scholarly journals Determination of the oxidation kinetics of high loaded CuO-based materials under suitable conditions for the Ca/Cu H2 production process

Fuel ◽  
2018 ◽  
Vol 219 ◽  
pp. 76-87 ◽  
Author(s):  
L. Díez-Martín ◽  
G. Grasa ◽  
R. Murillo ◽  
M. Martini ◽  
F. Gallucci ◽  
...  
Keyword(s):  
Production Process ◽  
Oxidation Kinetics ◽  
H2 Production ◽  
Kinetics Of

Theory of Doping in Studies of Defect Concentration and Transport Properties of Transition Metal Oxides and Sulphides

2015 ◽  
Vol 34 (5) ◽  
Author(s):  
Zbigniew Grzesik
Keyword(s):  
Transition Metal ◽  
Metal Oxides ◽  
Transition Metal Oxides ◽  
Oxidation Kinetics ◽  
Defect Formation ◽  
Defect Concentration ◽  
Defect Mobility ◽  
Enthalpy And Entropy ◽  
Kinetics Of

AbstractIn the present paper the theoretical basis and experimental verification of a method, enabling the calculation of defect concentration and their mobility in transition metal oxides and sulphides have been described. The idea of proposed method consists in determination of both these parameters in indirect way, i.e. in studying the influence of aliovalent metallic additions on the oxidation kinetics of a given metal (doping effect). It has been shown that from the results of oxidation kinetics of binary alloys, the enthalpy and entropy of defect formation and their migration can be calculated. These data, in turn, can be used for the calculation of defect concentration and defect mobility in pure, undoped oxides. Such a possibility has been illustrated on the example of nonstoichiometric nickel oxide, Ni

Oxidation kinetics of biodiesel from soybean mixed with synthetic antioxidants BHA, BHT and TBHQ: Determination of activation energy

2014 ◽  
Vol 127 ◽  
pp. 111-116 ◽  
Author(s):  
Dionisio Borsato ◽  
João Rafael de Moraes Cini ◽  
Hágata Cremasco da Silva ◽  
Rodolfo Lopes Coppo ◽  
Karina Gomes Angilelli ◽  
...  
Keyword(s):  
Activation Energy ◽  
Oxidation Kinetics ◽  
Synthetic Antioxidants ◽  
Kinetics Of

Determination of the oxidation kinetics of modifiedα-iron substrate: correlation between TGA and AES

2004 ◽  
Vol 36 (8) ◽  
pp. 1014-1017 ◽  
Author(s):  
J. L. Grosseau-Poussard ◽  
B. Panicaud ◽  
J. F. Dinhut ◽  
M. Lahaye ◽  
J. F. Silvain
Keyword(s):  
Oxidation Kinetics ◽  
Kinetics Of

scholarly journals A New Device for Characterisation of the Drainage Kinetics of Fibrous Suspensions Under Gravity

2014 ◽  
Vol 35 (4) ◽  
pp. 409-420
Author(s):  
Piotr Przybysz ◽  
Czesław Kuncewicz ◽  
František Rieger
Keyword(s):  
Production Process ◽  
Flow Resistance ◽  
Paper Production ◽  
New Device ◽  
Wire Screen ◽  
Drainage Rate ◽  
New Apparatus ◽  
Kinetics Of ◽  
Fibrous Suspension

Abstract Gravity dewatering of fibrous suspension is one of basic technological operations in paper production process. Although there are numerous methods to determine dewatering of such suspensions, none of them can measure undisturbed flow of removed water. In the paper the idea and design of a new apparatus for the determination of drainage rate of fibrous suspensions is presented. The apparatus differs from other known devices by minimisation of filtrate flow resistance in the outlet part of the equipment. In the second part of the paper measurements of the drainage rate have been presented. The flow resistance of the fluid through the bottom wire screen in the device was determined. The calculated flow resistance will be used in the developed model of dynamic drainage of fibrous suspensions, which will be discussed in our following paper (Przybysz et al., 2014).

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>

Determination of microbiological activity during the processing of frost damaged sugar beets

2014 ◽  
pp. 228-231 ◽  
Author(s):  
Maciej Wojtczak ◽  
Aneta Antczak-Chrobot ◽  
Edyta Chmal-Fudali ◽  
Agnieszka Papiewska
Keyword(s):  
Sugar Beet ◽  
Microbiological Activity ◽  
Microbiological Contamination ◽  
Sugar Beets ◽  
Bacterial Metabolites ◽  
Kinetics Of

The aim of the study is to evaluate the kinetics of the synthesis of dextran and other bacterial metabolites as markers of microbiological contamination of sugar beet.

Sign in / Sign up

Export Citation Format

Share Document