Nils Hansen

Bio

Nils Hansen, the Principal Investigator of the Flame Chemistry and Diagnostics Laboratory at the Combustion Research Facility has long specialized in the development of the tools to elucidate the chemistry occurring in flames. As organizer of the international Workshop on Flame Chemistry series, he has been an important part of the validation efforts of chemically accurate models, and regularly hosts international collaborators. Spanning the range from ignition chemistry to the chemistry of soot and aromatic precursors, Dr. Hansen uses a highly sensitive molecular beam mass spectrometer and a tandem mass spectrometer to reveal important chemical pathways. As a facility scientist, he adapts these tools for use in plasma systems where they would provide much-needed validation of plasma chemistry reaction sets.

Research Interests

Interrogation of chemistries in reactive environments using high-resolution mass spectroscopy.

Selected Publications

 

Nils NMN Hansen, (2021). Isomer-Resolved Probing of Complex Systems of Reactions: Opportunities for Diagnostics Development Talk at University of Gttingen, Germany Document ID: 1329794

David Lewis Osborn, Bo Zhou, Erxiong Huang, Raybel Almeida, Sadi Gurses, Alexander Ungar, Johan Zetterberg, Ambarish Kulkarni, ColemanX. Kronawitter, Nils NMN Hansen, Jonathan H. Frank, BibekR. Samanta, Ravin Fernando, Daniel Roesch, Hanna Reisler, (2021). Imaging the Near-Surface Gas Phase: A New Approach to Coupled Gas-Surface Chemistry 40th Annual Gas Phase Chemical Physics Research PI Meeting Document ID: 1318271

Nils NMN Hansen, (2021). Ozone-initiated oxidation at extreme low-temperatures Combustion Webinar Document ID: 1307290

Julien Luc Manin, Nils NMN Hansen, Carl Magnus Goran Sjoberg, Tuan Minh Nguyen, Kevin Wan, Goutham Kukkadapu, Nick Killingsworth, William Pitz, (2021). Soot Modeling and Experiments FY21 Annual Merit Review Document ID: 1307127

Bo Zhou, Erxiong Huang, Raybel Almeida, Sadi Gurses, Alexander Ungar, Johan Zetterberg, Ambarish Kulkarni, Coleman Kronawitter, David Lewis Osborn, Nils NMN Hansen, Jonathan H. Frank, (2021). Near-Surface Imaging of the Multicomponent Gas Phase above a Silver Catalyst During Partial Oxidation of Methanol ACS Catalysis https://www.osti.gov/search/identifier:1772037 Document ID: 1280804

Nils NMN Hansen, SM Fritz, P Mishra, J Wullenkord, PG Fugazzi, K Kohse-Hinghaus, TS Zwier, (2020). Detection of Combustion Intermediates via Broadband Chirped-Pulse Microwave Spectroscopy International Symposium on Combustion https://www.osti.gov/search/identifier:1837345 Document ID: 1244776

Nils NMN Hansen, A Lucassen, K Moshammer, C Togbe, K Kohse-Hoinghaus, (2020). Formation of Oxygenated and Hydrocarbon Intermediates in Premixed Combustion of 2-Methylfuran Zeitschrift fr Physikalische Chemie https://www.osti.gov/search/identifier:1760452 Document ID: 154973

O Korobeinichev, I Gerasimov, D Knyazkov, A Shmakov, T Bolshova, Nils NMN Hansen, C Westbrook, G Dayma, B Yang, (2020). An Experimental and Kinetic Modeling Study of Premixed Laminar Flames of Methyl Pentanoate and Methyl Hexanoate Zeitschrift fr Physikalische Chemie https://www.osti.gov/search/identifier:1760453 Document ID: 154974

Nils NMN Hansen, G. Kukkadapu, B. Chen, S. Dong, HJ Curran, Craig A. Taatjes, AJ Eskola, DL Osborn, Leonid Sheps, WJ Pitz, K Moshammer, AW Jasper, W Chen, J Yang, WangZ, (2020). The impact of the third O2 addition reaction network on ignition delay times of neo-pentane International Sympsoium on Combustion https://www.osti.gov/search/identifier:1837149 Document ID: 1244770

Nils NMN Hansen, (2020). Exploring Combustion Processes in Laboratory-Scale Model Flames University of Hannover. https://www.osti.gov/search/identifier:1814699 Document ID: 343227

Nils NMN Hansen, (2020). From Precursors to Pollutants New Chemical Insights Into Soot Formation Processes University of Kiel Document ID: 343229

Zachary Buras, Nils NMN Hansen, Dario Lopez Pintor, Leonid Sheps, Craig A. Taatjes, (2020). Correlating Ignition Properties with Critical Species Concentrations ACS Fall 2020 Virtual Meeting & Expo https://www.osti.gov/search/identifier:1813284 Document ID: 1184194

Nils NMN Hansen, H Liao, H Liao, S Kang, F Zhang, B Yang, (2020). Influence of ozone addition on the low-temperature oxidation of dimethyl ether in a jet-stirred reactor Combustion and Flame https://www.osti.gov/search/identifier:1639059 Document ID: 1150649

Nils NMN Hansen, SA Skeen, BD Adamson, M Ahmed, (2020). Detection of Aliphatically Bridged Multi-Core Polycyclic Aromatic Hydrocarbons in Sooting Flames with Atmospheric-Sampling High-Resolution Tandem Mass Spectrometry Journal of Physical Chemistry A https://www.osti.gov/search/identifier:1639067 Document ID: 1150647

Nils NMN Hansen, M Baroncelli, Q Mao, S Galle, H Pitsch, (2020). Role of Ring-Enlargement Reactions in the Formation of Aromatic Hydrocarbons Phys. Chem. Chem. Phys. https://www.osti.gov/search/identifier:1639066 Document ID: 1055797

Nils NMN Hansen, (2020). Exploring Combustion Processes in Laboratory-Scale Model Flames University of Hannover Document ID: 343228

Nils NMN Hansen, Brian Adamson, Scott Skeen, Musahid Ahmed, (2020). Nucleation of Soot: Experimental Assessment of the Role of Polycyclic Aromatic Hydrocarbon (PAH) Dimers Zeitschrift fr Physikalische Chemie https://www.osti.gov/search/identifier:1668356 Document ID: 1127179

Nils NMN Hansen, S Schmitt, M Wick, C Wouters, L Ruwe, I Graf, J Andert, S Pischinger, (2019). Effects of water addition on the combustion of iso-octane investigated in laminar flames, low-temperature reactors, and an HCCI engine Combustion and Flame https://www.osti.gov/search/identifier:1581978 Document ID: 1055928

Zachary Buras, Dario Lopez Pintor, Nils NMN Hansen, Leonid Sheps, Craig A. Taatjes, (2019). Correlating phi-Sensitivity with Critical Species Measurements ACS National Meeting and Expo Document ID: 1044090

Nils NMN Hansen, Ahren Jasper, Kai Moshammer, (2019). Isomer-Selective Detection of Keto-Hydroperoxides in Low-Temperature Oxidation of Tetrahydrofuran Journal of Physical Chemistry A https://www.osti.gov/search/identifier:1570293 Document ID: 1009421

Nils(SNL) Hansen, HandongLiao, TaoTao, WenyuSun, ChungK.Law, BinYang, Nils NMN Hansen, (2019). Investigation on the low-temperature oxidation of n-butanal in a jet stirred reactor Document ID: 973329

Nils (SNL) Hansen, J.B. Randazzo R.S. Tranter, Nils NMN Hansen, (2019). Investigation of Sampling-Probe Distorted Temperature Fields with X-Ray Fluorescence Spectroscopy Proceedings of the Combustion Institute https://www.osti.gov/search/identifier:1570291 Document ID: 973330

Nils (SNL) Hansen, Ahren W. Jasper Aric C. Rousso, Nils NMN Hansen, (2019). Low-Temperature Kinetics of Ethylene Ozonolysis in a Jet-Stirred Reactor Journal of Physical Chemistry A Document ID: 973332

Nils NMN Hansen, Tao Tao, Shiqing Kang, Wenyu Sun, Jiaxing Wang, Handong Liao, Kai Moshammer, Chung K Law, Bin Yang, (2019). A further experimental and modeling study of acetaldehyde combustion kinetics Combustion and Flame https://www.osti.gov/search/identifier:1570289 Document ID: 973335

Nils NMN Hansen, David Lewis Osborn, Krupa Ramasesha, (2019). Advanced Mass Spectrometry And X-ray Diagnostics Gas Phase Chemical Physics Principal Investigators Meeting Document ID: 960345

Nils NMN Hansen, Habib N. Najm, David Lewis Osborn, Craig A. Taatjes, Judit Zador, (2019). Chemical Kinetics For Complex Systems Gas Phase Chemical Physics Principal Investigators Meeting Document ID: 960351

David Lewis Osborn, Jonathan H. Frank, Nils NMN Hansen, Ambarish Kulkarni, Coleman Kronawitter, Bruce Gates, (2019). Coupled Gas-Surface Chemistry: New Tools for Discovery Science Sandia/UC Davis Partnership Event https://www.osti.gov/search/identifier:1641664 Document ID: 998646

Nils NMN Hansen, (2019). The Chemistry of Soot Formation Physical Chemistry Colloquium in Honor of Prof. Wodtke https://www.osti.gov/search/identifier:1641127 Document ID: 985573

Nils NMN Hansen, (2019). The Criegee Intermediate Reaction Network in Ethylene Ozonolysis International Conference on Chemical Kinetics https://www.osti.gov/search/identifier:1640923 Document ID: 984353

Nils NMN Hansen, Lena Ruwe, Liming Cai, Kai Moshammer, Heinz Pitsch, (2019). The C5 chemistry preceding the formation of polycyclic aromatic hydrocarbons in a premixed 1 pentene flame Combustion and Flame https://www.osti.gov/search/identifier:1526228 Document ID: 960664

Nils NMN Hansen, Larisa Leon, Lena Ruwe, Kai Moshammer, Lars Seidel, Krishna Prasad Shrestha, Xiaoxiao Wang, F Mauss, (2019). Chemical insights into the larger sooting tendency of 2 methyl 2 butene compared to n-pentane Combustion and Flame https://www.osti.gov/search/identifier:1559481 Document ID: 961221

Nils NMN Hansen, (2019). Isomer-Resolved Probing of Complex Systems of Reactions. CU Boulder Document ID: 959987

Christopher Jesse Kliewer, David Lewis Osborn, Farid El Gabaly, Jonathan H. Frank, Nils NMN Hansen, Coleman Kronawitter, Ambarish Kulkarni, (2019). Imaging The Near-surface Gas Phase: A New Approach To Coupled Gas-surface Chemistry Gas Phase Chemical Physics Principal Investigators Meeting Document ID: 960330

Nils NMN Hansen, Wenyu Sun, Jiaxing Wang, Can Huang, Bin Yang, (2019). Experimental and kinetic modeling study of a low-pressure premixed flame fueled by diacetyl Combustion and Flame Document ID: 947621

Nils NMN Hansen, Rousso Aric, Ahren Jasper, Yiguang Ju, (2019). Identification of the Criegee intermediate reaction network in ethylene ozonolysis: Impact on energy conversion strategies and atmospheric chemistry Physical Chemistry Chemical Physics https://www.osti.gov/search/identifier:1499034 Document ID: 935709

Nils NMN Hansen, (2019). Isomer-Resolved Probing of Complex Systems of Reactions. Tsinghua University, Dalian Coherent Light Source, International Workshop on Gas-phase Kinetics in Interstellar, Atmospheric and Combustion Chemistry Document ID: 913351

Nils NMN Hansen, BingjieChen, HaoyiWang, JieHan ZhandongWang, AwadB.S.Alquaity, HengWang, S.ManiSarathy, (2019). Ion chemistry in premixed rich methane flames Combustion and Flame https://www.osti.gov/search/identifier:1492799 Document ID: 902382

Nils NMN Hansen, Brian David Adamson, Scott A. Skeen, MusahidAhmed, (2018). Towards a Chemical Understanding of the Formation of Polycyclic Aromatic Hydrocarbons in Combustion Environments Journal of Physical Chemistry A Document ID: 855112

Nils NMN Hansen, MartinaBaroncelli, DanielFelsmann, HeinzPitsch, (2018). Investigating the e ect of oxy-fuel combustion and light coal volatiles interaction: a mass spectrometric study Combustion and Flame https://www.osti.gov/search/identifier:1529296 Document ID: 855113

Nils NMN Hansen, LenaRuwe, KaiMoshammer, KatharinaKohseHinghaus, (2018). Influences of the molecular fuel structure on combustion reactions towards soot precursors in selected alkane and alkene flames Physical Chemistry Chemical Physics https://www.osti.gov/search/identifier:1474088 Document ID: 855114

Nils NMN Hansen, ZhandongWang, OlivierHerbinet, FrederiqueBattin-Leclerc, (2018). Exploring Hydroperoxides In Combustion: The History, Recent Advances And Perspectives Progress in Energy and Combustion Science https://www.osti.gov/search/identifier:1529295 Document ID: 855115

Kai Felix Moshammer, Ahren Jasper, D. popolan-Vaida, Z Wang, V Shankar, L Ruwe, Craig A. Taatjes, P Dagaut, Nils NMN Hansen, (2018). Quantification of the Keto-hydroperoxide (HOOCH2OCHO) and Other Elusive Intermediates during Low-Temperature Oxidation of Dimethyl Ether Journal of Physical Chemistry A https://www.osti.gov/search/identifier:1474086 Document ID: 476825

Nils NMN Hansen, Zhandong Wang, BingjieChen, KaiMoshammer, DenisiaM.Popolan-Vaida, SalimSioud, VijaiShankarBavaniShankar, David Vuilleumier, TaoTao, LenaRuwe, EikeBrauer, PhilippeDagaut, KatharinaKohse-Hinghaus, MisjudeenRaji, S.M.Sarathy, (2018). n-Heptane cool flame chemistry: unraveling intermediate species measured in a stirred reactor and motored engine Combustion and Flame https://www.osti.gov/search/identifier:1474083 Document ID: 854968

Isaac Wesley Ekoto, Nils NMN Hansen, Benjamin Wolk, William Northrop, Kai Moshammer, (2018). Tailoring Charge Reactivity Using In-Cylinder Generated Reformate for Gasoline Compression Ignition Strategies Journal Of Engineering For Gas Turbines And Power-transactions Of The Asme https://www.osti.gov/search/identifier:1469636 Document ID: 853972

Rebecca Louise Caravan, Tom Bannan, FrankAFWiniberg, MAnwarH Khan, Aric Rousso, Ahren Jasper, Stephen Klippenstein, Stephen Worrall, Asan Bacak, Paulo Artaxo, Joel Brito, StanleyP Sander, James Allan, Hugh Coe, David Lewis Osborn, Nils NMN Hansen, DudleyE Shallcross, Craig A. Taatjes, CarlJ Percival, (2018). The role of Criegee Intermediate + ROOH reactions towards secondary organic aerosol formation ? laboratory, modelling and field studies Atmospheric Chemical Mechanisms Conference Document ID: 853669

Rebecca Louise Caravan, Tom Bannan, FrankAFWiniberg, MAnwarH Khan, Aric Rousso, Ahren Jasper, Stephen Klippenstein, Stephen Worrall, Asan Bacak, Paulo Artaxo, Joel Brito, StanleyP Sander, James Allan, Hugh Coe, David Lewis Osborn, Nils NMN Hansen, DudleyE Shallcross, Craig A. Taatjes, CarlJ Percival, (2018). The potential role of Criegee Intermediate + ROOH reactions on secondary organic aerosol formation American Geophysical Union Fall Meeting 2018 Document ID: 842218

Nils NMN Hansen, (2018). Isomer-Resolved Probing of Complex Systems of Reactions Multi-functional Conversion of Chemical Species and Energy Document ID: 841285

Nils NMN Hansen, (2017). Isomer-Resolved Proving of Oxidation and Ignition Chemistry QUADMARTS, RWTH-Aachen, PTB Braunschweig https://www.osti.gov/search/identifier:1510917 Document ID: 725899

Nils NMN Hansen, Kai Moshammer, AhrenW. Jasper, (2017). Detection, Identification, and Quantification of Keto-Hydroperoxides in Low-Temperature Oxidation Journal of Physical Chemistry Letters https://www.osti.gov/search/identifier:1429817 Document ID: 659121

W. Sun, B Yang, Nils NMN Hansen, C Westbrook, F Zhang, G Wang, K Moshammer, C Law, (2016). An experimental and kinetic modeling study on dimethyl carbonate (DMC) pyrolysis and combustion Combustion and Flame https://www.osti.gov/search/identifier:1338385 Document ID: 565748

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