The mass accommodation coefficient of ammonia on water

Bongartz, A.; Schweighoefer, Silke; Roose, C.; Schurath, U.

doi:10.1007/bf01099917

Cited by 30 publications

(38 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…More recent determinations of a by Ponche et al [21], Bongartz et al [22], and Shi et al [9], used the same common approach of measuring the absorption rate of ammonia diluted in a carrier gas into a liquid jet of mono dispersed droplets. Results of these three investigations are in reasonable agreement when differences in temperature and measurement uncertainties are taken into account, as illustrated in Fig.…”

Section: Experimental Determination Of the Mass Accommodation Coefficmentioning

confidence: 99%

Fate of ammonia in the atmosphere?a review for applicability to hazardous releases

Renard

Calidonna

Henley³

2004

Journal of Hazardous Materials

138

View full text Add to dashboard Cite

Section: Experimental Determination Of the Mass Accommodation Coefficmentioning

confidence: 99%

Fate of ammonia in the atmosphere?a review for applicability to hazardous releases

Renard

Calidonna

Henley³

2004

Journal of Hazardous Materials

138

View full text Add to dashboard Cite

“…1 More recently, it has been invoked to explain uptake data [2][3][4] and we have reported the first direct experimental evidence for this complex using sum frequency generation ͑SFG͒. 5 SFG is a surface-specific technique for studying the interface between two centrosymmetric media, enabling a moleculespecific examination of interfaces and characterization of adsorbate structure on surfaces with high spectral resolution.…”

Section: Introductionmentioning

confidence: 99%

Sum frequency generation orientation analysis of molecular ammonia on the surface of concentrated solutions

Simonelli¹,

Shultz²

2000

The Journal of Chemical Physics

View full text Add to dashboard Cite

Articles you may be interested in "Up" versus "down" alignment and hydration structures of solutes at the air/water interface revealed by heterodyne-detected electronic sum frequency generation with classical molecular dynamics simulation Sum frequency generation surface spectra of ice, water, and acid solution investigated by an exciton model Sum and difference frequency generation as diagnostics for leaky eigenmodes in two-dimensional photonic crystal waveguides J. Appl. Phys. 99, 023105 (2006); 10.1063/1.2161415Time-resolved vibrational optical activity measurement by the infrared-visible sum-frequency-generation with circularly polarized infrared light Ammonia-water complexes have been detected with sum frequency generation ͑SFG͒ at the liquid/ vapor interface of concentrated ammonia solutions ͑0.3x NH 3 , xϭbulk mole fraction͒. SFG spectra taken with the ssp polarization combination ͑s-polarized sum frequency signal, s-polarized visible light, p-polarized infrared beam͒ are dominated by the N-H symmetric stretch ( 1 ) at 3312 cm Ϫ1 and a weaker deformation mode (2 4 ) at 3200 cm Ϫ1 . The dangling ͑free͒ OH peak due to water at 3700 cm Ϫ1 is suppressed at this concentration, indicating that water molecules are complexed through hydrogen bonds to ammonia at the interface. The polarization dependence of 1 indicates that the NH 3 C 3 molecular axis is tilted with respect to the surface normal by р38°. Variation of the antisymmetric stretch, 3 , sum frequency signal intensity with polarization restricts the lower limit for surface ammonia tilt angles such that 25°рр38°. Based on this orientation, the structure of the ammonia-water complex is discussed.

show abstract

“…[1][2][3][4][5] It is also required for various heterogeneous catalysis and other industrial applications. 5,6 There have been a number studies on the structure and dynamics of liquid-vapor interfaces of water-ammonia mixtures or on uptake of ammonia at aqueous surfaces using experimental [7][8][9][10][11][12][13][14][15][16][17][18] and theoretical 14,[19][20][21][22][23] means. We note, in particular, the early study of Rice et al 7 where a surface complex formation between ammonia and water molecules was proposed based on surface-tension data.…”

Section: Introductionmentioning

confidence: 99%

“…This was subsequently supported by the measurements and modeling of surface uptake of ammonia molecules into aerosol droplets. [8][9][10][11][12] Ogaswara et al 13 investigated the adsorption of ammonia molecules on an ice surface by using infrared reflection absorption spectroscopy and thermal-desorption spectroscopy. These authors reported the presence of surface bound states of ammonia molecules on ice surface.…”

Section: Introductionmentioning

confidence: 99%

Hydrogen bonded structure and dynamics of liquid-vapor interface of water-ammonia mixture: An ab initio molecular dynamics study

Chakraborty

Chandra

2011

The Journal of Chemical Physics

View full text Add to dashboard Cite

We have carried out ab initio molecular dynamics simulations of a liquid-vapor interfacial system consisting of a mixture of water and ammonia molecules. We have made a detailed analysis of the structural and dynamical properties of the bulk and interfacial regions of the mixture. Among structural properties, we have looked at the inhomogeneous density profiles of water and ammonia molecules, hydrogen bond distributions, orientational profiles, and also vibrational frequency distributions of bulk and interfacial molecules. It is found that the interfacial molecules show preference for specific orientations so as to form water-ammonia hydrogen bonds at the interface with ammonia as the acceptor. The structure of the system is also investigated in terms of inter-atomic voids present in the system. Among the dynamical properties, we have calculated the diffusion, orientational relaxation, hydrogen bond dynamics, and vibrational spectral diffusion in bulk and interfacial regions. It is found that the diffusion and orientation relaxation of the interfacial molecules are faster than those of the bulk. However, the hydrogen bond lifetimes are longer at the interface which can be correlated with the time scales found from the decay of frequency time correlations.

show abstract

The mass accommodation coefficient of ammonia on water

Cited by 30 publications

References 27 publications

Fate of ammonia in the atmosphere?a review for applicability to hazardous releases

Fate of ammonia in the atmosphere?a review for applicability to hazardous releases

Sum frequency generation orientation analysis of molecular ammonia on the surface of concentrated solutions

Hydrogen bonded structure and dynamics of liquid-vapor interface of water-ammonia mixture: An ab initio molecular dynamics study

Contact Info

Product

Resources

About