scholarly journals Negative-ion implanter for powders and its application to nanometer-sized metal particle formation in the surface of glass beads

2000 ◽  
Vol 71 (2) ◽  
pp. 804-806 ◽  
Author(s):  
Hiroshi Tsuji ◽  
Shunsuke Kido ◽  
Hitoshi Sasaki ◽  
Yasuhito Gotoh ◽  
Junzo Ishikawa
Keyword(s):  
Metal Particle ◽  
Particle Formation ◽  
Glass Beads ◽  
Negative Ion

AFM tip-induced metal particle formation on laser-structured and on unstructured surfaces of solid-state ion conductors

2013 ◽  
Vol 234 ◽  
pp. 46-50 ◽  
Author(s):  
Julia Kruempelmann ◽  
Hendrik Reinhardt ◽  
Chihiro Yada ◽  
Fabio Rosciano ◽  
Norbert Hampp ◽  
...  
Keyword(s):  
Solid State ◽  
Metal Particle ◽  
Particle Formation ◽  
Ion Conductors

Ultrafine Metal Particle Formation in Reverse Micellar Systems:  Effects of Intermicellar Exchange on the Formation of Particles

Langmuir ◽  
1996 ◽  
Vol 12 (11) ◽  
pp. 2670-2678 ◽  
Author(s):  
Upendra Natarajan ◽  
Kalyan Handique ◽  
Anurag Mehra ◽  
Jayesh R. Bellare ◽  
Kartic C. Khilar
Keyword(s):  
Metal Particle ◽  
Particle Formation ◽  
Micellar Systems ◽  
Ultrafine Metal ◽  
Reverse Micellar Systems ◽  
Reverse Micellar

scholarly journals Wintertime subarctic new particle formation from Kola Peninsula sulfur emissions

2021 ◽  
Vol 21 (23) ◽  
pp. 17559-17576
Author(s):  
Mikko Sipilä ◽  
Nina Sarnela ◽  
Kimmo Neitola ◽  
Totti Laitinen ◽  
Deniz Kemppainen ◽  
...  
Keyword(s):  
Sulfuric Acid ◽  
Kola Peninsula ◽  
Cloud Condensation Nuclei ◽  
Particle Formation ◽  
Negative Ion ◽  
The Arctic ◽  
Size Distributions ◽  
New Particle Formation ◽  
So2 Emissions ◽  
Finnish Lapland

Abstract. The metallurgical industry in the Kola Peninsula, north-west Russia, form, after Norilsk, Siberia, the second largest source of air pollution in the Arctic and subarctic domain. Sulfur dioxide (SO2) emissions from the ore smelters are transported to wide areas, including Finnish Lapland. We performed investigations on concentrations of SO2, aerosol precursor vapours, aerosol and ion cluster size distributions together with chemical composition measurements of freshly formed clusters at the SMEAR I station in Finnish Lapland relatively close (∼ 300 km) to the Kola Peninsula industrial sites during the winter 2019–2020. We show that highly concentrated SO2 from smelter emissions is converted to sulfuric acid (H2SO4) in sufficient concentrations to drive new particle formation hundreds of kilometres downwind from the emission sources, even at very low solar radiation intensities. Observed new particle formation is primarily initiated by H2SO4–ammonia (negative-)ion-induced nucleation. Particle growth to cloud condensation nuclei (CCN) sizes was concluded to result from sulfuric acid condensation. However, air mass advection had a large role in modifying aerosol size distributions, and other growth mechanisms and condensation of other compounds cannot be fully excluded. Our results demonstrate the dominance of SO2 emissions in controlling wintertime aerosol and CCN concentrations in the subarctic region with a heavily polluting industry.

IgG1 Aggregation and Particle Formation Induced by Silicone–water Interfaces on Siliconized Borosilicate Glass Beads: A Model for Siliconized Primary Containers

2013 ◽  
Vol 102 (3) ◽  
pp. 852-865 ◽  
Author(s):  
Pinaki Basu ◽  
Sampathkumarkrishnan ◽  
Renuka Thirumangalathu ◽  
Theodore W. Randolph ◽  
John F. Carpenter
Keyword(s):  
Borosilicate Glass ◽  
Particle Formation ◽  
Glass Beads

Influence of Precursor Salt on Metal Particle Formation in Rh/CeO2 Catalysts

2001 ◽  
Vol 197 (1) ◽  
pp. 192-199 ◽  
Author(s):  
C Force ◽  
J.P Belzunegui ◽  
J Sanz ◽  
A Martı́nez-Arias ◽  
J Soria
Keyword(s):  
Metal Particle ◽  
Particle Formation

scholarly journals Wintertime sub-arctic new particle formation from Kola Peninsula sulphur emissions

2021 ◽  
Author(s):  
Mikko Sipilä ◽  
Nina Sarnela ◽  
Kimmo Neitola ◽  
Totti Laitinen ◽  
Deniz Kemppainen ◽  
...  
Keyword(s):  
Kola Peninsula ◽  
Sulphuric Acid ◽  
Cloud Condensation Nuclei ◽  
Particle Formation ◽  
Negative Ion ◽  
The Arctic ◽  
Size Distributions ◽  
New Particle Formation ◽  
So2 Emissions ◽  
Finnish Lapland

Abstract. Metallurgical industry in Kola peninsula, North-West Russia, form a second largest source of air pollution in the Arctic and sub-Arctic domain. Sulphur dioxide emissions from the ore smelters are transported to wide areas including Finnish Lapland. We performed investigations on concentrations of SO2 and aerosol precursor vapours, aerosol and ion cluster size distributions together with chemical composition measurements of freshly formed clusters at SMEAR I station in Finnish Lapland relatively close (~300 km) to Kola peninsula industrial sites during winter 2019–2020. We show that highly concentrated SO2 from smelter emissions is converted to sulphuric acid (H2SO4) with sufficient concentrations to drive new particle formation hundreds of kilometres downwind of the emission sources even with very low solar radiation intensities. Observed new particle formation is primarily initiated by H2SO4 – ammonia (negative-) ion induced nucleation. Particle growth to cloud condensation nuclei (CCN) sizes was concluded to result from sulphuric acid condensation. However, airmass advection had a large role in modifying aerosol size distributions and other growth mechanisms cannot be fully excluded. Our results demonstrate the dominance of SO2 emissions in controlling winter-time aerosol and CCN concentrations in the subarctic region with heavily polluting industry.

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