Multielement synergetic effect of NiFe2O4 and h-BN for improving the dehydrogenation properties of LiAlH4

2021 ◽  
Author(s):  
Sheng Wei ◽  
Shunshun Xue ◽  
Chaoshi Huang ◽  
Boyi Che ◽  
Huanzhi Zhang ◽  
...  
Keyword(s):  
Hydrogen Storage ◽  
Synergetic Effect ◽  
Hydrogen Economy ◽  
Promising Candidate ◽  
High Hydrogen ◽  
Effective Hydrogen

Effective hydrogen storage is one of the main unresolved challenges towards deploying the so-called hydrogen economy. LiAlH4 is considered a promising candidate for hydrogen storage due to its high hydrogen...

scholarly journals Hydrogen Storage and Transportation Technologies to Enable the Hydrogen Economy: Liquid Organic Hydrogen Carriers

2022 ◽  
Author(s):  
Emma Southall ◽  
Liliana Lukashuk
Keyword(s):  
Hydrogen Storage ◽  
Smooth Transition ◽  
Low Carbon ◽  
Hydrogen Economy ◽  
Advantages And Disadvantages ◽  
On Demand ◽  
Net Zero ◽  
Hydrogen Supply ◽  
Transportation Technologies ◽  
Effective Hydrogen

Reliable storage and transportation of hydrogen at scale is a challenge which needs to be tackled to allow a robust and on-demand hydrogen supply when moving towards a global low carbon hydrogen economy with the aim of meeting net-zero climate goals. Numerous technologies and options are currently being explored for effective hydrogen storage and transportation to facilitate a smooth transition to the hydrogen economy. This paper provides an overview of different hydrogen storage and transportation technologies, focusing in more detail on liquid organic hydrogen carriers (LOHCs), its advantages and disadvantages, and future considerations for the optimisation of the LOHC technology.

scholarly journals Ultrasonochemical-Assisted Synthesis of CuO Nanorods with High Hydrogen Storage Ability

2011 ◽  
Vol 2011 ◽  
pp. 1-6 ◽  
Author(s):  
Gang Xiao ◽  
Peng Gao ◽  
Longqiang Wang ◽  
Yujin Chen ◽  
Ying Wang ◽  
...  
Keyword(s):  
Hydrogen Storage ◽  
Ultrasound Irradiation ◽  
Bet Surface Area ◽  
Size Change ◽  
Promising Candidate ◽  
High Hydrogen ◽  
Electrochemical Hydrogen Storage ◽  
Hydrogen Storage Performance ◽  
Cuo Nanorods ◽  
Water Alcohol

Uniform CuO nanorods with different size have been synthesized in a water-alcohol solution through a fast and facile ultrasound irradiation assistant route. Especially, the as-prepared CuO nanorods have shown a strong size-induced enhancement of electrochemical hydrogen storage performance and exhibit a notable hydrogen storage capacity and big BET surface area. These results further implied that the as-prepared CuO nanorods could be a promising candidate for electrochemical hydrogen storage applications. The observation of the comparison experiments with different concentrations of NaOH, ethanol, CTAB, and HTMA while keeping other synthetic parameters unchanged leads to the morphology and size change of CuO products.

scholarly journals Metal hydride hydrogen storage and purification technologies

2021 ◽  
Vol 2039 (1) ◽  
pp. 012005
Author(s):  
D V Blinov ◽  
V I Borzenko ◽  
A V Bezdudny ◽  
A N Kazakov
Keyword(s):  
Hydrogen Storage ◽  
Metal Hydride ◽  
High Volume ◽  
Recovery Rates ◽  
High Hydrogen ◽  
Hydrogen Recovery ◽  
Hydride Hydrogen ◽  
Flow Through

Abstract The results of the development of metal hydride (MH) reactors for the storage and purification of hydrogen of various types are presented. Two methods of metal hydride purification of hydrogen are presented. The use of the MH method of flow-through purification of hydrogen has high hydrogen recovery rates at high volume contents of hydrogen in the mixture (⩾10% vol.), while the method of periodic evacuation of accumulated impurities is most effective at low hydrogen contents in the mixture (<10% vol.).

scholarly journals Improvement in Hydriding and Dehydriding Features of Mg–TaF5–VCl3 Alloy by Adding Ni and x wt% MgH2 (x = 1, 5, and 10) Together with TaF5 and VCl3

Micromachines ◽  
2021 ◽  
Vol 12 (10) ◽  
pp. 1194
Author(s):  
Young-Jun Kwak ◽  
Myoung-Youp Song
Keyword(s):  
Particle Size ◽  
Hydrogen Storage ◽  
Mechanical Milling ◽  
Storage Capacity ◽  
Reaction Rates ◽  
Cycling Performance ◽  
Hydrogen Storage Capacity ◽  
Effective Hydrogen

In our previous work, TaF5 and VCl3 were added to Mg, leading to the preparation of samples with good hydriding and dehydriding properties. In this work, Ni was added together with TaF5 and VCl3 to increase the reaction rates with hydrogen and the hydrogen-storage capacity of Mg. The addition of Ni together with TaF5 and VCl3 improved the hydriding and dehydriding properties of the TaF5 and VCl3-added Mg. MgH2 was also added with Ni, TaF5, and VCl3 and Mg-x wt% MgH2-1.25 wt% Ni-1.25 wt% TaF5-1.25 wt% VCl3 (x = 0, 1, 5, and 10) were prepared by reactive mechanical milling. The addition of MgH2 decreased the particle size, lowered the temperature at which hydrogen begins to release rapidly, and increased the hydriding and dehydriding rates for the first 5 min. Adding 1 and 5 wt% MgH2 increased the quantity of hydrogen absorbed for 60 min, Ha (60 min), and the quantity of hydrogen released for 60 min, Hd (60 min). The addition of MgH2 improved the hydriding–dehydriding cycling performance. Among the samples, the sample with x = 5 had the highest hydriding and dehydriding rates for the first 5 min and the best cycling performance, with an effective hydrogen-storage capacity of 6.65 wt%.

Hydrogen storage for mixed wind–nuclear power plants in the context of a Hydrogen Economy

2008 ◽  
Vol 33 (17) ◽  
pp. 4463-4475 ◽  
Author(s):  
Gregor Taljan ◽  
Michael Fowler ◽  
Claudio Cañizares ◽  
Gregor Verbič
Keyword(s):  
Hydrogen Storage ◽  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
Hydrogen Economy

Practical DMSO-promoted selective hydrolysis–oxidation of lignocellulosic biomass to formic acid attributed to hydrogen bonds

2021 ◽  
Author(s):  
Yan-Jun Guo ◽  
Shi-Jun Li ◽  
Yuanli Sun ◽  
Lei Wang ◽  
Wen-Min Zhang ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Hydrogen Bonds ◽  
Hydrogen Storage ◽  
Formic Acid ◽  
Lignocellulosic Biomass ◽  
Industrial Production ◽  
Chemical Processes ◽  
Selective Hydrolysis ◽  
Promising Candidate

Formic acid (HCO2H) is widely used in various chemical processes, studied in fuel cells, and considered as a promising candidate for hydrogen storage. Currently, industrial production of HCO2H mainly depends...

5 Ammonia: a promising candidate for hydrogen economy

2021 ◽  
pp. 225-246
Author(s):  
Ankur Jain ◽  
Shivani Agarwal ◽  
Takayuki Ichikawa
Keyword(s):  
Hydrogen Economy ◽  
Promising Candidate

The remarkably improved hydrogen storage performance of MgH2 by the synergetic effect of an FeNi/rGO nanocomposite

2020 ◽  
Vol 49 (13) ◽  
pp. 4146-4154 ◽  
Author(s):  
Liang Ji ◽  
Liuting Zhang ◽  
Xinglin Yang ◽  
Xinqiao Zhu ◽  
Lixin Chen
Keyword(s):  
Hydrogen Storage ◽  
Synergetic Effect ◽  
Storage Performance ◽  
Synergetic Effects ◽  
Hydrogen Storage Performance

Synergetic effects between Mg2Ni/Mg2NiH4, Fe, and rGO contributed to the enhanced hydrogen storage performance of MgH2.

Synthesis of MgH2 and Mg2FeH6 by Reactive Milling of Mg-Based Mixtures Containing Fluorine and Iron

2008 ◽  
Vol 570 ◽  
pp. 39-44 ◽  
Author(s):  
Antoine Vaichere ◽  
Daniel Rodrigo Leiva ◽  
Tomaz Toshimi Ishikawa ◽  
Walter José Botta Filho
Keyword(s):  
Hydrogen Storage ◽  
Phase Evolution ◽  
Good Method ◽  
Planetary Mill ◽  
Hydrogen Storage Capacity ◽  
High Hydrogen ◽  
Reactive Milling ◽  
Low Weight ◽  
Hydrogen Reactions ◽  
Kinetics Of

A good method to store hydrogen is in it atomic form in crystalline structure of metals at low pressure. Thanks to magnesium’s high hydrogen storage capacity, its low weight and its high natural abundance, it is an attractive material to develop hydrogen solid state storage. The production of Mg-based nanocomposites can enhance the kinetics of H-sorption of magnesium and the temperature of release of hydrogen. Transition metals as iron, which have important catalytic activity in hydrogen reactions with Mg, and the surface protective compound MgF2, are interesting additions for magnesium mixtures for hydrogen storage. In this work, Mg-based nanocomposites containing Fe and MgF2 were produced by reactive milling under hydrogen using the addition of FeF3, or directly MgF2 and Fe. The efficiency of centrifugal and planetary mill in MgH2 synthesis was compared. The phase evolution during different milling times (from 1 to 96 h) using the planetary was investigated. The different H-desorption behavior of selected milled mixtures was studied and associated with the different present phases in each case.

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