Results 21 to 30 of about 16,200 (273)

Characterization of LiBH₄–MgH₂ Reactive Hydride Composite System with Scattering and Imaging Methods Using Neutron and Synchrotron Radiation [PDF]

Advanced Engineering Materials, 2021
Reversible solid‐state hydrogen storage in metal hydrides is a key technology for pollution‐free energy conversion systems. Herein, the LiBH2–MgH2 composite system with and without ScCl3 additive is investigated using synchrotron‐ and neutron‐radiation‐based probing methods that can be applied to characterize such lightweight metal–hydrogen systems ...
Fahim Karimi, Stefan Börries, P. Klaus Pranzas, Oliver Metz, Armin Hoell, Gökhan Gizer, Julián Puszkiel, María Victoria Castro Riglos, Claudio Pistidda, Martin Dornheim, Thomas Klassen, A. Schreyer   +11 more
semanticscholar   +5 more sources

Microstructural study of hydrogen desorption in 2NaBH4 + MgH2 reactive hydride composite

International Journal of Hydrogen Energy, 2012
Abstract The desorption mechanism of as-milled 2NaBH 4  + MgH 2 was investigated by volumetric analysis, X-ray diffraction and electron microscopy. Hydrogen desorption was carried out in 0.1 bar hydrogen pressure from room temperature up to 450 °C at a heating rate of 3 °C min −1 . Complete dehydrogenation was achieved in two steps releasing 7.84 wt.
Claudio Pistidda, Martin Dornheim
exaly   +4 more sources

Releasing 8.0 wt.% H2 from the LiBH4−2LiNH2 Composite within 5 Min under Light Illumination [PDF]

Advanced Science
The absence of safe and efficient hydrogen storage technologies is the major bottleneck for widespread applications of hydrogen energy. Reactive hydride composites with high gravimetric and volumetric hydrogen densities are ideal hydrogen storage ...
Haoyang Yu, Zibo Cheng, Hong Wen, Han Wang, Qijun Pei, Yeqin Guan, Hujun Cao, Ping Chen   +7 more
doaj   +3 more sources

Composite Materials for Hazard Mitigation of Reactive Metal Hydrides. [PDF]

International Journal of Hydrogen Energy, 2012
In an attempt to mitigate the hazards associated with storing large quantities of reactive metal hydrides, polymer composite materials were synthesized and tested under simulated usage and accident conditions. The composites were made by polymerizing vinyl monomers using free-radical polymerization chemistry, in the presence of the metal hydride ...
Joseph William Pratt, Joseph Cordaro, George B. Sartor, Daniel Dedrick, Craig L. Reeder   +4 more
  +7 more sources

Engineering LiBH₄-Based Materials for Advanced Hydrogen Storage: A Critical Review of Catalysis, Nanoconfinement, and Composite Design [PDF]

Molecules
Lithium borohydride (LiBH4) has emerged as a promising hydrogen storage material due to its exceptional theoretical hydrogen capacity (18.5 wt.%). However, its practical application is hindered by high dehydrogenation temperature (>400 °C), sluggish ...
Yaohui Xu, Yang Zhou, Yuting Li, Maziar Ashuri, Zhao Ding   +4 more
doaj   +3 more sources

Combined x-ray photoelectron spectroscopy and scanning electron microscopy studies of the LiBH4–MgH2 reactive hydride composite with and without a Ti-based additive [PDF]

Journal of Applied Physics, 2011
Miguel Angel Muñoz-Márquez, M C Jiménez de Haro, F J Palomares   +2 more
exaly   +3 more sources

Oxidation State and Local Structure of Ti-Based Additives in the Reactive Hydride Composite 2LiBH₄ + MgH₂

The Journal of Physical Chemistry C, 2010
Nowadays, the technological utilization of reactive hydride composites (RHC) as hydrogen storage materials is limited by their reaction kinetics. However, addition of transition-metal-based additives, for instance titanium isopropoxide (Ti-iso), to the 2LiBH4+MgH2 system, results in a significant improvement of sorption kinetics.
E. Deprez, Miguel Ángel Muñoz‐Márquez, Manuel A. Roldán, Carmelo Prestipino, F. J. Palomares, Christian Bonatto Minella, Ulrike Bösenberg, Martin Dornheim, R. Bormann, A. Fernández   +9 more
semanticscholar   +5 more sources

Aluminum methylamidoborane complexes: mechanochemical synthesis, structure, stability, and reactive hydride composites

Sustainable Energy & Fuels, 2023
Na[Al(CH3NHBH3)4] and an intermediate Na[AlH(CH3NHBH3)3] were synthesized by ball milling. Na[Al(CH3NHBH3)4] + 12NaH/6NaNH2 released pure hydrogen at moderate temperatures, making this and similar systems interesting candidates for H-storage.
Ting Zhang, Timothy Steenhaut, Xiao Li, François Devred, Michel Devillers, Yaroslav Filinchuk   +5 more
openalex   +4 more sources

Simultaneous desorption behavior of M borohydrides and Mg2FeH6 reactive hydride composites (M = Mg, then Li, Na, K, Ca) [PDF]

Applied Physics Letters, 2015
Combinations of complex metal borohydrides ball milled with the transition metal complex hydride, Mg2FeH6, are analysed and compared. Initially, the Reactive Hydride Composite (RHC) of Mg2+ cation mixtures of Mg2FeH6 and γ-Mg(BH4)2 is combined in a range of molar ratios and heated to a maximum of 450 °C.
Anna‐Lisa Chaudhary, Guanqiao Li, Motoaki Matsuo, Shin‐ichi Orimo, Stefano Deledda, Magnus H. Sørby, Bjørn C. Hauback, Claudio Pistidda, Thomas Klassen, Martin Dornheim   +9 more
semanticscholar   +4 more sources

Mechanochemical synthesis of NaBH4 starting from NaH–MgB2 reactive hydride composite system [PDF]

International Journal of Hydrogen Energy, 2012
The present investigation focuses on a new synthesis route of NaBH4 starting from the 2NaH + MgB2 system subjected to mechanochemical activation under reactive hydrogen atmosphere. The milling process was carried out under two different hydrogen pressures (1 and 120 bar) with two different rotation speeds (300 and 550 rpm).
Sebastiano Garroni, Christian Bonatto Minella, Daphiny Pottmaier, Claudio Pistidda, Chiara Milanese, Anna María Marini, Stefano Enzo, G. Mulas, Martin Dornheim, Marcello Baricco, Oliver Gutfleisch, S. Suriñach, M.D. Baró   +12 more
openalex   +4 more sources