Pulse Radiolysis of Liquids at High Pressures. I. Absorption Spectrum of the Hydrated Electron at Pressures up to 6.3 kbar

1971 ◽  
Vol 55 (10) ◽  
pp. 4974-4979 ◽  
Author(s):  
Robert R. Hentz ◽  
Farhataziz ◽  
Earl M. Hansen
Keyword(s):  
Absorption Spectrum ◽  
Pulse Radiolysis ◽  
High Pressures ◽  
Hydrated Electron

A nanosecond pulse radiolysis study of the hydrated electron with high energy ions with a narrow velocity distribution

2004 ◽  
Vol 385 (1-2) ◽  
pp. 66-71 ◽  
Author(s):  
G. Baldacchino ◽  
G. Vigneron ◽  
J.-P. Renault ◽  
S. Pin ◽  
Z. Abedinzadeh ◽  
...  
Keyword(s):  
Velocity Distribution ◽  
Pulse Radiolysis ◽  
High Energy ◽  
Nanosecond Pulse ◽  
Hydrated Electron ◽  
High Energy Ions

Étude par radiolyse pulsée des propriétés spectrales et cinétiques de l'électron solvaté dans l'hexane-1,2,6-triol liquide

1995 ◽  
Vol 73 (1) ◽  
pp. 117-122 ◽  
Author(s):  
J.-P. Jay-Gerin ◽  
J. Chevrel ◽  
C. Ferradini ◽  
E. Ray ◽  
M.H. Klapper ◽  
...  
Keyword(s):  
Absorption Spectrum ◽  
Optical Absorption ◽  
Linear Accelerator ◽  
Pulse Radiolysis ◽  
Order Reaction ◽  
Kinetic Properties ◽  
Solvated Electron ◽  
Solvent Viscosity ◽  
First Order ◽  
Short Times

The optical absorption spectrum of the solvated electron (es−) in liquid hexane-1,2,6-triol has been measured by nanosecond pulse radiolysis at different temperatures (10–40 °C) to investigate the influence of high solvent viscosity values on the spectral and kinetic properties of es−. The wavelength at the absorption maximum, λmax, is equal to 560 nm, and its variation with temperature, if it exists in the considered zone, is less than the experimental error. At 20 °C and 150 ns, the value of the product [Formula: see text] of the yield of es− and the molar extinction coefficient at λmax is 2.55 × 104 molecule/(M cm 100 eV). In the context of this work, we have compared results obtained with both a linear accelerator and a Febetron, a comparison that has allowed us to evaluate the influence of variations of the dose per pulse and to extend measurements to short times. In the case of experiments performed with the linear accelerator, es− is found to decay at all wavelengths by a first-order reaction (or by a pseudo-first-order reaction) with an activation energy of ~45 kJ mol−1. By contrast, kinetic curves obtained with the Febetron seem to show a competition in which a second-order law is followed at short times. The fact that the shape of the spectra seems to vary as a function of the dose per pulse indicates the possible intervention of another species whose formation is favored by the use of high radiation doses. In other respects, the kinetics of electron solvation does not seem to be controlled by the viscosity of the solvent in our experimental conditions. Keywords: liquid hexane-1,2,6-triol, pulse radiolysis, linear accelerator and Febetron, solvated electron, optical absorption spectrum, kinetic properties, solvent viscosity, dose and temperature effects.

Pulse Radiolysis of Supercritical Water. 3. Spectrum and Thermodynamics of the Hydrated Electron

2005 ◽  
Vol 109 (7) ◽  
pp. 1299-1307 ◽  
Author(s):  
David M. Bartels ◽  
Kenji Takahashi ◽  
Jason A. Cline ◽  
Timothy W. Marin ◽  
Charles D. Jonah
Keyword(s):  
Supercritical Water ◽  
Pulse Radiolysis ◽  
Hydrated Electron

Hydrated electron decay measurements with picosecond pulse radiolysis at elevated temperatures up to 350°C

2006 ◽  
Vol 424 (1-3) ◽  
pp. 77-81 ◽  
Author(s):  
G. Baldacchino ◽  
V. De Waele ◽  
H. Monard ◽  
S. Sorgues ◽  
F. Gobert ◽  
...  
Keyword(s):  
Pulse Radiolysis ◽  
Elevated Temperatures ◽  
Picosecond Pulse ◽  
Hydrated Electron

Absorption Spectrum of Oxygen at High Pressures and the Existence of O4 Molecules

Nature ◽  
1934 ◽  
Vol 134 (3386) ◽  
pp. 463-463 ◽  
Author(s):  
H. SALOW ◽  
W. STEINER
Keyword(s):  
Absorption Spectrum ◽  
High Pressures
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