Cheng, Yafang; Su, Hang; Koop, Thomas ; Mikhailov, Eugene; Pöschl, Ulrich: Size dependence of phase transitions in aerosol nanoparticles. In: Nature Communications. Jg.6 H. 1. 2015
Inhalt
- Thermodynamic properties of supersaturated nanodroplets
- Figure™1Hygroscopic growth, deliquescence and efflorescence of nanoparticles.(a,b) Hygroscopic growth curves of sodium chloride (NaCl) and ammonium sulphate (AS). Growth factor data are taken from HTDMA experiments8,9 for particles with dry diameters of 6
- Discussion
- Figure™2Concentration-dependent thermodynamic properties of ammonium sulphate solution.(a,b) Water activity (aw, on a mole fraction basis) and liquid-vapour interfacial energy (sgrlv) are plotted against solute molality (b) and mass fraction (xs). The DKA
- Figure™3Homogeneous nucleation rate as a function of solute molality.(a) Sodium chloride (NaCl) and (b) ammonium sulphate (AS). The nucleation rates (ohgr) are calculated from solute activity (thick lines) and concentration (thin dashed lines) at selected
- Figure™4Liquid-solid equilibrium phase diagrams for the ammonium sulphate--water system.(a) 3D phase diagrams in the coordinates of inverse diameter 1solDs, temperature T and ammonium sulphate (AS) mass fraction xs. The solid circles represent the availab
- Methods
- Figure™5Dependence of critical diameter on bulk phase transition temperature.Inverse critical diameters of liquefaction at 298thinspK (Ds,c-1) are plotted against bulk phase transition temperatures (Tbulk) for aqueous ammonium sulphate (AS, blue solid cir
- MartinS. T.Phase transitions of aqueous atmospheric particlesChem. Rev.100340334542000KoopT.BookholdJ.ShiraiwaM.PoschlU.Glass transition and phase state of organic compounds: dependency on molecular properties and implications for secondary organic aeroso
- This study was supported by the Max Planck Society (MPG), National Natural Science Foundation of China (41330635), &!QJ;the EU project PEGASOS (265148), Russian Foundation for Basic research (12-05-00620-à), and RC ’GeomodelCloseCurlyQuote of &!QJ;St Pete
- ACKNOWLEDGEMENTS
- Author contributions
- Additional information