@inproceedings{64658,
  author       = {{Neukötter, Moritz and Jesinghausen, Steffen and Schmid, Hans-Joachim}},
  location     = {{Hamburg}},
  title        = {{{Die Möglichkeiten der Filament Extension Atomization }}},
  year         = {{2025}},
}

@inproceedings{64659,
  author       = {{Neukötter, Moritz and Jesinghausen, Steffen and Schmid, Hans-Joachim}},
  location     = {{Berlin}},
  title        = {{{Flow around Particles in Uniaxially Elongated Capillary Bridges}}},
  year         = {{2025}},
}

@article{61014,
  abstract     = {{<jats:p>To obtain a more comprehensive understanding of the specific properties of complex-shaped technical aerosols—such as partially sintered aggregates formed in combustion processes or structured particles resulting from complex synthesis processes—it is essential to measure more than a single equivalent size. This study examines a novel method for determining a two-dimensional distribution of two distinct particle properties within the size range from 50nm to 1000nm: the Centrifugal Differential Mobility Analyzer (CDMA). The CDMA enables the simultaneous measurement of both mobility and Stokes equivalent diameters, providing a detailed two-dimensional particle property distribution. This, in turn, allows for the extraction of shape-related information, which is essential for characterizing particles in terms of their chemical composition, reactivity, and other physicochemical properties. This paper presents a detailed evaluation of a first CDMA prototype. First, CFD simulations of the flow field within the classifier are presented in order to assess and understand non-idealities arising from the exact geometry. Subsequently, the transfer function is evaluated by particle trajectory calculations based on the simulated flow field. It can be demonstrated that the simulated transfer functions agree quite well with transfer functions derived from streamlines of an ideal flow field, indicating that the non-idealities in the classifying region are almost negligible in their effect on the classification result. An experimental determination of the transfer function shows additional effects not covered by the previous simulations, like broadening by diffusion and losses due to diffusion and precipitation within the in- and outlet of the classifier. Finally, the determined transfer functions are used to determine the full two-dimensional distribution with regard to the mobility and Stokes equivalent diameter of real aerosols, like spherical particles and aggregates at different sintering stages, respectively.</jats:p>}},
  author       = {{Rüther, Torben Norbert and Gröne, Sebastian and Dechert, Christopher and Schmid, Hans-Joachim}},
  issn         = {{2674-0516}},
  journal      = {{Powders}},
  keywords     = {{centrifugal differential mobility analysis, 2D-measurement, particle characterization, moving reference frame CFD-simulation, transfer function}},
  number       = {{2}},
  publisher    = {{MDPI AG}},
  title        = {{{Centrifugal Differential Mobility Analysis—Validation and First Two-Dimensional Measurements}}},
  doi          = {{10.3390/powders4020011}},
  volume       = {{4}},
  year         = {{2025}},
}

@article{61010,
  abstract     = {{<jats:p>Abstract. Usually for the characterization of nanoparticles, an equivalent property is measured, e.g. the mobility-equivalent diameter. In the case of non-spherical, complex-shaped nanoparticles, one equivalent particle size is not sufficient for a complete characterization. Most of the methods utilized to gain deeper insight into the morphology of nanoparticles are very time-consuming and costly or have bad statistics (such as tandem setups or TEM (transmission electron microscopy)/SEM (scanning electron microscopy) images). To overcome these disadvantages, a prototype of a new compact device, the Centrifugal Differential Mobility Analyser (CDMA), was built, which can measure the full 2D distribution of mobility-equivalent and Stokes equivalent diameters by classification in a cylinder gap through electrical and centrifugal forces. An evaluation method to determine the transfer probabilities is developed and used in this work to compare the measurement results with the theory for the pure rotational behaviour (like the Aerodynamic Aerosol Classifier) and the pure electrical behaviour (like the Dynamic Mobility Analyser). In addition, the ideal 2D transfer function was derived using a particle trajectory approach. This 2D transfer function is a prerequisite for obtaining the full 2D particle size distribution from measurements by inversion.
                    </jats:p>}},
  author       = {{Rüther, Torben N. and Rasche, David B. and Schmid, Hans-Joachim}},
  issn         = {{2940-3391}},
  journal      = {{Aerosol Research}},
  number       = {{1}},
  pages        = {{65--79}},
  publisher    = {{Copernicus GmbH}},
  title        = {{{The Centrifugal Differential Mobility Analyser – concept and initial validation of a new device for measuring 2D property distributions}}},
  doi          = {{10.5194/ar-3-65-2025}},
  volume       = {{3}},
  year         = {{2025}},
}

@article{61013,
  author       = {{Rüther, Torben N. and Rasche, David B. and Schmid, Hans-Joachim}},
  issn         = {{0021-8502}},
  journal      = {{Journal of Aerosol Science}},
  keywords     = {{POCS, Projection onto convex sets, Data inversion, 2D distribution, CDMA, Centrifugal Differential Mobility Analyzer}},
  publisher    = {{Elsevier BV}},
  title        = {{{The POCS-Algorithm—An effective tool for calculating 2D particle property distributions via data inversion of exemplary CDMA measurement data}}},
  doi          = {{10.1016/j.jaerosci.2025.106606}},
  volume       = {{188}},
  year         = {{2025}},
}

@article{61011,
  author       = {{Rüther, Torben N. and Schmid, Hans-Joachim}},
  issn         = {{0278-6826}},
  journal      = {{Aerosol Science and Technology}},
  number       = {{9}},
  pages        = {{1108--1121}},
  publisher    = {{Informa UK Limited}},
  title        = {{{Prediction of the transfer function for a centrifugal differential mobility analyzer by streamline functions}}},
  doi          = {{10.1080/02786826.2025.2519092}},
  volume       = {{59}},
  year         = {{2025}},
}

@inproceedings{61341,
  author       = {{Beimdiek, Janis and Schmid, Hans-Joachim}},
  location     = {{Paderborn}},
  title        = {{{SFS-gestützte Synthese von Katalysatorpartikeln zur selektiven katalytischen Reduktion von NOx}}},
  year         = {{2025}},
}

@inproceedings{61343,
  author       = {{Beimdiek, Janis and Schmid, Hans-Joachim}},
  location     = {{Nürnberg}},
  title        = {{{Influence of surface impurities on the catalytic activity of nanoparticles synthesized by a spray flame synthesis (oral presentation)}}},
  year         = {{2025}},
}

@inproceedings{59566,
  author       = {{Beimdiek, Janis and Schmid, Hans-Joachim}},
  location     = {{Clausthal-Zellerfeld}},
  title        = {{{Selektive katalytische Reduktion von NOx an gasphasensynthetisierten Katalysatorpartikeln (Vortrag)}}},
  year         = {{2025}},
}

@misc{61346,
  author       = {{El Gabbouhi, Abderazzak and Massopo, Orlando and Jesinghausen, Steffen and Schmid, Hans-Joachim}},
  title        = {{{Untersuchung des Einflusses der Zusammensetzung von Lösungsmitteln und Gasen bei der Herstellung nanoskaliger Eisenoxide mittels Sprühflammensynthese}}},
  year         = {{2025}},
}

@inproceedings{61396,
  author       = {{Nölle, Florian and Schmid, Hans-Joachim and Bentrup, Leon Alexander and Temmen, Katrin}},
  booktitle    = {{MINT-Symposium}},
  location     = {{Nürnberg}},
  title        = {{{Erfolgreich Studieren - sinnvolle Lernstrategien erlernen (Posterbeitrag)}}},
  year         = {{2025}},
}

@inproceedings{62083,
  author       = {{Nölle, Florian and Schmid, Hans-Joachim}},
  booktitle    = {{Tag der Lehre 2025}},
  location     = {{Universität Paderborn, Paderborn}},
  title        = {{{Erfolgreich Studieren – sinnvolle Lernstrategien erlernen}}},
  year         = {{2025}},
}

@inproceedings{64660,
  author       = {{Neukötter, Moritz and Jesinghausen, Steffen and Schmid, Hans-Joachim}},
  location     = {{Nürnberg}},
  title        = {{{Polymer Suspensions under Uniaxial Extension – A novel Way to Produce Core-Shell-Particles? }}},
  year         = {{2025}},
}

@misc{51133,
  abstract     = {{In order to standardize spray flame synthesis (SFS) studies, intensive work has been done in recent years on the design of burner types. Thus, in 2019, the so-called SpraySyn1 burner was introduced (SS1), which was subsequently characterized in numerical and experimental studies. Based on this research, a modification of the nozzle design was proposed, which has now been considered in the successor model, SpraySyn2 (SS2). As little is known about the effect of the nozzle adaptation on the particle formation, we operated both burners under identical operating conditions to produce maghemite. The final powder comparison showed that SS2 yielded considerable higher specific surface areas (associated with smaller primary particle sizes), lower polydispersity, and higher phase purity. To obtain further information on the size distributions of aggregates and agglomerates generated by SS2, aerosol samples were extracted by hole in a tube (HIAT) sampling and characterized by scanning mobility particle sizing (SMPS). Samples were extracted along the centerline at different heights above the burner (HAB) above the visible flame tip (>7 cm), and quenching experiments were performed to extract the aerosol samples at different dilution rates. Thereby, it was demonstrated that performing detailed quenching experiments is crucial for obtaining representative HIAT-SMPS data. In particular, agglomerates/aggregate sizes were overestimated by up to ~70 % if samples were not sufficiently diluted. If sufficient dilution was applied, distribution widths and mean particle mobility diameters were determined with high accuracy (sample standard derivation <5 %). Our data suggested the evolution of primary particle sizes was mostly completed <7 cm HAB and it was shown aggregates/agglomerates present above the visible flame were compact in structure (non- fractal). The mean diameter of the particle ensemble grew along the centerline from 6.9 nm (7 cm) to 11.4 nm (15 cm), while distribution widths grew from 1.42 to 1.52.}},
  booktitle    = {{Applications in Energy and Combustion Science}},
  editor       = {{Tischendorf, Ricardo and Massopo, Orlando and Schmid, Hans-Joachim and Pyrmak, Olek and Dupont, Sophie and Fröde, Fabian and Pitsch, Heinz and Kneer, Reinhold}},
  keywords     = {{Flame Spray Pyrolysis, SpraySyn2, Spray flame synthesis, Maghemite nanoparticles, Gas to particle-conversion, Hole in a tube sampling}},
  publisher    = {{Elsevier}},
  title        = {{{Maghemite nanoparticles synthesis via spray flame synthesis and particle characterization by hole in a tube sampling and scanning mobility particle sizing (HIAT-SMPS)}}},
  doi          = {{https://doi.org/10.1016/j.jaecs.2023.100235}},
  year         = {{2024}},
}

@article{52357,
  author       = {{Beimdiek, Janis and Schmid, Hans-Joachim}},
  issn         = {{2073-4433}},
  journal      = {{Atmosphere}},
  keywords     = {{surrogate aerosols, indoor air cleaners, ultra-fine particles, COVID-19, test method, field experiments: clean air delivery rate}},
  number       = {{3}},
  publisher    = {{Multidisciplinary Digital Publishing Institute (MDPI)}},
  title        = {{{Evaluation of Surrogate Aerosol Experiments to Predict Spreading and Removal of Virus-Laden Aerosols}}},
  doi          = {{ 10.3390/atmos15030305}},
  volume       = {{15}},
  year         = {{2024}},
}

@misc{51149,
  author       = {{Reimer, Jens and Massopo, Orlando and Schmid, Hans-Joachim}},
  title        = {{{Entwicklung einer Datenbank hergestellter Nanomaterialien mittels Gasphasensynthese (Studienarbeit)}}},
  year         = {{2024}},
}

@inproceedings{56958,
  author       = {{Neukötter, Moritz and Jesinghausen, Steffen and Schmid, Hans-Joachim}},
  location     = {{Leeds}},
  title        = {{{Particle-induced Instabilities in Uniaxially Elongated Thermoplastic Polymer Blends }}},
  year         = {{2024}},
}

@inproceedings{61350,
  author       = {{Massopo, Orlando and Schmid, Hans-Joachim and Reddemann, Manuel and Kneer, Reinhold and Bieber, Malte}},
  publisher    = {{6th International Symposium Gas-Phase Synthesis of Functional Nanomaterials: Fundamental Understanding, Modeling and Simulation, Scale-up and Application}},
  title        = {{{Influence of Dispersion Gas and Resulting Reaction Zone on the Particle Formation in Spray Flame Synthesis (Presentation)}}},
  year         = {{2024}},
}

@misc{61345,
  author       = {{Zink, Timm Florian and Massopo, Orlando and Jesinghausen, Steffen and Schmid, Hans-Joachim}},
  title        = {{{Untersuchung des Lösungsmitteleinflusses auf die Synthese von Manganoxid-Nanopartikeln in der Flammenspraypyrolyse}}},
  year         = {{2024}},
}

@misc{61347,
  author       = {{El Gabbouhi, Abderazzak and Massopo, Orlando and Jesinghausen, Steffen and Schmid, Hans-Joachim}},
  title        = {{{Einfluss der Zerstäubungsparameter auf die Partikelbildung und die Eigenschaften der Endproduktpulver (Studienarbeit)}}},
  year         = {{2024}},
}