Crystal Chemistry of Hydrogen Storage Materials

2008 ◽  
Vol 1098 ◽  
Author(s):  
Martin Owen Jones ◽  
William I. F. David ◽  
Simon R. Johnson ◽  
Marco Sommariva ◽  
Rebecca L. Lowton ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Alkali Metal ◽  
Hydrogen Storage ◽  
Crystal Chemistry ◽  
Hydrogen Absorption ◽  
Chemical Properties ◽  
Hydrogen Storage Materials ◽  
Storage Materials ◽  
Metal Amides ◽  
And Chemical Properties

AbstractWe review here work on two classes of compounds that have been promoted as potential hydrogen storage materials; alkali metal amides and borohydrides, highlighting how their crystal structure and chemical properties may be used to influence the key hydrogen absorption and desorption parameters in these materials.

Kinetics and Thermodynamics of Nanostructured Mg-Based Hydrogen Storage Materials Synthesized from Metal Nanoparticles

2014 ◽  
Vol 924 ◽  
pp. 189-192 ◽  
Author(s):  
Huai Yu Shao ◽  
Xing Guo Li
Keyword(s):  
Hydrogen Storage ◽  
Metal Nanoparticles ◽  
Hydrogen Absorption ◽  
Size Range ◽  
Hydrogen Plasma ◽  
Absorption Kinetics ◽  
Hydrogen Storage Materials ◽  
Storage Materials ◽  
Enthalpy And Entropy ◽  
Desorption Enthalpy

Mg, Ni, Co, Cu and Fe nanoparticles with a particle size of 30-300 nm were synthesized by hydrogen plasma metal reaction method. Nanostructured Mg-based hydrogen storage materials (Mg-H, Mg-Ni-H, Mg-Co-H, Mg-Cu-H and Mg-Fe-H systems) were synthesized from these metal nanoparticles. In this work, the kinetic and thermodynamic properties of these nanostructured hydrogen storage materials were studied. It was found that nanostructure could significantly enhance the hydrogen absorption kinetics but the thermodynamics (desorption enthalpy and entropy) does not change with downsizing in the size range of 50 to 300 nm.

scholarly journals Boron Hydrogen Compounds for Hydrogen Storage and as Solid Ionic Conductors

2019 ◽  
Vol 73 (11) ◽  
pp. 868-873 ◽  
Author(s):  
Hans Hagemann
Keyword(s):  
Solid State ◽  
Hydrogen Storage ◽  
Recent Literature ◽  
Chemical Properties ◽  
Hydrogen Storage Materials ◽  
Ionic Conductors ◽  
Sodium Batteries ◽  
New Compounds ◽  
Kinetics Of ◽  
And Chemical Properties

Metal borohydrides have been studied since the beginning of this century as potential hydrogen storage materials due to their high gravimetric hydrogen content. Many new compounds have been synthesized and characterized, however to date the main problem are the kinetics of dehydrogenation and rehydrogenation. In this review we address thermodynamical and chemical properties of boron hydrogen compounds which come into play for hydrogen storage and which must be considered in the search for efficient catalysts. More recently, closo and nido hydridoborate and related closo hydridocarborate compounds have been identified as good ionic conductors for all-solid-state lithium or sodium batteries. The properties of these fascinating and very promising compounds for battery applications are illustrated with recent literature results.

scholarly journals Recent Developments of Effective Catalysts for Hydrogen Storage Technology Using N-Ethylcarbazole

Catalysts ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 648 ◽  
Author(s):  
Liu Zhou ◽  
Lin Sun ◽  
Lixin Xu ◽  
Chao Wan ◽  
Yue An ◽  
...  
Keyword(s):  
Hydrogen Storage ◽  
Chemical Properties ◽  
High Energy ◽  
High Energy Density ◽  
Research Progress ◽  
Hydrogen Energy ◽  
Hydrogen Storage Materials ◽  
Long Distance ◽  
Storage Materials ◽  
Hydrogen Carrier

Hydrogen energy is considered to be a desired energy storage carrier because of its high-energy density, extensive sources, and is environmentally friendly. The development of hydrogen storage material, especially liquid organic hydrogen carrier (LOHC), has drawn intensive attention to address the problem of hydrogen utilization. Hydrogen carrier is a material that can reversibly absorb and release hydrogen using catalysts at elevated temperature, in which LOHC mainly relies on the covalent bonding of hydrogen during storage to facilitate long-distance transportation and treatment. In this review, the chemical properties and state-of-the-art of LOHCs were investigated and discussed. It reviews the latest research progress with regard to liquid organic hydrogen storage materials, namely N-ethylcarbazole, and the recent progress in the preparation of efficient catalysts for N-ethylcarbazole dehydrogenation by using metal multiphase catalysts supported by carbon–nitrogen materials is expounded. Several approaches have been considered to obtain efficient catalysts such as increasing the surface area of the support, optimizing particle size, and enhancing the porous structure of the support. This review provides a new direction for the research of hydrogen storage materials and considerations for follow-up research.

scholarly journals Using Ball Milling for Modification of the Hydrogenation/Dehydrogenation Process in Magnesium-Based Hydrogen Storage Materials: An Overview

Metals ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 768 ◽  
Author(s):  
Jinzhe Lyu ◽  
Andrey Lider ◽  
Viktor Kudiiarov
Keyword(s):  
Hydrogen Storage ◽  
Ball Milling ◽  
Hydrogen Absorption ◽  
Storage Capacity ◽  
Low Cost ◽  
Temperature Limit ◽  
Computer Design ◽  
Hydrogen Storage Materials ◽  
Hydrogen Storage Capacity ◽  
Storage Materials

Magnesium-based hydrogen storage materials are considered to be one of the most promising solid-state hydrogen storage materials due to their large hydrogen storage capacity and low cost. However, slow hydrogen absorption/desorption rate and excessive hydrogen absorption/desorption temperature limit the application of magnesium-based hydrogen storage materials. The present paper reviews recent progress in improving the hydrogen storage properties by element substitution and additives. Ball milling is the promising technology for preparing magnesium-based hydrogen storage materials. The research and development of approaches for modifying magnesium-based hydrogen storage materials prepared by ball milling is systematically expounded. It is concluded that ball milling can significantly improve the kinetic and electrochemical properties of magnesium-based hydrogen storage materials and increase the hydrogen storage capacity. In the future, the research of magnesium-based hydrogen storage materials should be developed in terms of hydrogen storage mechanism, computer design of materials and development of a more optimized catalytic system.

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