Changes in microstructure, phases, and hydrogen storage characteristics of metal hydro-borate and nickel-added magnesium hydride with hydrogen absorption and release reactions

2017 ◽  
Vol 42 (2) ◽  
pp. 1018-1026 ◽  
Author(s):  
Young Jun Kwak ◽  
Hye Ryoung Park ◽  
Myoung Youp Song
Keyword(s):  
Hydrogen Storage ◽  
Hydrogen Absorption ◽  
Magnesium Hydride ◽  
Storage Characteristics

Doping with Metal and Compound to Improve the Properties of Hydrogen Storage of MgH2

2014 ◽  
Vol 1015 ◽  
pp. 606-609
Author(s):  
Yan Wang ◽  
Shi Wei Wu ◽  
Tian Le Li ◽  
Shen Shen Li ◽  
Zhong Qiu Cao
Keyword(s):  
High Temperature ◽  
Hydrogen Storage ◽  
Transition Metal Oxides ◽  
Hydrogen Absorption ◽  
Magnesium Hydride ◽  
Hydrogen Storage Materials ◽  
High Hydrogen ◽  
Practical Applications ◽  
Hydrogen Capacity ◽  
Advantages And Disadvantages

Recently, Magnesium hydride MgH2is one of the attractive hydrogen storage materials because it reaches a high hydrogen capacity. However, the reaction kinetics is too slow and needs high temperature for progressing hydrogen absorption and desorption reactions, which hinders the process of practical applications and it is necessary to improve the hydrogen storage propesties. In this paper, most used or under research methods (Doping with metal and compound) of improving on the hydrogen storage of magnesium hydride are reviewed, in particular to elements substitution, addition of transition metal oxides or fluorine and so on. The advantages and disadvantages of vaious methods of improving on the hydrogen storage of magnesium hydride are compared. The trend of the methods of improving is also introduced.

Highly efficient bimetal synergetic catalysis by a multi-wall carbon nanotube supported palladium and nickel catalyst for the hydrogen storage of magnesium hydride

2014 ◽  
Vol 50 (50) ◽  
pp. 6641-6644 ◽  
Author(s):  
Jianguang Yuan ◽  
Yunfeng Zhu ◽  
Liquan Li
Keyword(s):  
Carbon Nanotube ◽  
Hydrogen Storage ◽  
Nickel Catalyst ◽  
Hydrogen Absorption ◽  
Hydrogen Desorption ◽  
Magnesium Hydride ◽  
Highly Efficient ◽  
Supported Palladium ◽  
Multi Wall Carbon Nanotube

PdNi/MWCNTs efficiently catalyze magnesium hydride prepared by HCS + MM with the following excellent properties: hydrogen absorption – 6.44 wt% within 100 s at 373 K and hydrogen desorption – 6.41 wt% within 1800 s at 523 K.

The Effects of Sn Element on Hydrogen Storage Characteristics of Mg2-xSnxNi(x=0, 0.05, 0.1, 0.15, 0.2) Alloys

2006 ◽  
Vol 971 ◽  
Author(s):  
Jin Guo ◽  
Cunke Huang ◽  
Kun Yang ◽  
Guangxu Li ◽  
Weiqing Jiang
Keyword(s):  
Hydrogen Storage ◽  
Discharge Capacity ◽  
Hydrogen Absorption ◽  
Main Phase ◽  
Partial Substitution ◽  
Electrochemical Characteristics ◽  
Hydrogen Storage Alloys ◽  
Ni Alloy ◽  
Suitable Amount ◽  
Storage Characteristics

ABSTRACTMg2-xSnxNi (x=0, 0.05, 0.1, 0.15, 0.2) hydrogen storage alloys were prepared and the effects of substitution of Sn for Mg on hydrogen storage performances of the alloys were investigated. In the alloys, Mg2Ni is main phase and the amorphous degree increases gradually with amount of Sn content increasing. Partial substitution of Sn for Mg can change the temperature of hydrogen absorption reaction effectively. The Mg1.85Sn0.15Ni alloy absorbs hydrogen at about 330K which is about 80K lower than that of Mg2Ni alloy. Discharge capacity increases quickly with amount of substitution Sn for Mg increasing. Suitable amount of substitution of Sn for Mg and amorphous can improve the thermodynamic and electrochemical characteristics of hydrogen absorption reaction for Mg2Ni-based alloy.

Effect of Ti Intermetallic Catalysts on Hydrogen Storage Properties of Magnesium Hydride

2013 ◽  
Vol 117 (25) ◽  
pp. 12973-12980 ◽  
Author(s):  
Chengshang Zhou ◽  
Zhigang Zak Fang ◽  
Chai Ren ◽  
Jingzhu Li ◽  
Jun Lu
Keyword(s):  
Hydrogen Storage ◽  
Magnesium Hydride ◽  
Hydrogen Storage Properties ◽  
Storage Properties

Microstructure and Hydrogen Storage Characteristics of Rhodium Substituted Ti-V-Cr Alloys

JOM ◽  
2021 ◽  
Author(s):  
Jimoh Mohammed Abdul ◽  
Sharafadeen Kunle Kolawole ◽  
Ganiyat Abiodun Salawu
Keyword(s):  
Hydrogen Storage ◽  
Storage Characteristics
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