Photo of Hanna Vehkamäki
  • PL 64 (Gustaf Hällströmin katu 2)

    00014

    Finland

1994 …2020
If you made any changes in Pure these will be visible here soon.

Publications 1994 2020

2020

Atomistic Simulation of Ice Nucleation on Silver Iodide (0001) Surfaces with Defects

Vahabpour Roudsari, G., Reischl, B., Pakarinen, O. H. & Vehkamäki, H., 9 Jan 2020, In : Journal of Physical Chemistry C. 124, 1, p. 436-445 10 p.

Research output: Contribution to journalArticleScientificpeer-review

Configurational Sampling of Noncovalent (Atmospheric) Molecular Clusters: Sulfuric Acid and Guanidine

Kubecka, J., Besel, V., Kurten, T., Myllys, N. & Vehkamäki, H., 18 Jul 2019, In : Journal of Physical Chemistry A. 123, 28, p. 6022-6033 12 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File

How well can we predict cluster fragmentation inside a mass spectrometer?

Passananti, M., Zapadinsky, E., Zanca, T., Kangasluoma, J., Myllys, N., Rissanen, M. P., Kurtén, T., Ehn, M., Attoui, M. & Vehkamäki, H., 25 May 2019, In : Chemical Communications. 55, 42, p. 5946-5949 4 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File

Ion Mobility-Mass Spectrometry of Iodine Pentoxide-Iodic Acid Hybrid Cluster Anions in Dry and Humidified Atmospheres

Ahonen, L., Li, C., Kubecka, J., Iyer, S., Vehkamäki, H., Petäjä, T., Kulmala, M. & Hogan, C. J., 18 Apr 2019, In : Journal of Physical Chemistry Letters. 10, 8, p. 1935-1941 13 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File

Methanesulfonic Acid-driven New Particle Formation Enhanced by Monoethanolamine: A Computational Study

Shen, J., Xie, H-B., Elm, J., Ma, F., Chen, J. & Vehkamaki, H., 17 Dec 2019, In : Environmental Science & Technology. 53, 24, p. 14387-14397 11 p.

Research output: Contribution to journalArticleScientificpeer-review

Modeling on Fragmentation of Clusters inside a Mass Spectrometer

Zapadinsky, E., Passananti, M., Myllys, N., Kurten, T. & Vehkamäki, H., 17 Jan 2019, In : Journal of Physical Chemistry A. 123, 2, p. 611-624 14 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File

Piperazine Enhancing Sulfuric Acid Based New Particle Formation: Implications for the Atmospheric Fate of Piperazine

Ma, F., Xie, H-B., Elm, J., Chen, J. & Vehkamäki, H., 2019, In : Environmental Science & Technology. 53, p. 8785-8795

Research output: Contribution to journalArticleScientificpeer-review

Rate enhancement in collisions of sulfuric acid molecules due to long-range intermolecular forces

Halonen, R., Zapadinsky, E., Kurtén, T., Vehkamäki, H. & Reischl, B., 30 Oct 2019, In : Atmospheric Chemistry and Physics. 19, 20, p. 13355-13366 12 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File

The role of highly oxygenated organic molecules in the Boreal aerosol-cloud-climate system

Roldin, P., Ehn, M., Kurten, T., Olenius, T., Rissanen, M. P., Sarnela, N., Elm, J., Rantala, P., Hao, L., Hyttinen, N., Heikkinen, L., Worsnop, D., Pichelstorfer, L., Xavier, C., Clusius, P., Öström, E., Petäjä, T., Kulmala, M., Vehkamäki, H., Virtanen, A. & 2 others, Riipinen, I. & Boy, M., 25 Sep 2019, In : Nature Communications. 10, 15 p., 4370.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File

Unexpected quenching effect on new particle formation from the atmospheric reaction of methanol with SO3

Liu, L., Zhong, J., Vehkamäki, H., Kurten, T., Du, L., Zhang, X., Francisco, J. S. & Zeng, X. C., 10 Dec 2019, In : Proceedings of the National Academy of Sciences of the United States of America. 116, 50, p. 24966-24971 6 p.

Research output: Contribution to journalArticleScientificpeer-review

2018

An Exploratory Study of the Learning of Transferable Skills in a Research-Oriented Intensive Course in Atmospheric Sciences

Ruuskanen, T., Vehkamäki, H., Riuttanen, L. & Lauri, A., 1 May 2018, In : Sustainability. 10, 5, 20 p., 1385.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File

Clustering mechanism of oxocarboxylic acids involving hydration reaction: Implications for the atmospheric models

Liu, L., Kupiainen-Maatta, O., Zhang, H., Li, H., Zhong, J., Kurten, T., Vehkamaki, H., Zhang, S., Zhang, Y., Ge, M., Zhang, X. & Li, Z., 7 Jun 2018, In : Journal of Chemical Physics. 148, 21, 10 p., 214303.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File

Deviation from equilibrium conditions in molecular dynamic simulations of homogeneous nucleation

Halonen, R., Zapadinsky, E. & Vehkamaki, H., 28 Apr 2018, In : Journal of Chemical Physics. 148, 16, 8 p., 164508.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File

Guanidine: A Highly Efficient Stabilizer in Atmospheric New-Particle Formation

Myllys, N., Ponkkonen, T., Passananti, M., Elm, J., Vehkamäki, H. & Olenius, T., 24 May 2018, In : Journal of Physical Chemistry A. 122, 20, p. 4717–4729 25 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File

New Parameterizations for Neutral and Ion-Induced Sulfuric Acid-Water Particle Formation in Nucleation and Kinetic Regimes

Määttänen, A., Merikanto, J., Henschel, H., Duplissy, J., Makkonen, R., Ortega, I. K. & Vehkamäki, H., 27 Jan 2018, In : Journal of Geophysical Research : Atmospheres. 123, 2, p. 1269-1296 28 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File

Self-Catalytic Reaction of SO3 and NH3 To Produce Sulfamic Acid and Its Implication to Atmospheric Particle Formation

Li, H., Zhong, J., Vehkamäki, H., Kurtén, T., Wang, W., Ge, M., Zhang, S., Li, Z., Zhang, X., Francisco, J. S. & Zeng, X. C., 5 Sep 2018, In : Journal of the American Chemical Society. 140, 35, p. 11020-11028 9 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File
2017

Atmospheric Fate of Monoethanolamine: Enhancing New Particle Formation of Sulfuric Acid as an Important Removal Process

Xie, H-B., Elm, J., Halonen, R., Myllys, N., Kurten, T., Kulmala, M. & Vehkamäki, H., 1 Aug 2017, In : Environmental Science & Technology. 51, 15, p. 8422-8431 10 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File

Diamines Can Initiate New Particle Formation in the Atmosphere

Elm, J., Passananti, M., Kurten, T. & Vehkamäki, H., 17 Aug 2017, In : Journal of Physical Chemistry A. 121, 32, p. 6155-6164 10 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File

Effect of Bisulfate, Ammonia, and Ammonium on the Clustering of Organic Acids and Sulfuric Acid

Myllys, N. L. P., Olenius, T. M., Kurten, T. C., Vehkamäki, H. T. K., Riipinen, I. & Elm, J., 6 Jun 2017, In : Journal of Physical Chemistry A. 121, 25, p. 4812–4824 13 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File

Formation of atmospheric molecular clusters consisting of sulfuric acid and C8H12O6 tricarboxylic acid

Elm, J., Myllys, N., Olenius, T., Halonen, R., Kurten, T. & Vehkamäki, H., 14 Feb 2017, In : Physical Chemistry Chemical Physics. 19, 6, p. 4877-4886 10 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File

New particle formation from sulfuric acid and amines: Comparison of monomethylamine, dimethylamine, and trimethylamine

Olenius, T., Halonen, R., Kurten, T., Henschel, H., Kupiainen-Määttä, O., Ortega, I. K., Jen, C. N., Vehkamäki, H. & Riipinen, I., 16 Jul 2017, In : Journal of Geophysical Research : Atmospheres. 122, 13, p. 7103-7118 16 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File

Pedagogical aspects and provision of transferable skills on short multidisciplinary research-intensive courses

Lauri, A. J., Ruuskanen, T. M., Riuttanen, L. I., Vehkamäki, H. T. K. & Kulmala, M. T., 2017, Proceedings of the 3rd Pan-Eurasian Experiment (PEEX) Science Conference and the 7th PEEX Meeting. Lappalainen, H. K., Haapanala, P., Borisova, A., Chalov, S., Kasimov, N., Zilitinkevich, S. & Kulmala, M. (eds.). Helsinki: Finnish Association for Aerosol Research FAAR, p. 244-246 3 p. (Report Series in Aerosol Science; no. 201).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Open Access
2016

A Closure Study of the Reaction between Sulfur Dioxide and the Sulfate Radical Ion from First-Principles Molecular Dynamics Simulations

Tsona Tchinda, N., Bork, N. C., Loukonen, V. A. & Vehkamäki, H. T. K., 29 Jan 2016, In : Journal of Physical Chemistry A. 120, 7, p. 1046-1050 5 p.

Research output: Contribution to journalArticleScientificpeer-review

Can Highly Oxidized Organics Contribute to Atmospheric New Particle Formation?

Ortega, I. K., Donahue, N. M., Kurten, T., Kulmala, M., Focsa, C. & Vehkamaki, H., 10 Mar 2016, In : Journal of Physical Chemistry A. 120, 9, p. 1452-1458 7 p.

Research output: Contribution to journalArticleScientificpeer-review

Computational Study on the Effect of Hydration on New Particle Formation in the Sulfuric Acid/Ammonia and Sulfuric Acid/Dimethylamine Systems

Henschel, H., Kurten, T. & Vehkamäki, H., 24 Mar 2016, In : Journal of Physical Chemistry A. 120, 11, p. 1886-1896 11 p.

Research output: Contribution to journalArticleScientificpeer-review

Coupled Cluster Evaluation of the Stability of Atmospheric Acid-Base Clusters with up to 10 Molecules

Myllys, N., Elm, J., Halonen, R., Kurten, T. & Vehkamäki, H., 4 Feb 2016, In : Journal of Physical Chemistry A. 120, 4, p. 621-630 10 p.

Research output: Contribution to journalArticleScientificpeer-review

Effect of Conformers on Free Energies of Atmospheric Complexes

Partanen, L., Vehkamäki, H., Hansen, K., Elm, J., Henschel, H., Kurten, T., Halonen, R. & Zapadinsky, E., 4 Oct 2016, In : Journal of Physical Chemistry A. 120, 43, p. 8613-8624 12 p.

Research output: Contribution to journalArticleScientificpeer-review

Effect of ions on sulfuric acid-water binary particle formation: 1. Theory for kinetic- and nucleation-type particle formation and atmospheric implications

Merikanto, J., Duplissy, J., Määttänen, A., Henschel, H., Donahue, N. M., Brus, D., Schobesberger, S., Kulmala, M. & Vehkamäki, H., 27 Feb 2016, In : Journal of Geophysical Research : Atmospheres. 121, 4, p. 1736-1751 16 p.

Research output: Contribution to journalArticleScientificpeer-review

Effect of ions on sulfuric acid-water binary particle formation: 2. Experimental data and comparison with QC-normalized classical nucleation theory

Duplissy, J., Merikanto, J., Franchin, A., Tsagkogeorgas, G., Kangasluoma, J., Wimmer, D., Vuollekoski, H., Schobesberger, S., Lehtipalo, K., Flagan, R. C., Brus, D., Donahue, N. M., Vehkamäki, H., Almeida, J., Amorim, A., Barmet, P., Bianchi, F., Breitenlechner, M., Dunne, E. M., Guida, R. & 28 others, Henschel, H., Junninen, H., Kirkby, J., Kürten, A., Kupc, A., Määttänen, A., Makhmutov, V., Mathot, S., Nieminen, T., Onnela, A., Praplan, A. P., Riccobono, F., Rondo, L., Steiner, G., Tome, A., Walther, H., Baltensperger, U., Carslaw, K. S., Dommen, J., Hansel, A., Petäjä, T., Sipilä, M., Stratmann, F., Vrtala, A., Wagner, P. E., Worsnop, D. R., Curtius, J. & Kulmala, M., 27 Feb 2016, In : Journal of Geophysical Research : Atmospheres. 121, 4, p. 1752-1775 24 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File

Growth of atmospheric clusters involving cluster-cluster collisions: comparison of different growth rate methods

Kontkanen, J., Olenius, T., Lehtipalo, K., Vehkamäki, H., Kulmala, M. & Lehtinen, K. E. J., 2016, In : Atmospheric Chemistry and Physics. 16, 9, p. 5545-5560 16 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File

Heterogeneous Nucleation onto Ions and Neutralized Ions: Insights into Sign-Preference

Kangasluoma, J., Samodurov, A., Attoui, M., Franchin, A., Junninen, H., Korhonen, F., Kurten, T., Vehkamaki, H., Sipilä, M., Lehtipalo, K., Worsnop, D. R., Petäjä, T. & Kulmala, M., 7 Apr 2016, In : Journal of Physical Chemistry C. 120, 13, p. 7444-7450 7 p.

Research output: Contribution to journalArticleScientificpeer-review

Implementation of state-of-the-art ternary new-particle formation scheme to the regional chemical transport model PMCAMx-UF in Europe

Baranizadeh, E., Murphy, B. N., Julin, J., Falahat, S., Reddington, C. L., Arola, A., Ahlm, L., Mikkonen, S., Fountoukis, C., Patoulias, D., Minikin, A., Hamburger, T., Laaksonen, A., Pandis, S. N., Vehkamäki, H., Lehtinen, K. E. J. & Riipinen, I., 22 Aug 2016, In : Geoscientific Model Development. 9, 8, p. 2741-2754 14 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File

Molecular-scale evidence of aerosol particle formation via sequential addition of HIO3

Sipilä, M., Sarnela, N., Jokinen, T., Henschel, H., Junninen, H., Kontkanen, J., Richters, S., Kangasluoma, J., Franchin, A., Peräkylä, O., Rissanen, M. P., Ehn, M., Vehkamäki, H., Kurten, T., Berndt, T., Petäjä, T., Worsnop, D., Ceburnis, D., Kerminen, V-M., Kulmala, M. & 1 others, O'Dowd, C., 22 Sep 2016, In : Nature. 537, 7621, p. 532-534 3 p.

Research output: Contribution to journalArticleScientificpeer-review

Strong Hydrogen Bonded Molecular Interactions between Atmospheric Diamines and Sulfuric Acid

Elm, J., Jen, C. N., Kurten, T. & Vehkamäki, H., 26 May 2016, In : Journal of Physical Chemistry A. 120, 20, p. 3693-3700 8 p.

Research output: Contribution to journalArticleScientificpeer-review

The effect of acid-base clustering and ions on the growth of atmospheric nano-particles

Lehtipalo, K., Rondo, L., Kontkanen, J., Schobesberger, S., Jokinen, T., Sarnela, N., Kuerten, A., Ehrhart, S., Franchin, A., Nieminen, T., Riccobono, F., Sipilä, M., Yli-Juuti, T., Duplissy, J., Adamov, A., Ahlm, L., Almeida, J., Amorim, A., Bianchi, F., Breitenlechner, M. & 49 others, Dommen, J., Downard, A. J., Dunne, E. M., Flagan, R. C., Guida, R., Hakala, J., Hansel, A., Jud, W., Kangasluoma, J., Kerminen, V-M., Keskinen, H., Kim, J., Kirkby, J., Kupc, A., Kupiainen-Määttä, O., Laaksonen, A., Lawler, M. J., Leiminger, M., Mathot, S., Olenius, T., Ortega, I. K., Onnela, A., Petäjä, T., Praplan, A., Rissanen, M. P., Ruuskanen, T., Santos, F. D., Schallhart, S., Schnitzhofer, R., Simon, M., Smith, J. N., Trostl, J., Tsagkogeorgas, G., Tome, A., Vaattovaara, P., Vehkamäki, H., Vrtala, A. E., Wagner, P. E., Williamson, C., Wimmer, D., Winkler, P. M., Virtanen, A., Donahue, N. M., Carslaw, K. S., Baltensperger, U., Riipinen, I., Curtius, J., Worsnop, D. R. & Kulmala, M., May 2016, In : Nature Communications. 7, 9 p., 11594.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File

The Effect of Water and Bases on the Clustering of a Cyclohexene Autoxidation Product C6H8O7 with Sulfuric Acid

Elm, J., Myllys, N., Luy, J-N., Kurten, T. & Vehkamäki, H., 14 Apr 2016, In : Journal of Physical Chemistry A. 120, 14, p. 2240-2249 10 p.

Research output: Contribution to journalArticleScientificpeer-review

The legacy of Finnish-Estonian air ion and aerosol workshops

Kulmala, M., Horrak, U., Manninen, H. E., Mirme, S., Noppel, M., Lehtipalo, K., Junninen, H., Vehkamäki, H., Kerminen, V-M., Noe, S. M. & Tammet, H., 23 May 2016, In : Boreal Environment Research. 21, 3-4, p. 181-206 26 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File
2015

Comment on 'Enhancement in the production of nucleating clusters due to dimethylamine and large uncertainties in the thermochemistry of amine-enhanced nucleation' by Nadykto et al., Chem. Phys. Lett. 609 (2014) 42-49

Kupiainen-Maatta, O., Henschel, H., Kurten, T., Loukonen, V., Olenius, T., Paasonen, P. & Vehkamaki, H., 16 Mar 2015, In : Chemical Physics Letters. 624, p. 107-110 4 p.

Research output: Contribution to journalArticleScientificpeer-review

Exploring the chemical fate of the sulfate radical anion by reaction with sulfur dioxide in the gas phase

Tsona Tchinda, N., Bork, N. & Vehkamaki, H., 2015, In : Atmospheric Chemistry and Physics. 15, 1, p. 495-503 9 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File

Extrapolating particle concentration along the size axis in the nanometer size range requires discrete rate equations

Olenius, T., Kupiainen-Määttä, O., Lehtinen, K. E. J. & Vehkamaki, H., Dec 2015, In : Journal of Aerosol Science. 90, p. 1-13 13 p.

Research output: Contribution to journalArticleScientificpeer-review

Female natural scientists sharing lunch and light

Vehkamäki, H. T. K. & Wähälä, K., 2015, In : Kemiauutiset ChemistryNEws. 2015, p. 75 1 p.

Research output: Contribution to journalArticleGeneral public

Open Access

Investigating the growth of atmospheric molecular clusters based on appearance times and collision-evaporation fluxes

Kontkanen, J., Olenius, T. M., Lehtipalo, K., Vehkamäki, H. T. K. & Kulmala, M. T., 2015, Proceedings of the NOSA-FAAR Symposium 2015. Leskinen, A. & Kontkanen, J. (eds.). Helsinki: Finnish Association for Aerosol Research, p. 64 1 p. (Report Series in Aerosol Science; no. 165).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Structures, Hydration, and Electrical Mobilities of Bisulfate Ion−Sulfuric Acid−Ammonia/Dimethylamine Clusters: A Computational Study

Tsona Tchinda, N., Henschel, H., Bork, N. C., Loukonen, V. A. & Vehkamäki, H. T. K., 2015, In : Journal of Physical Chemistry A. 17, 119, p. 9670−9679 10 p.

Research output: Contribution to journalArticleScientificpeer-review

The charging of neutral dimethylamine and dimethylamine-sulfuric acid clusters using protonated acetone

Ruusuvuori, K., Hietala, P., Kupiainen-Maatta, O., Jokinen, T., Junninen, H., Sipila, M., Kurten, T. & Vehkamaki, H., 2015, In : Atmospheric Measurement Techniques. 8, 6, p. 2577-2588 12 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File
2014

Clustering with bases likely enhances sulfuric acid detection by CIMS

Kupiainen-Määttä, O., Olenius, T., Kurten, T. C. & Vehkamäki, H., 2014, Proceedings of the International Aerosol Conference 2014.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Critical cluster size cannot be determined by slope analysis

Olenius, T., Kupiainen-Määttä, O. & Vehkamäki, H., 2014, Unknown host publication.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Critical cluster size cannot be solved by slope analysis

Kupiainen-Määttä, O., Olenius, T. & Vehkamäki, H., 2014, Unknown host publication.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Critical cluster size cannot in practice be determined by slope analysis in atmospherically relevant applications

Kupiainen-Määttä, O., Olenius, T., Korhonen, H., Malila, J., Dal Maso, M., Lehtinen, K. & Vehkamäki, H., 16 Jul 2014, In : Journal of Aerosol Science. 77, p. 127-144 17 p.

Research output: Contribution to journalArticleScientificpeer-review

Effect of Hydration and Base Contaminants on Sulfuric Acid Diffusion Measurement: A Computational Study

Olenius, T., Kurtén, T., Kupiainen-Määttä, O., Henschel, H., Ortega, I. K. & Vehkamäki, H., 2014, In : Aerosol Science and Technology. 48, 6, p. 593-603 11 p.

Research output: Contribution to journalArticleScientificpeer-review