SURFACE-MODIFIED AB5 ALLOYS WITH ENHANCED HYDROGEN ABSORPTION KINETICS

2009 ◽  
pp. 625-636
Author(s):  
M. Williams ◽  
M. Lototsky ◽  
A. Nechaev ◽  
V. Linkov ◽  
V. Yartys ◽  
...  
Keyword(s):  
Hydrogen Absorption ◽  
Absorption Kinetics ◽  
Surface Modified

A co-precipitated Mg–Ti nano-composite with high capacity and rapid hydrogen absorption kinetics at room temperature

RSC Advances ◽  
2014 ◽  
Vol 4 (81) ◽  
pp. 42764-42771 ◽  
Author(s):  
Yana Liu ◽  
Jinxin Zou ◽  
Xiaoqin Zeng ◽  
Wenjiang Ding
Keyword(s):  
Hydrogen Absorption ◽  
Room Temperature ◽  
High Capacity ◽  
Absorption Kinetics ◽  
Nano Composite

A Mg–Ti nano-composite was co-precipitated through an adapted Rieke method, which exhibits high capacity and superior absorption kinetics at room temperature (∼6.2 wt% within 2 h).

Synthesis by High-Energy Ball Milling of MgH2-TiFe Composites for Hydrogen Storage

2017 ◽  
Vol 899 ◽  
pp. 13-18 ◽  
Author(s):  
Ricardo Mendes Leal Neto ◽  
Rafael de Araújo Silva ◽  
Ricardo Floriano ◽  
Graziele Cristina Seco Coutinho ◽  
Railson Bolsoni Falcão ◽  
...  
Keyword(s):  
Ball Milling ◽  
Hydrogen Absorption ◽  
Hydrogen Desorption ◽  
High Energy ◽  
Control Agent ◽  
High Energy Ball Milling ◽  
Absorption Kinetics ◽  
Particle Size Reduction ◽  
Milled Sample ◽  
Energy Ball

The aim of this work is to investigate the influence of some processes variables on the microstructure and hydrogen absorption kinetics of MgH2 - X wt.% TiFe composites. Samples were synthesized by high-energy ball milling in a planetary (X = 40, 50, 60) and shaker mill (X = 40) under high-purity argon atmosphere. Commercial MgH2 instead of Mg powder was used in order to reduce adherence on the vial and balls. TiFe powder was previously produced by ball milling a mixture of TiH2 and Fe powders followed by a reaction synthesis at 600oC. Milled composites samples were characterized by XRD and SEM analysis. Milling time was preliminary investigated (X = 40) in the planetary ball mill (6 to 36h). TiFe particle size reduction was shown to be difficult since they are surrounded by MgH2 matrix. Strong particle reduction was obtained by using a shaker mill only for 2 hours and adding cyclohexane as process control agent. No reaction between MgH2 and TiFe compound was observed in any milled sample. Hydrogen absorption kinetics measurements of the as-milled samples were conducted on an Sieverts' type apparatus at room temperature after hydrogen desorption at 350oC under vacuum. The best hydrogen kinetics (3 wt% at the first hour) was attained by the planetary milled sample (36 h). Higher hydrogen capacity was observed for the sample milled in the shaker mill (4.0 wt.%), but only after 13h.

scholarly journals Effect of NaH/MgB2 ratio on the hydrogen absorption kinetics of the system NaH + MgB2

2014 ◽  
Vol 39 (10) ◽  
pp. 5030-5036 ◽  
Author(s):  
Claudio Pistidda ◽  
Daphiny Pottmaier ◽  
Fahim Karimi ◽  
Sebastiano Garroni ◽  
Agnieszka Rzeszutek ◽  
...  
Keyword(s):  
Hydrogen Absorption ◽  
Absorption Kinetics ◽  
Kinetics Of

Hydrogen absorption kinetics of V–Al alloy

2012 ◽  
Vol 112 (1) ◽  
pp. 5-10 ◽  
Author(s):  
Sanjay Kumar ◽  
Manju Taxak ◽  
Nagaiyar Krishnamurthy
Keyword(s):  
Hydrogen Absorption ◽  
Al Alloy ◽  
Absorption Kinetics ◽  
Kinetics Of

Hydrogen Absorption Kinetics of Ti-Nb-Cr Alloys

2006 ◽  
pp. 534-537
Author(s):  
Kyung Shin ◽  
Song Seok ◽  
Soon Young Kweon ◽  
Il Ho Kim ◽  
Young Geun Lee ◽  
...  
Keyword(s):  
Hydrogen Absorption ◽  
Absorption Kinetics ◽  
Kinetics Of

Hydrogen Absorption Kinetics During Zircaloy Oxidation in Steam

2009 ◽  
pp. 80-80-18 ◽  
Author(s):  
D Charquet ◽  
P Rudling ◽  
M Mikes-Lindback ◽  
P Barberis
Keyword(s):  
Hydrogen Absorption ◽  
Absorption Kinetics

Hydrogen absorption kinetics in powdered V+80wt.% LaNi5 composite

2013 ◽  
Vol 580 ◽  
pp. S179-S182 ◽  
Author(s):  
Sanjay Kumar ◽  
Amit Tirpude ◽  
Manju Taxak ◽  
Nagaiyar Krishnamurthy
Keyword(s):  
Hydrogen Absorption ◽  
Absorption Kinetics
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