Pulse radiolysis of liquid ethanol: reaction kinetics of the radicals

1970 ◽  
Vol 48 (23) ◽  
pp. 3765-3768 ◽  
Author(s):  
J. W. Fletcher ◽  
P. J. Richards ◽  
W. A. Seddon
Keyword(s):  
Reaction Kinetics ◽  
Pulse Radiolysis ◽  
Alkaline Solutions ◽  
Present System ◽  
Subsequent Reaction ◽  
Rapid Equilibrium ◽  
Kinetics Of ◽  
Conjugate Base

In the pulse radiolysis of alkaline ethanol solutions the conjugate base CH3CHO− is not formed from the α-ethanol radical CH3CHOH, i.e.[Formula: see text]This is contrary to the observation in aqueous alkaline solutions of ethanol of a rapid equilibrium between CH3CHOH and CH3CHO−.The small quantity of CH3CHO− which is produced in the present system is consistent with the formation of the ethoxy radical CH3CH2O and its subsequent reaction with the ethoxide ion CH3CH2O−.

A pulse radiolysis study of trapped electrons in aqueous ethylene glycol glasses

1983 ◽  
Vol 61 (1) ◽  
pp. 189-193 ◽  
Author(s):  
Zhennan Wu ◽  
Norman V. Klassen ◽  
Hugh A. Gillis ◽  
George G. Teather
Keyword(s):  
Ethylene Glycol ◽  
Reaction Kinetics ◽  
Pulse Radiolysis ◽  
Trapped Electrons ◽  
Aqueous Ethylene Glycol ◽  
The Stability ◽  
Kinetics Of

The yield and reaction kinetics of trapped electrons, [Formula: see text] and [Formula: see text], in several ethylene glycol/D2O glasses have been studied from 6–72 K by pulse radiolysis. An increased D2O concentration is believed to increase the concentration of IR-traps thereby leading to a greater [Formula: see text] and to decrease the concentration of VIS-traps thereby increasing the stability of [Formula: see text]. The yield and stability of [Formula: see text] are also increased by lowering the temperature. A redetermination of [Formula: see text] (1.3 × 104 M−1 cm−1 at 1800 nm) confirms earlier values.

Impact Of Synthesis Route on the Water Oxidation Kinetics of Hematite Photoanodes

2020 ◽  
Author(s):  
Camilo A. Mesa ◽  
Ludmilla Steier ◽  
Benjamin Moss ◽  
Laia Francàs ◽  
James E. Thorne ◽  
...  
Keyword(s):  
Oxygen Vacancy ◽  
Reaction Kinetics ◽  
Water Oxidation ◽  
Oxidation Kinetics ◽  
Oxidation Reaction ◽  
Charge Accumulation ◽  
Optical Signals ◽  
Current Voltage ◽  
Voltage Performance ◽  
Kinetics Of

<p><i>Operando</i> spectroelectrochemical analysis is used to determine the water oxidation reaction kinetics for hematite photoanodes prepared using four different synthetic procedures. Whilst these photoanodes exhibit very different current / voltage performance, their underlying water oxidation kinetics are found to be almost invariant. Lower photoanode performance was found to correlate with the observation of optical signals indicative of charge accumulation in mid-gap oxygen vacancy states, indicating these states do not contribute directly to water oxidation.</p>

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