOI: 10.1039/C5NR08547K.
  • J. Walter, D. Segets, W. Peukert: "Extension of the Deep UV-Capabilities in Multiwavelength Spectrometry in Analytical Ultracentrifugation: The Role of Oil Deposits", Part. Part. Syst. Charact. 2016, DOI: 10.1002/ppsc.201500212.

Konferenz Proceedings:

  • J. Walter, D. Segets, U. Weichsel, W. Peukert: "Multiwavelength Analytical Ultracentrifugation – A Unique Tool for Multidimensional Particle Analysis", PARTEC - International Congress on Particle Technology 2013, NĂŒrnberg (Germany).
  • J. Walter, W. Peukert: "Multidimensional Nanoparticle Analysis by Means of Analytical Ultracentrifugation", Particulate Systems Analysis 2014, Manchester (United Kingdom).