Temperature Effect on the Two-Dimensional Phase Transition Kinetics of Adenine Adsorbed at the Hg Electrode/Aqueous Solution Interface

2003 ◽  
Vol 68 (8) ◽  
pp. 1407-1419 ◽  
Author(s):  
Claudio Fontanesi ◽  
Roberto Andreoli ◽  
Luca Benedetti ◽  
Roberto Giovanardi ◽  
Paolo Ferrarini
Keyword(s):  
Phase Transition ◽  
Aqueous Solution ◽  
Phase Change ◽  
Temperature Effect ◽  
Transition Rate ◽  
Effect Of Temperature ◽  
Two Dimensional ◽  
Solution Interface ◽  
Phase Transition Kinetics ◽  
Kinetics Of

The kinetics of the liquid-like → solid-like 2D phase transition of adenine adsorbed at the Hg/aqueous solution interface is studied. Attention is focused on the effect of temperature on the rate of phase change; an increase in temperature is found to cause a decrease of transition rate.

Phase transition kinetics of Sb 2 Te 3 phase change thin films

2008 ◽  
Author(s):  
Fengxiao Zhai ◽  
Yang Wang ◽  
Yiqun Wu ◽  
Fuxi Gan
Keyword(s):  
Thin Films ◽  
Phase Transition ◽  
Phase Change ◽  
Phase Transition Kinetics ◽  
Kinetics Of

Adsorption Kinetics of a Hydrophobic−Hydrophilic Diblock Polyelectrolyte at the Solid−Aqueous Solution Interface:  A Slow Birth and Fast Growth Process

2000 ◽  
Vol 33 (16) ◽  
pp. 6051-6059 ◽  
Author(s):  
T. Abraham ◽  
S. Giasson ◽  
J. F. Gohy ◽  
R. Jérôme ◽  
B. Müller ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Adsorption Kinetics ◽  
Growth Process ◽  
Fast Growth ◽  
Solution Interface ◽  
Kinetics Of

Temperature Effect on Phase-Transition Radiation of Water

2014 ◽  
Vol 136 (6) ◽  
Author(s):  
M. Q. Brewster ◽  
K.-T. Wang ◽  
W.-H. Wu ◽  
M. G. Khan
Keyword(s):  
Phase Transition ◽  
Phase Change ◽  
Temperature Dependence ◽  
Transition Probability ◽  
Cloud Droplet ◽  
Radiation Absorption ◽  
Effect Of Temperature ◽  
Strong Temperature Dependence ◽  
Atmospheric Windows ◽  
Radiative Phase

Infrared radiation associated with vapor-liquid phase transition of water is investigated using a suspension of cloud droplets and mid-infrared (IR) (3–5 μm) radiation absorption measurements. Recent measurements and Monte Carlo (MC) modeling performed at 60 °C and 1 atm resulted in an interfacial radiative phase-transition probability of 5 × 10−8 and a corresponding surface absorption efficiency of 3–4%, depending on wavelength. In this paper, the measurements and modeling have been extended to 75 °C in order to examine the effect of temperature on water's liquid-vapor phase-change radiation. It was found that the temperature dependence of the previously proposed phase-change absorption theoretical framework by itself was insufficient to account for observed changes in radiation absorption without a change in cloud droplet number density. Therefore, the results suggest a strong temperature dependence of cloud condensation nuclei (CCN) concentration, i.e., CCN increasing approximately a factor of two from 60 °C to 75 °C at near saturation conditions. The new radiative phase-transition probability is decreased slightly to 3 × 10−8. Theoretical results were also calculated at 50 °C in an effort to understand behavior at conditions closer to atmospheric. The results suggest that accounting for multiple interface interactions within a single droplet at wavelengths in atmospheric windows (where anomalous IR radiation is often reported) will be important. Modeling also suggests that phase-change radiation will be most important at wavelengths of low volumetric absorption, i.e., atmospheric windows such as 3–5 μm and 8–10 μm, and for water droplets smaller than stable cloud droplet sizes (<20 μm diameter), where surface effects become relatively more important. This could include unactivated, hygroscopic aerosol particles (not CCN) that have absorbed water and are undergoing dynamic evaporation and condensation. This mechanism may be partly responsible for water vapor's IR continuum absorption in these atmospheric windows.

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