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Gunter Hagen: Publications



-- 2022 --
C. Steiner, G. Hagen, I. Kogut, H. Fritze, R. Moos:
Analysis of defect chemistry and microstructural effects of non-stoichiometric ceria by the high-temperature microwave cavity perturbation method.
In: Journal of the European Ceramic Society. Bd. 42, Heft 2, pp. 499-511, ISSN 0955-2219, DOI: https://doi.org/10.1016/j.jeurceramsoc.2021.08.053 (2022)

-- 2021 --
J. Herrmann, G. Hagen, J. Kita, R. Moos, D. Bleicker, F. Noack:
Konzept eines Multigassensors zur Erfüllung strengster Emissionsanforderungen an Verbrennungsmotoren.
Veranstaltung: 42. Internationales Wiener Motorensymposium , 28.–30. April 2021 , Wien, Österreich (2021)
J. Herrmann, C. Kern, G. Hagen, R. Moos:
Influence of the Gas Velocity on the Temperature Homogeneity of Transducers for Gas Sensors.
Veranstaltung: SMSI Sensor and Measurement Science International , Virtual Conference, DOI: https://doi.org/10.5162/SMSI2021/B7.2, 03-06 May 2021 , Nuremberg, Germany (2021)
J. Herrmann, T. Wöhrl, R. Werner, G. Hagen, J. Kita, R. Moos:
Experimental Verification of the Temperature Homogeneity of Heated Gas Sensor Transducers Inside a Protection Cap.
Veranstaltung: The 18th International Meeting on Chemical Sensors, IMCS2021, online conference, DOI: https://doi.org/10.1149/MA2021-01581580mtgabs, May 30 - June 6 (2021)
T. Ritter, G. Hagen, R. Moos:
Dynamic Catalyst Conversion Measurement Using One Single Sensor Device.
Veranstaltung: The 18th International Meeting on Chemical Sensors, IMCS2021, online conference, DOI: https://doi.org/10.1149/MA2021-01561487mtgabs, May 30 - June 6 (2021)
C. Steiner, V. Malashchuk, G. Hagen, D.J. Kubinski, R. Moos:
Microwave-Based State Diagnosis for Three-Way Catalysts : A Promising Technology for Future Gasoline Exhaust Gas Aftertreatment.
Veranstaltung: The 18th International Meeting on Chemical Sensors, IMCS2021, online conference, DOI: https://doi.org/10.1149/MA2021-01581582mtgabs, May 30 - June 6 (2021)

-- 2020 --
J. Herrmann, G. Hagen, J. Kita, F. Noack, D. Bleicker, R. Moos:
Multi-gas sensor to detect simultaneously nitrogen oxides and oxygen.
In: Journal of Sensors and Sensor Systems. Bd. 9, Heft 2, S. 327-335, ISSN 2194-878X, DOI: https://doi.org/10.5194/jsss-9-327-2020 (2020)
T. Ritter, G. Hagen, R. Moos:
Dynamic Catalyst Conversion Measurement Using One Single Sensor Device.
The 18th International Meeting on Chemical Sensors, IMCS 18, DOI: https://doi.org/10.1149/MA2020-01282157mtgabs, Montreal, Canada (cancelled conference), May (2020)
P. Schwanzer, J. Mieslinger, H.-P. Rabl, M. Dietrich, G. Haft, S. Walter, G. Hagen, R. Moos, M. Gaderer:
Monitoring of a Particulate Filter for Gasoline Direct Injection Engines with a Radio-Frequency-Sensor.
11th International Exhaust Gas and Particulate Emissions Forum, 3.-4.3.2020, Ludwigsburg, Germany (2020)
C. Steiner, S. Walter, V. Malashchuk, G. Hagen, I. Kogut, H. Fritze, R. Moos:
Determination of the Dielectric Properties of Storage Materials for Exhaust Gas Aftertreatment Using the Microwave Cavity Perturbation Method.
In: Sensors. Bd. 20, Heft 21, No. 6024, ISSN 1424-8220, DOI: https://doi.org/10.3390/s20216024 (2020)
S. Walter, P. Schwanzer, G. Hagen, G. Haft, M. Dietrich, H.-P. Rabl, R. Moos:
Hochfrequenzsensorik zur direkten Beladungserkennung von Benzinpartikelfiltern.
In: Tille, Thomas (Hrsg.): Automobil-Sensorik 3 : Prinzipien, Technologien und Anwendungen. Berlin, Springer Vieweg, S. 185-208, ISBN 978-3-662-61259-0, DOI: https://doi.org/10.1007/978-3-662-61260-6_7 (2020)
S. Walter, P. Schwanzer, G. Hagen, G. Haft, H.-P. Rabl, M. Dietrich, R. Moos:
Modelling the Influence of Different Soot Types on the Radio-Frequency-Based Load Detection of Gasoline Particulate Filters.
In: Sensors. Bd. 20, Heft 9, Art.Nr. 2659, ISSN 1424-8220, DOI: https://doi.org/10.3390/s20092659 (2020)

-- 2019 --
M. Dietrich, G. Hagen, R. Moos:
Modelling Both the NH3Storage on Automotive SCR Catalysts and the Radio-Frequency-Based Response.
In: Topics in Catalysis, vol. 62, Issue 1-4, pp. 172-178, doi: 10.1007/s11244-019-01140-x, Springer (2019)
M. Dietrich, G. Hagen, R. Moos:
Dielectric properties and temperature dependency of automotive catalystcoatings and substrate materials: Experimental results,influences and approximation approach.
In: Functional Materials Letters, vol. 12, issue 3, p. 195024, doi: 10.1142/S1793604719500243 (2019)
G. Hagen, A. Müller, J. Lattus, J. Kita, R. Moos, F. Noack, D. Bleicker:
Impedanz-basierter NOx-Sensor für Abgasanwendungen.
Sensoren und Messsysteme 2019, doi.org/10.5162/sensoren2019/2.4.4, 25.-26.6.2019, Nürnberg (2019)
V. Malashchuk, C. Steiner, G. Hagen, R. Moos:
Simulation model for the radio frequency based state diagnosis of three-way catalytic converters.
International Symposium on Modeling of Exhaust-Gas After-Treatment (MODEGAT VI), September 8-10, Bad Herrenalb/Karlsruhe (2019)
T. Ritter, J. Lattus, G. Hagen, R. Moos:
On the influence of the NO x equilibrium reaction on mixed potential sensor signals : a comparison between FE modelling and experimental data.
In: Sensors and Actuators B: Chemical. Bd. 296, S. 126627, ISSN 0925-4005, DOI: https://doi.org/10.1016/j.snb.2019.126627 (2019)
T. Ritter, J. Lattus, G. Hagen, R. Moos:
A finite element model for mixed potential sensors.
In: Sensors and Actuators B: Chemical, vol. 287, pp. 476-485, doi: 10.1016/j.snb.2019.02.052 (2019)
C. Steiner, A. Gänzler, M. Zehentbauer, G. Hagen, S. Müller, J. Grunwaldt, R. Moos:
Oxidation State and Dielectric Properties of Ceria-Based Catalysts by Complementary Microwave Cavity Perturbation and X-Ray Absorption Spectroscopy Measurements.
In: Topics in Catalysis, vol. 62, Issue 1-4, pp. 227-236, doi: 10.1007/s11244-018-1110-3, Springer (2019)
C. Steiner, V. Malashchuk, D.J. Kubinski, G. Hagen, R. Moos:
Catalyst State Diagnosis of Three-Way Catalytic Converters Using Different Resonance Parameters—A Microwave Cavity Perturbation Study.
In: Sensors, vol. 19, issue 16, pp. 3559, doi: 10.3390/s19163559 (2019)
S. Walter, A. Bogner, G. Hagen, R. Moos:
Novel radio-frequency-based gas sensor with integrated heater.
In: Journal of Sensors and Sensor Systems, vol. 8, pp. 49-56, doi: 10.5194/jsss-8-49-2019 (2019)
S. Walter, M. Dietrich, G. Hagen, R. Moos:
Simulative Modelling of the Location Dependent Soot Distribution in Gasoline Particle Filters and their Influence to the Soot Mass Determination by Radio Frequency and Differential Pressure Sensors.
23rd ETH-Conference on Combustion Generated Nanoparticles, June 17-20, Zurich, Switzerland (2019)
S. Walter, L. Ruwisch, U. Göbel, G. Hagen, R. Moos:
Radio Frequency-Based Determination of the Oxygen and the NOxStorage Level of NOxStorage Catalysts.
In: Topics in Catalysis, vol. 62, Issue 1-4, pp. 157-163, doi: 10.1007/s11244-018-1079-y, Springer (2019)

-- 2018 --
M. Bektas, S. Püls, G. Hagen, R. Moos:
Resistiver Sauerstoffsensor mit temperaturunabhängiger Kennlinie.
Sensoren und Messsysteme 2018, 26.6.-27.6.2018, Nürnberg (2018)
M. Bektas, T. Stöcker, A. Mergner, G. Hagen, R. Moos:
Combined resistive and thermoelectric oxygen sensor with almost temperature-independent characteristics.
In: Journal of Sensors and Sensor Systems. Bd. 7, S. 289-297, DOI: https://doi.org/10.5194/jsss-7-289-2018 (2018)
D. Bleicker, G. Hagen, J. Kita, J. Lattus, R. Moos, F. Noack:
Verfahren zur Messung von Stickoxiden und Vorrichtung zur Durchführung des Verfahrens.
Patent, DE 102018115623 (2018)
K. Burger, M. Dietrich, G. Hagen, M. Hien, R. Moos, W. Reitmeier, S. Walter:
Verfahren und Vorrichtung zum Ermitteln eines Zustands eines Abgasbehandlungselements für ein Kraftfahrzeug.
Patent, DE 102018207475 (2018)
M. Dietrich, G. Hagen, R. Moos:
Modelling both the NH3 Storage on Automotive SCR Catalysts and the Radio-Frequency-Based Response.
In: CAPOC11 - 11th International Congress on Catalysis and Automotive Pollution Control, Brussels (Belgium) Oct. 29 - 31 (2018)
G. Hagen, A. Harsch, R. Moos:
A pathway to eliminate the gas flow dependency of a hydrocarbon sensor for automotive exhaust applications.
In: Journal of Sensors and Sensor Systems. Bd. 7, S. 79-84, DOI: https://doi.org/10.5194/jsss-7-79-2018, Februar (2018)
G. Hagen, C. Spannbauer, M. Feulner, J. Kita, A. Müller, R. Moos:
Conductometric Soot Sensors : Internally Caused Thermophoresis as an Important Undesired Side Effect.
In: Sensors. Bd. 18, Heft 10, Art.Nr. 3531, DOI: https://doi.org/10.3390/s18103531 (2018)
G. Hagen, C. Spannbauer, R. Moos:
Electrophoretic and thermophoretic effects on conductometric soot sensing : special challenges when using synthetic soot.
In: 17th International Meeting on Chemical Sensors - IMCS 2018. S. 639-640, DOI: https://doi.org/10.5162/IMCS2018/P1SM.1, Wien (2018)
J. Lattus, G. Hagen, J. Kita, D. Bleicker, F. Noack, R. Moos:
NOx sensor for exhaust applications.
In: 17th International Meeting on Chemical Sensors - IMCS 2018. S. 438-439, DOI: https://doi.org/10.5162/IMCS2018/P1AP.2, Wien (2018)
R. Moos, S. Walter, C. Steiner, G. Hagen:
Sensing catalytic converters and filters at work using radio frequencies.
In: Eurosensors XXXII, Graz (Austria), September 9 - 12 (2018)
T. Ritter, G. Hagen, J. Lattus, R. Moos:
Solid state mixed potential sensors as direct conversion sensors for automotive catalysts.
Sensors and Actuator s B: Chemical , vol. 255, Issue 3, pp. 3025 - 3032, doi: 10.1016/j.snb.2017.09.126 (2018)
T. Ritter, G. Hagen, R. Moos:
Mixed-potential based direct catalyst conversion sensor : Independency of the sensor response from oxygen, electrode material, and from the type of analyte.
In: 17th International Meeting on Chemical Sensors - IMCS 2018. S. 132-133, DOI: https://doi.org/10.5162/IMCS2018/GS3.4, Wien (2018)
T. Ritter, J. Lattus, G. Hagen, R. Moos:
Effect of the Heterogeneous Catalytic Activity of Electrodes for Mixed Potential Sensors.
In: Journal of the Electrochemical Society. Bd. 165, Heft 16, S. 795-803, DOI: https://doi.org/10.1149/2.0181816jes (2018)
V. Rizzotto, P. Chen, G. Hagen, R. Moos, U. Simon:
A Gas Sensing Approach to Gain Insight into the Mechanism of DeNOx-SCR over Fe-ZSM-5 Catalysts.
In: 17th International Meeting on Chemical Sensors - IMCS 2018. S. 134-135 DOI: https://doi.org/10.5162/IMCS2018/GS3.5, Wien (2018)
C. Steiner, A. Gänzler, M. Zehentbauer, G. Hagen, M. Casapu, S. Müller, J. Grunwaldt, R. Moos:
Oxidation state and dielectric properties of ceria-based catalysts by complementary microwave cavity perturbation and X-ray absorption spectroscopy measurements.
In: CAPOC11 - 11th International Congress on Catalysis and Automotive Pollution Control, Oct. 29 - 31, 2018 , Brussels (Belgium) (2018)
S. Walter, L. Ruwisch, U. Göbel, G. Hagen, R. Moos:
Radio-frequency-based determination of the oxygen and the NOx storage level of NOx storage catalysts.
In: CAPOC11 - 11th International Congress on Catalysis and Automotive Pollution Control, Oct. 29 - 31, 2018 , Brussels (Belgium) (2018)

-- 2017 --
A. Bogner, M. Dietrich, G. Hagen, R. Moos, D. Rauch, C. Steiner, S. Walter:
Verfahren zur Detektion einer Gaskonzentration.
Patent, DE 102017006187 (2017)
A. Bogner, C. Steiner, S. Walter, J. Kita, G. Hagen, R. Moos:
Planar Microstrip Ring Resonator Structure for Gas Sensing and Humidity Sensing Purposes.
In: Proceedings. Bd. 1, Heft 4, S. 414, doi.org/10.3390/proceedings1040414, ISSN 2504-3900 (2017)
M. Dietrich, G. Hagen, W. Reitmeier, K. Burger, M. Hien, P. Grass, D.J. Kubinski, J.H. Visser, R. Moos:
Radio-Frequency-Based NH3-Selective Catalytic Reduction Catalyst Control: Studies on Temperature Dependency and Humidity Influences.
In: SAE International Journal of Engines: SAE World Congress 2017, vol. 10, doi.org/10.4271/2017-01-0945, Detroit, Michigan (USA), April, in press (2017)
M. Dietrich, G. Hagen, W. Reitmeier, K. Burger, M. Hien, P. Grass, D.J. Kubinski, J.H. Visser, R. Moos:
Radio-Frequency-Controlled Urea Dosing for NH3-SCR Catalysts : NH3 Storage Influence to Catalyst Performance under Transient Conditions.
In: Sensors. Bd. 17, Heft 12, Article number: 2746, doi.org/10.3390/s17122746, ISSN 1424-8220 (2017)
M. Dietrich, C. Steiner, G. Hagen, R. Moos:
Radio-Frequency-Based Urea Dosing Control for Diesel Engines with Ammonia SCR Catalysts.
In: SAE International Journal of Engines: SAE World Congress 2017, vol. 10, doi.org/10.4271/2017-01-0945, Detroit, Michigan (USA), April, in press (2017)
M. Feulner, G. Hagen, K. Hottner, S. Redel, A. Müller, R. Moos:
Comparative Study of Different Methods for Soot Sensing and Filter Monitoring in Diesel Exhausts.
Sensors 2017, vol. 17, Issue 2, pp. 1 - 12, doi: 10.3390/s17020400 (2017)
M. Feulner, F. Seufert, A. Müller, G. Hagen, R. Moos:
Influencing Parameters on the Microwave-Based Soot Load Determination of Diesel Particulate Filters.
Topics in Catalysis, vol. 60, Issue 3-5, pp. 374-380, doi: 10.1007/s11244-016-0626-7, March (2017)
G. Hagen, A. Harsch, R. Moos:
Setup to eliminate the gas flow dependency of a hydrocarbon sensor for automotive exhaust applications.
Sensor 2017: 18th International Conference on Sensors and Measurement Technology, 30.05.-01.06.2017, Nürnberg, Deutschland (2017)
G. Hagen, N. Leupold, S. Wiegärtner, R. Moos:
Sensor Tool for Fast Catalyst Material Characterization.
Topics in Catalysis, vol. 60, Issue 3-5, pp. 312-317, doi: 10.1007/s11244-016-0617-8, March (2017)
J. Kita, G. Hagen, C. Schmitt, R. Moos:
Sensitivity Improvement of Thermoelectric Hydrocarbon Sensors : Combination of Glass-Ceramic Tapes and Alumina Substrates.
In: Proceedings. Bd. 1, Heft 4, S. 403, doi.org/10.3390/proceedings1040403, ISSN 2504-3900 (2017)
B. Ojha, G. Hagen, H. Kohler, R. Moos:
Exhaust Gas Analysis of Firewood Combustion Processes : Application of a Robust Thermoelectric Gas Sensor.
In: Proceedings. Bd. 1, Heft 4, S. 457, doi.org/10.3390/proceedings1040457, ISSN 2504-3900 (2017)
T. Ritter, G. Hagen, J. Kita, S. Wiegärtner, F. Schubert, R. Moos:
Self-Heated HTCC-based Ceramic Disc for Mixed Potential Sensors and for Direct Conversion Sensors for Automotive Catalysts.
Sensors and Actuators B: Chemical, vol. 248, pp. 793-802, doi: 10.1016/j.snb.2016.11.079 (2017)
T. Ritter, G. Hagen, R. Moos:
Novel mixed potential sensor device to compare two gas compartments and to determine directly the conversion of an automotive catalyst.
Sensor 2017: 18th International Conference on Sensors and Measurement Technology. doi.org/10.5162/sensor2017/A6.4, 30.05.-01.06.2017, Nürnberg, Deutschland (2017)
T. Ritter, G. Hagen, R. Moos:
Direct Catalyst Conversion Sensor in Form of a Single Self-Heated Mixed-Potential Device.
In: Proceedings. Bd. 1, Heft 4, S. 424, doi.org/10.3390/proceedings1040424, ISSN 2504-3900 (2017)
T. Ritter, S. Wiegärtner, G. Hagen, R. Moos:
Simulation of a thermoelectric gas sensor that determines hydrocarbon concentrations in exhausts and the light - off temperature of catalyst materials.
Journal of Sensors and Sensor Systems, vol. 6, Issue 2, pp. 395-405, doi: 10.5194/jsss-6-395-2017 (2017)

-- 2016 --
K. Burger, M. Dietrich, G. Hagen, M. Hien, R. Moos, W. Reitmeier, D. Schädlich:
Katalysator-Alterungserkennung mit minimalem Ammoniak-Schlupf.
Patent, DE 102016219640 (2016)
K. Burger, M. Dietrich, G. Hagen, M. Hien, R. Moos, W. Reitmeier, D. Schädlich:
Katalysator-Alterungserkennung ohne zusätzliche Systemkomponente.
Patent, DE 102016219644 (2016)
G. Hagen, M. Feulner, R. Werner, M. Schubert, A. Müller, G. Rieß, D. Brüggemann, R. Moos:
Capacitive soot sensor for diesel exhausts.
Sensors and Actuators B: Chemical, vol. 236, pp. 1020 - 1027, doi: 10.1016/j.snb.2016.05.006 (2016)
G. Hagen, R. Moos:
OBM-PEMS made of chemical sensors - illusion or probable perspective.
4th International Conference on Real Driving Emissions. 25.-27.10., Berlin, Germany (2016)
G. Hagen, R. Moos, W. Reitmeier, S. Wiegärtner:
Verfahren zum Betreiben eines Sensors zur Detektion oxidierbarer Gase.
Patent, DE102016205060A1 (2016)
G. Hagen, C. Spannbauer, M. Feulner, J. Kita, A. Müller, D. Brüggemann, R. Moos:
Conductometric Soot Sensors : Influence of Voltage and Temperature on the Soot Deposition.
The 16th International Meeting on Chemical Sensors - IMCS 2016. 10th - 13th July, Jeju, Korea (2016)
G. Hagen, R. Werner, M. Feulner, A. Müller, R. Moos:
Grundlegende Betrachtungen zu kapazitiven Rußsensoren.
Sensoren und Messsysteme 2016, pp. 173-176, doi: 10.5162/sensoren2016/3.2.2, Nürnberg, 10.5.-11.5. (2016)
G. Hagen, R. Werner, M. Feulner, M. Schubert, A. Müller, D. Brüggemann, R. Moos:
Soot Sensing : Modelling and Real Gas Test of a Capacitive Approach.
The 16th International Meeting on Chemical Sensors - IMCS 2016. 10th - 13th July, Jeju, Korea (2016)
T. Ritter, G. Hagen, J. Kita, F. Schubert, S. Wiegärtner, R. Moos:
Self-heated Direct Conversion Sensor for Automotive Catalysts Manufactured in HTCC Technology.
The 16th International Meeting on Chemical Sensors - IMCS 2016. 10th - 13th July, Jeju, Korea (2016)
T. Ritter, S. Wiegärtner, G. Hagen, R. Moos:
Modelling of a Temperature Modulated Thermoelectric Hydrocarbon Gas Sensor.
The 16th International Meeting on Chemical Sensors - IMCS 2016. 10th - 13th July, Jeju, Korea (2016)
F. Schubert, S. Wollenhaupt, J. Kita, G. Hagen, R. Moos:
Platform to develop exhaust gas sensors manufactured by glass-solder-supported joining of sintered yttria-stabilized zirconia.
In: Journal of Sensors and Sensor Systems. Bd. 5, S. 25-32, doi.org/10.5194/jsss-5-25-2016, ISSN 2194-878X (2016)
S. Wiegärtner, G. Hagen, J. Kita, D. Schönauer-Kamin, W. Reitmeier, K. Burger, P. Grass, M. Kaspar, H.-P. Rabl, A. Prince, P. Weigand, R. Moos:
Thermoelektrischer Kohlenwasserstoffsensor in Dickschichttechnik mit Pt|PtRh Thermopile zur On-Board-Diagnose eines Diesel-Oxidations-Katalysators.
Sensoren und Messsysteme 2016, pp. 126-129, doi: 10.5162/sensoren2016/2.2.32016, Nürnberg, 10.5.-11.5. (2016)

-- 2015 --
M. Dietrich, M. Feulner, G. Hagen, R. Moos, D. Rauch:
Verfahren zur Beladungs- und/oder Zustanderkennung von Abgasnachbehandlungs-Komponenten mit Hilfe von Mikrowellen.
Patent, DE 102015006232 (2015)
M. Dietrich, M. Feulner, G. Hagen, R. Moos, D. Rauch:
Antennenmodul mit zwei kombinierten Antennen für ein Verfahren zur Zustandserkennung von Abgasnachbehandlungs-Komponenten mit Hilfe von Mikrowellen.
Patent, DE102015001228A1 (2015)
M. Dietrich, M. Feulner, G. Hagen, R. Moos, D. Rauch:
lnduktive Antennen mit Thermoelement für ein Verfahren zur Zustandserkennung eines Katalysators mit Mikrowellen.
Patent, DE102015001230A1 (2015)
M. Dietrich, M. Feulner, G. Hagen, R. Moos, D. Rauch:
Verfahren zur simultanen Überwachung der verschiedenen Funktionen eines Abgasnachbehandlungssystems aus mehreren Komponenten mit einem einzigen mikrowellenbasierten Messsystem.
Patent, DE102015001231A1 (2015)
M. Dietrich, M. Feulner, G. Hagen, R. Moos, D. Rauch:
Vorrichtung zur Einkopplung und/oder Auskopplung von Mikrowellen in den Abgasstrang eines Verbrennungsmotors.
Patent, DE102015001229A1 (2015)
M. Feulner, G. Hagen, A. Müller, A. Schott, C. Zöllner, D. Brüggemann, R. Moos:
Conductometric Sensor for Soot Mass Flow Detection in Exhausts of Internal Combustion Engines.
Sensors 2015, vol. 15, Issue 11, pp. 28796-28806; doi:10.3390/s151128796, November (2015)
M. Feulner, F. Seufert, A. Müller, G. Hagen, R. Moos:
Influencing Parameters on the Microwave-Based Soot Load Determination of Diesel Particulate Filters.
In: CAPOC10 - 10th International Congress on Catalysis and Automotive Pollution Control, pp. 417-429, Brussels (Belgium), October (2015)
G. Hagen, K. Burger, S. Wiegärtner, D. Schönauer-Kamin, R. Moos:
A mixed potential based sensor that measures directly catalyst conversion - A novel approach for catalyst on-board diagnostics.
Sensors and Actuators B: Chemical, vol. 217, pp. 158-164, doi: 10.1016/j.snb.2014.10.004 (2015)
G. Hagen, N. Leupold, S. Wiegärtner, J. Kita, R. Moos:
Neuartige Sensoranwendung zur Katalysator-Materialcharakterisierung.
12. Dresdner Sensor-Symposium, 07.-09.12., doi.org/10.5162/12dss2015/P7.5, Dresden, Deutschland (2015)
G. Hagen, N. Leupold, S. Wiegärtner, R. Moos:
Sensor Tool for Fast Catalyst Material Light-off Characterization.
CAPOC10: 10th International Congress on Catalysis and Automotive Pollution Control. 28.-30.10., Brussels, Belgien (2015)
G. Hagen, G. Rieß, F. Schubert, M. Feulner, A. Müller, D. Brüggemann, R. Moos:
Capacitive Soot Sensor.
In: Procedia Engineering - Eurosensors XXIX, pp. 241-244, doi:10.1016/j.proeng.2015.08.590, Freiburg (Deutschland), September (2015)
F. Schubert, S. Wollenhaupt, J. Kita, G. Hagen, R. Moos:
Switching-Type Lambda Sensor Manufactured by Joining of Sintered Zirconia via Glass Solder Paste.
Sensor 2015: Proceedings of the 17th International Conference on Sensors and Measurement Technology, pp. 842 - 844 doi: 10.5162/sensor2015/E8.4, Nürnberg, May (2015)
S. Wiegärtner, G. Hagen, J. Kita, M. Hien, P. Grass, R. Moos:
Thermoelectric hydrocarbon sensor in thick-film technology for on-board-diagnostics of a diesel oxidation catalyst.
Sensors and Actuators B: Chemical, vol. 214, pp. 234-240, doi: 10.1016/j.snb.2015.02.083 (2015)

-- 2014 --
G. Hagen, A. Müller, M. Feulner, A. Schott, C. Zöllner, D. Brüggemann, R. Moos:
Determination of the Soot Mass by Conductometric Soot Sensors.
In: EUROSENSORS 2014 - the 28th European Conference on Solid-State Transducers, vol. 87, pp. 244-247, doi:10.1016/j.proeng.2014.11.646, Brescia (Italy), September (2014)

-- 2013 --
J. Ante, G. Hagen, M. Hien, R. Moos, D. Schönauer-Kamin:
Gassensorelement und Verwendung desselben.
Patent, DE 102013217466 (2013)
G. Beulertz, M. Fritsch, G. Fischerauer, F. Herbst, J. Gieshoff, M. Votsmeier, G. Hagen, R. Moos:
Microwave Cavity Perturbation as a Tool for Laboratory In Situ Measurement of the Oxidation State of Three Way Catalysts.
Topics in Catalysis, Vol. 56, Issue 1–8, pp. 405–409, doi: 10.1007/s11244‐013‐9987‐3, May (2013)
M. Feulner, G. Hagen, A. Piontkowski, A. Müller, G. Fischerauer, D. Brüggemann, R. Moos:
In-Operation Monitoring of the Soot Load of Diesel Particulate Filters: Initial Tests.
Topics in Catalysis, Vol. 56, Issue 1–8, pp. 483–488, doi: 10.1007/s11244‐013‐0002‐9, May (2013)
R. Moos, G. Beulertz, S. Reiß, G. Hagen, G. Fischerauer, M. Votsmeier, J. Gieshoff:
Overview: Status of the Microwave-Based Automotive Catalyst State Diagnosis.
Topics in Catalysis, Vol. 56, Issue 1–8, pp. 358–364, doi: 10.1007/s11244‐013‐9980‐x, May (2013)

-- 2011 --
A. Fischerauer, G. Fischerauer, G. Hagen, R. Moos:
Integrated impedance based hydrocarbon gas sensors with Na-zeolite / Cr2O3 thin-film interfaces: From physical modeling to devices.
Phys. Stat. Sol., Vol. 208, Issue 2, S. 404–415, Feb. (2011)
G. Hagen, A. Piontkowski, A. Müller, D. Brüggemann, R. Moos:
Locally resolved in‐situ detection of the soot loading in diesel particulate filters.
IEEE SENSORS 2011 Conference, pp. 1021‐1023, doi: 10.1109/ICSENS.2011.6126979, Limerick Ireland, October (2011)
S. Reiß, D. Schönauer-Kamin, G. Hagen, G. Fischerauer, R. Moos:
Monitoring the ammonia loading of zeolite-based ammonia SCR catalysts by a microwave method.
Chemical Engineering & Technology, 34, 791-796 (2011)
S. Reiß, M. Spörl, G. Hagen, G. Fischerauer, R. Moos:
Combination of wirebound and microwave measurements for in-situ characterization of automotive three-way catalysts.
IEEE Sensors Journal, 11, 434-438 (2011)

-- 2010 --
S. Achmann, G. Hagen, M. Hämmerle, I.M. Malkowsky, C. Kiener, R. Moos:
Sulfur Removal from Low-Sulfur Gasoline and Diesel Fuel by Metal-Organic Frameworks..
Chemical Engineering & Technology, 33, pp. 275-280 (2010)
G. Hagen, C. Feistkorn, S. Wiegärtner, A. Heinrich, D. Brüggemann, R. Moos:
Conductometric Soot Sensor for Automotive Exhausts: Initial Studies.
in Sensors 2010: Nr. 4, pp. 1589-1598; doi:10.3390/s100301589, März (2010)

-- 2009 --
R. Moos, G. Hagen:
Neue Wege in der Abgasnachbehandlung.
Powerworld(03), S. 6 - 9 (2009)

-- 2008 --
A. Fischerauer, A. Gollwitzer, F. Thalmayr, G. Hagen, R. Moos, G. Fischerauer:
An Initial Physics-Based Model for the Impedance Spectrum of a Hydrocarbon Sensor with a Zeolite/Cr2O3 Interface.
Sensor Letters, Vol. 6, No. 6, S. 1019–1022, Dez. (2008)
R. Moos, M. Spörl, G. Hagen, A. Gollwitzer, M. Wedemann, G. Fischerauer:
TWC: lambda control and OBD without lambda probe - an initial approach.
2008 SAE World Congress, April 14-17, Detroit, Michigan, USA, SAE paper 2008-01-0916 (2008)
R. Moos, M. Spörl, G. Hagen, A. Gollwitzer, M. Wedemann, G. Fischerauer:
TWC: lambda control and OBD without lambda probe - an initial approach.
2008 SAE World Congress, April 14-17, Detroit, Michigan, USA, SAE paper 2008-01-0916 (2008)
S. Reiß, G. Hagen, R. Moos:
Zeolite Based Gas Sensor Device for Hydrocarbon Detection.
Proceedings Eurosensors XXII, Dresden, 7.-10.9.2008, ISBN 978-3-00-025218-1, T3-04.34, p. 379 (2008)
M. Spörl, M. Wedemann, G. Hagen, A. Gollwitzer, R. Moos, G. Fischerauer:
In-Situ Monitoring of Automotive Catalysts by the Cavity-Perturbation Method.
Proceedings Eurosensors XXII, Dresden, 7.-10.9.2008, ISBN 978-3-00-025218-1, T2C/1, p. 287 (2008)
M. Wedemann, S. Reiß, M. Spörl, G. Hagen, G. Fischerauer, R. Moos:
Three-Way Catalyst Washcoat for Air-to-Fuel Ratio Sensing.
Proceedings Eurosensors XXII, Dresden, 7.-10.9.2008, ISBN 978-3-00-025218-1, M2-11.03, p. 175 (2008)

-- 2007 --
A. Fischerauer, A. Gollwitzer, F. Thalmayr, G. Hagen, R. Moos, G. Fischerauer:
An initial physics-based model for the impedance spectrum of a hydrocarbon sensor with a zeolite/Cr2O3 interface.
Proc. 7th East Asian Conf. on Chemical Sensors (EACCS'07), Singapur, S. 22, 3.–5. Dez. (2007)
A. Fischerauer, A. Gollwitzer, F. Thalmayr, G. Hagen, R. Moos, G. Fischerauer:
Modellierung des Impedanzspektrums eines Kohlenwasserstoffsensors mit einer Zeolith-Cr2O3-Grenzfläche.
Tagungsband 8. Dresdner Sensor-Symposium, Dresden (= Dresdner Beiträge zur Sensorik, Bd. 29), S. 165–168, 10.–12. Dez. (2007)

-- 2006 --
G. Hagen, A. Dubbe, G. Fischerauer, R. Moos:
Thick-film impedance based hydrocarbon detection based on chromium(III) oxide / zeolite interfaces.
Sensors and Actuators B, 118, pp. 73-77 (2006)
G. Hagen, A. Dubbe, F. Rettig, A. Jerger, T. Birkhofer, R. Müller, C. Plog, R. Moos:
Selective impedance based gas sensors for hydrocarbons using ZSM-5 zeolite films with chromium (III) oxide interface.
Sensors and Actuators B, 119, pp. 441-448 (2006)

-- 2005 --
G. Hagen, A. Dubbe, G. Fischerauer, R. Moos:
Zeolith-Cr2O3-Grenzflächen als Kohlenwasserstoff-Gassensoren.
Tagungsband 9. Dresdner Sensor-Symposium, Dresden (= Dresdner Beiträge zur Sensorik, Bd. 24), Dresden, S. 295-298, 12.-14. Dez. (2005)

Publications from other divisions

G. Hagen, J. Kita, R. Moos, W. Reitmeier, D. Schönauer-Kamin, S. Wiegärtner:
Sensor zur Detektion oxidierbarer Gase.
Patent, DE 102013217465 (2013)