International Journal of Science and Research (IJSR)

International Journal of Science and Research (IJSR)
www.ijsr.net | Most Trusted Research Journal Since Year 2012

ISSN: 2319-7064



Research Paper | Chemistry Science | Morocco | Volume 3 Issue 7, July 2014

Mechanism and Kinetics of Hydrogen Diffusion in Some Zr(Cr1-x Fex)2 Laves phase

M. Boulghallat, A. Jouaiti, L. Lallam

A series of Zr (Cr1-x Fex) 2 alloys with x= 0.4, 0.6 and 0.75 were prepared the major phase in these alloys had C14 Laves phase type structure. Experiments were carried out in a microbalance with a high sensibility (2.10-6 g) at different supply pressures (0.05 to 1MPa) and absorption temperatures ( 20 to 70C) in a close system. The microthermogravimetry method was applied to interpret the experimental data and to compare with each other approach and its possibility were discussed. The maximum hydrogen storage capacity of these compounds varies between 2.5 to 2.85 (H/formula). Absorption-desorption kinetics of the hydrides was realized on a sample mass equal to 50mg in the aim to minimize the heat gradient. After activation period the kinetics were found to be fast and vary linearly with the pressure values. The reactions rate are controlled by nucleation and growth in the formation and by three-dimensional diffusion outside the grains in the decomposition. Activation energy values in the above-mentioned alloys were found respectively equal: Ea 44.3, 50.2 and 54.5KJ/mol.H2

Keywords: Laves phases, hydriding, dehydriding, activation, kinetic, mechanism, nucleation

Edition: Volume 3 Issue 7, July 2014

Pages: 1470 - 1474


How to Cite this Article?

M. Boulghallat, A. Jouaiti, L. Lallam, "Mechanism and Kinetics of Hydrogen Diffusion in Some Zr(Cr1-x Fex)2 Laves phase ", International Journal of Science and Research (IJSR), https://www.ijsr.net/search_index_results_paperid.php?id=20141261, Volume 3 Issue 7, July 2014, 1470 - 1474

26 PDF Views | 26 PDF Downloads

Download Article PDF



Similar Articles with Keyword 'Laves phases'

Research Paper, Chemistry Science, Morocco, Volume 3 Issue 6, June 2014

Pages: 2157 - 2161

Structure and Thermodynamic of Zr(Cr1-x Fex)2 Alloys Under Hydrogen Pressure

M.Boulghallat, A. Jouaiti, L.Lallaam, A. Barroug, D. Dafir

Share this article

Research Paper, Chemistry Science, Morocco, Volume 3 Issue 7, July 2014

Pages: 1470 - 1474

Mechanism and Kinetics of Hydrogen Diffusion in Some Zr(Cr1-x Fex)2 Laves phase

M. Boulghallat, A. Jouaiti, L. Lallam

Share this article



Similar Articles with Keyword 'hydriding'

Research Paper, Chemistry Science, Morocco, Volume 3 Issue 7, July 2014

Pages: 1470 - 1474

Mechanism and Kinetics of Hydrogen Diffusion in Some Zr(Cr1-x Fex)2 Laves phase

M. Boulghallat, A. Jouaiti, L. Lallam

Share this article

Research Paper, Chemistry Science, Morocco, Volume 4 Issue 1, January 2015

Pages: 463 - 468

Application of Theoretical Models to the Kinetic Study of the TiFe0,5Co0,5 ? H2 System

M. Boulghallat, A. Jouaiti, L. Lallam

Share this article



Similar Articles with Keyword 'activation'

Research Paper, Chemistry Science, India, Volume 4 Issue 2, February 2015

Pages: 2040 - 2044

Kinetics and Equilibrium Studies on the Removal of Direct Blue Dye Using Activated Carbon from Phyllanthus Reticulatus (Black Honey)

G. Kavitha, V. Venkateswaran

Share this article

Research Paper, Chemistry Science, Nigeria, Volume 3 Issue 6, June 2014

Pages: 2802 - 2807

Aqueous Phase Reductive Detoxification of Cr (VI) By Sodium Dithionite: Kinetics; Thermodynamics and Stoichiometric Studies

IORUNGWA M.S., WUANA R.A., YIASE S.G., TOR-ANYIIN T.A

Share this article

Research Paper, Chemistry Science, India, Volume 3 Issue 5, May 2014

Pages: 1865 - 1867

Study of Various Factors on Oxidation of p-Nitro Benzoic Acid Hydrazide - A Kinetic and Mechanistic Approach

A. S. Varale, Y. S. Varale

Share this article

Research Paper, Chemistry Science, India, Volume 3 Issue 10, October 2014

Pages: 797 - 801

Rapid Kinetics of Chlorination of Regioisomers of Nitrophenol by Molecular Chlorine in Aqueous Medium Using Rotating Platinum Electrode (RPE)

S. L. Bonde, R. P. Bhadane, V. T. Dangat, T. M. Sukul

Share this article

Research Paper, Chemistry Science, India, Volume 4 Issue 12, December 2015

Pages: 1062 - 1066

Kinetics and Mechanism of Oxidation of Some Substituted Phenol by Imidazolium Fluorochromate in Aqueous Acetic Acid

S N Hallale, S. B. Patwari, G G Mandawad

Share this article



Similar Articles with Keyword 'kinetic'

Research Paper, Chemistry Science, India, Volume 4 Issue 2, February 2015

Pages: 2040 - 2044

Kinetics and Equilibrium Studies on the Removal of Direct Blue Dye Using Activated Carbon from Phyllanthus Reticulatus (Black Honey)

G. Kavitha, V. Venkateswaran

Share this article

Research Paper, Chemistry Science, India, Volume 4 Issue 5, May 2015

Pages: 1968 - 1971

Removal of Basic Dye Rhodamine-B by Activated Carbon-MnO2-Nanocomposite and Activated Carbon-A Comparative Study

M. Santhi, P. E. Kumar

Share this article

Research Paper, Chemistry Science, India, Volume 6 Issue 6, June 2017

Pages: 2370 - 2376

Green Synthesis of ZnO Nanoparticles Using Sollanam Santhocarbom to Study Its Solarphotocatalytic Activity

Karthiga Rajendaran, Sudha Annamalai

Share this article

Research Paper, Chemistry Science, Iraq, Volume 6 Issue 8, August 2017

Pages: 1556 - 1563

Kinetics and Isotherm Studies of Crystal Violet Adsorption from Aqueous Solution using Tomato Seeds

Aeshah Jamal Al Timimiand, Elham M. AL-Rufaie

Share this article

Research Paper, Chemistry Science, Nigeria, Volume 3 Issue 6, June 2014

Pages: 2802 - 2807

Aqueous Phase Reductive Detoxification of Cr (VI) By Sodium Dithionite: Kinetics; Thermodynamics and Stoichiometric Studies

IORUNGWA M.S., WUANA R.A., YIASE S.G., TOR-ANYIIN T.A

Share this article



Similar Articles with Keyword 'mechanism'

Research Paper, Chemistry Science, Egypt, Volume 5 Issue 11, November 2016

Pages: 1501 - 1505

A New Electrochemical Sensor Based on TiO2 Nanoparticles Modified Carbon Paste Electrode for Voltammetric Determination of Phenol

M. Khodari, E. M. Rabie, H. F. Assaf

Share this article

Research Paper, Chemistry Science, India, Volume 3 Issue 5, May 2014

Pages: 1865 - 1867

Study of Various Factors on Oxidation of p-Nitro Benzoic Acid Hydrazide - A Kinetic and Mechanistic Approach

A. S. Varale, Y. S. Varale

Share this article

Research Paper, Chemistry Science, India, Volume 3 Issue 12, December 2014

Pages: 332 - 340

Synthesis of 1,4-bis (benzyloxy)Benzene Under Sonication and a Multi-Site Phase-Transfer Catalyst in Solid-Liquid Condition-Kinetic Aspects

Pachaiyappan Abimannan, Venugopal Rajendran

Share this article

Research Paper, Chemistry Science, India, Volume 4 Issue 12, December 2015

Pages: 1062 - 1066

Kinetics and Mechanism of Oxidation of Some Substituted Phenol by Imidazolium Fluorochromate in Aqueous Acetic Acid

S N Hallale, S. B. Patwari, G G Mandawad

Share this article

Research Paper, Chemistry Science, India, Volume 5 Issue 4, April 2016

Pages: 1203 - 1208

Kinetic Study of the Hydrolysis of p-Propoxy Aniline Phosphate Triester

Dr. Amit Chaudhary

Share this article
Top