scholarly journals Structural Effects of Amines in Enhancing Methanesulfonic Acid-Driven New Particle Formation

2020 ◽  
Vol 54 (21) ◽  
pp. 13498-13508
Author(s):  
Jiewen Shen ◽  
Jonas Elm ◽  
Hong-Bin Xie ◽  
Jingwen Chen ◽  
Junfeng Niu ◽  
...  
Keyword(s):  
Methanesulfonic Acid ◽  
Particle Formation ◽  
New Particle Formation ◽  
Structural Effects

scholarly journals The Role of Oxalic Acid in New Particle Formation from Methanesulfonic Acid, Methylamine, and Water

2017 ◽  
Vol 51 (4) ◽  
pp. 2124-2130 ◽  
Author(s):  
Kristine D. Arquero ◽  
R. Benny Gerber ◽  
Barbara J. Finlayson-Pitts
Keyword(s):  
Oxalic Acid ◽  
Methanesulfonic Acid ◽  
Particle Formation ◽  
New Particle Formation

scholarly journals The Role of Organic Acids in New Particle Formation from Methanesulfonic Acid and Methylamine

2021 ◽  
Author(s):  
Rongjie Zhang ◽  
Jiewen Shen ◽  
Hong-Bin Xie ◽  
Jingwen Chen ◽  
Jonas Elm
Keyword(s):  
Organic Acids ◽  
Cluster Formation ◽  
Methanesulfonic Acid ◽  
Particle Formation ◽  
Structural Factors ◽  
Atmospheric Conditions ◽  
New Particle Formation ◽  
Free Energies ◽  
Limited Temperature

Abstract. Atmospheric organic acids (OAs) are expected to enhance methanesulfonic acid (MSA)-driven new particle formation (NPF). However, the exact role of OAs in MSA-driven NPF remains unclear. Here, we employed a two-step strategy to probe the role of OAs in MSA-methylamine (MA) NPF. Initially, we evaluated the enhancing potential of 12 commonly detected OAs in ternary MA-MSA-OA cluster formation by considering the formation free energies of the (MSA)1(MA)1(OA)1 clusters and the atmospheric concentrations of the OAs. It was found that formic acid (ForA) has the highest potential to stabilize the MA-MSA clusters. The high enhancing potential of ForA results from its acidity, structural factors such as no intramolecular H-bonds and high atmospheric abundance. The second step is to extend the MSA-MA-ForA system to larger cluster sizes. The results indicate that ForA can indeed enhance MSA-MA NPF at atmospheric conditions (the upper limited temperature is 258.15 K), indicating that ForA might have an important role in MSA-driven NPF. The enhancing effect of ForA is mainly caused by an increased formation of the (MSA)2(MA)1 cluster, which is involved in the pathway of binary MSA-MA nucleation. Hence, our results indicate that OAs might be required to facilitate MSA-driven NPF in the atmosphere.

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

2019 ◽  
Vol 53 (24) ◽  
pp. 14387-14397 ◽  
Author(s):  
Jiewen Shen ◽  
Hong-Bin Xie ◽  
Jonas Elm ◽  
Fangfang Ma ◽  
Jingwen Chen ◽  
...  
Keyword(s):  
Computational Study ◽  
Methanesulfonic Acid ◽  
Particle Formation ◽  
New Particle Formation

scholarly journals New particle formation and growth from methanesulfonic acid, trimethylamine and water

2015 ◽  
Vol 17 (20) ◽  
pp. 13699-13709 ◽  
Author(s):  
Haihan Chen ◽  
Michael J. Ezell ◽  
Kristine D. Arquero ◽  
Mychel E. Varner ◽  
Matthew L. Dawson ◽  
...  
Keyword(s):  
Methanesulfonic Acid ◽  
Particle Formation ◽  
New Particle Formation ◽  
Particle Formation And Growth

Water participates in the formation of initial clusters to enhance particle formation from methanesulfonic acid and trimethylamine.

scholarly journals Chemical characterization of atmospheric ions at the High Altitude Research Station Jungfraujoch (Switzerland)

2016 ◽  
Author(s):  
Carla Frege ◽  
Federico Bianchi ◽  
Ugo Molteni ◽  
Jasmin Tröstl ◽  
Heikki Junninen ◽  
...  
Keyword(s):  
Sulfuric Acid ◽  
High Altitude ◽  
Methanesulfonic Acid ◽  
Particle Formation ◽  
Back Trajectory ◽  
Research Station ◽  
New Particle Formation ◽  
Night Time ◽  
Negative Spectrum ◽  
Air Masses

Abstract. The ion composition at high-altitude (3450 m a.s.l.) was measured with an Atmospheric Pressure interface Time of Flight mass spectrometer (APi-TOF) during a period of nine months. The negative mass spectra were dominated by the ions of sulfuric, nitric, malonic and methanesulfonic acid (MSA) as well as SO5−. The most prominent positive ion peaks were from amines. The other cations were mainly organic compounds clustered with a nitrogen-containing ion, which could be either NH4+ or an aminium. Occasionally the positive spectra were characterized by groups of compounds each differing by a methylene group. In the negative spectrum, sulfuric acid was always observed during clear sky conditions following the diurnal cycle of sun irradiation. We also measured many events during night time where the signal of sulfuric acid was high and clusters up to the tetramer were observed. A plausible reason for these events could be evaporation from particles at low relative humidity. A remarkably strong correlation between the signals of SO5− and CH3SO3− was observed for the full measurement period. The presence of these two ions during both the day and the night suggests a non-photochemical channel of formation which is possibly linked to halogen chemistry. Halogenated species, especially Br− and IO3−, were frequently observed in air masses that originated mainly from the Atlantic Ocean and occasionally from continental areas based on back trajectory analyses. We measured I2O5 clustered with an ion, a species that was proposed from laboratory and modelling studies. All halogenated species exhibited an unexpected diurnal behaviour with low values during day time. New particle formation (NPF) events were observed and characterized by 1) highly oxygenated molecules (HOMs) and low sulfuric acid or 2) ammonia-sulfuric acid clusters. We present characteristic spectra for each of these two event types based on 26 nucleation episodes. The mass spectrum of the ammonia-sulfuric acid nucleation event compares very well with laboratory measurements reported from the CLOUD chamber. A source receptor analysis indicates that new particle formation events at the Jungfraujoch take place within a restricted period of time of 24–48 hours after air masses have had contact with boundary layer. This time frame appears to be crucial to reach an optimal oxidation state and concentration of organic molecules necessary to facilitate nucleation.

scholarly journals Correction: New particle formation and growth from methanesulfonic acid, trimethylamine and water

2017 ◽  
Vol 19 (6) ◽  
pp. 4893-4893 ◽  
Author(s):  
Haihan Chen ◽  
Michael J. Ezell ◽  
Kristine D. Arquero ◽  
Mychel E. Varner ◽  
Matthew L. Dawson ◽  
...  
Keyword(s):  
Methanesulfonic Acid ◽  
Chem Phys ◽  
Particle Formation ◽  
New Particle Formation ◽  
Particle Formation And Growth ◽  
Phys Chem Chem Phys

Correction for ‘New particle formation and growth from methanesulfonic acid, trimethylamine and water’ by Haihan Chen et al., Phys. Chem. Chem. Phys., 2015, 17, 13699–13709.

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