Hydrogen sorption improvement of MgH2 catalyzed by CeO2 nanopowder

Mustafa, N.S.; Ismail, M.

doi:10.1016/j.jallcom.2016.11.158

Cited by 116 publications

(35 citation statements)

References 68 publications

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“…Mustafa et al [70] reported the hydrogen storage properties of the ball-milled MgH 2 + 5 wt % CeO 2 at a speed of 400 rpm in an argon atmosphere. The results showed that the hydrogenation rate of CeO 2 doped MgH 2 composites was faster than pristine magnesium hydride.…”

Section: Introduction Of Metal Oxidesmentioning

confidence: 99%

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Catalysis and Downsizing in Mg-Based Hydrogen Storage Materials

Li¹,

Li²,

Shao³

et al. 2018

Catalysts

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Magnesium (Mg)-based materials are promising candidates for hydrogen storage due to the low cost, high hydrogen storage capacity and abundant resources of magnesium for the realization of a hydrogen society. However, the sluggish kinetics and strong stability of the metal-hydrogen bonding of Mg-based materials hinder their application, especially for onboard storage. Many researchers are devoted to overcoming these challenges by numerous methods. Here, this review summarizes some advances in the development of Mg-based hydrogen storage materials related to downsizing and catalysis. In particular, the focus is on how downsizing and catalysts affect the hydrogen storage capacity, kinetics and thermodynamics of Mg-based hydrogen storage materials. Finally, the future development and applications of Mg-based hydrogen storage materials is discussed.

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Section: Introduction Of Metal Oxidesmentioning

confidence: 99%

“…Isothermal dehydrogenation kinetics (a) and hydrogenation kinetics (b) of the as-milled MgH2 and MgH2 doped with 5 wt % CeO2 at 320 °C and 300 °C. Adapted with permission from[70], Copyright Elsevier, 2017.…”

mentioning

confidence: 99%

Catalysis and Downsizing in Mg-Based Hydrogen Storage Materials

Li¹,

Li²,

Shao³

et al. 2018

Catalysts

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“…However, MgH 2 is restricted by the decomposition temperature, which is high with slow sorption kinetics and is excessively stable thermodynamically. 2 Many research have been conducted to overcome these disadvantages by altering the thermodynamics and improve the kinetic properties by producing nanostructures 3,4 and utilizing catalysts such as carbon-based materials, 5,6 metals, 7-10 metal hydrides, 11,12 metal oxides, [13][14][15][16][17][18] metal halides, [19][20][21] and nanosized alloys.…”

Section: Introductionmentioning

confidence: 99%

Nanolayer-like-shaped MgFe₂O₄ synthesised via a simple hydrothermal method and its catalytic effect on the hydrogen storage properties of MgH₂

et al. 2018

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In this study, the effect of nanolayer-like-shaped MgFe 2 O 4 that is synthesised via a simple hydrothermal method on the performance of MgH 2 for hydrogen storage is studied. ). X-ray diffraction spectra display the formation of new species which are Fe and MgO after dehydrogenation, and these new species are believed to act as the real catalyst that plays a crucial role in improving the sorption performance of the MgFe 2 O 4 -doped MgH 2 system by providing a synergetic catalytic effect.

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“…Doping is a method that mainly focuses on tuning kinetic properties [15]. Doping nonmetals [39,84,88,89], metals [90,91], metal compounds [35,[92][93][94][95][96][97][98][99] [110] prepared MgH 2 -Nb 2 O 5 by ball-milling, indicating that Nb 2 O 5 not only acted as a catalyst but also a process control agent to prevent the cold welding during ball-milling. Recently, Zhang et al [100] synthesized TiO 2 nanosheets (NS) with exposed {001} facets, and introduced it into MgH 2 by ball-milling.…”

Section: Adding Dopantsmentioning

confidence: 99%

Lightweight hydrides nanocomposites for hydrogen storage: Challenges, progress and prospects

Huang

et al. 2019

Sci. China Mater.

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As typical high-capacity complex hydrides, lightweight hydrides have attracted intensive attention due to their high gravimetric and volumetric energy densities of hydrogen storage. However, lightweight hydrides also have high thermodynamic stability and poor kinetics, so they ususally require high hydrogen desorption temperature and show inferior reversibility under mild conditions. This review summarizes recent progresses on the endeavor of overcoming thermodynamic and kinetic challenges for Mg based hydrides, lightweight metal borohydrides and alanates. First, the current state, advantages and challenges for Mg-based hydrides and lightweight metal hydrides are introduced. Then, alloying, nanoscaling and appropriate doping techniques are demonstrated to decrease the hydrogen desorption temperature and promote the reversibility behavior in lightweight hydrides. Selected scaffolds materials, approaches for synthesis of nanoconfined systems and hydriding-dehydriding properties are reviewed. In addition, the evolution of various dopants and their effects on the hydrogen storage properties of lightweight hydrides are investigated, and the relevant catalytic mechanisms are summarized. Finally, the remaining challenges and the sustainable research efforts are discussed.

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Hydrogen sorption improvement of MgH2 catalyzed by CeO2 nanopowder

Cited by 116 publications

References 68 publications

Catalysis and Downsizing in Mg-Based Hydrogen Storage Materials

Catalysis and Downsizing in Mg-Based Hydrogen Storage Materials

Nanolayer-like-shaped MgFe₂O₄ synthesised via a simple hydrothermal method and its catalytic effect on the hydrogen storage properties of MgH₂

Lightweight hydrides nanocomposites for hydrogen storage: Challenges, progress and prospects

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Hydrogen sorption improvement of MgH2 catalyzed by CeO2 nanopowder

Cited by 116 publications

References 68 publications

Catalysis and Downsizing in Mg-Based Hydrogen Storage Materials

Catalysis and Downsizing in Mg-Based Hydrogen Storage Materials

Nanolayer-like-shaped MgFe2O4 synthesised via a simple hydrothermal method and its catalytic effect on the hydrogen storage properties of MgH2

Lightweight hydrides nanocomposites for hydrogen storage: Challenges, progress and prospects

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Nanolayer-like-shaped MgFe₂O₄ synthesised via a simple hydrothermal method and its catalytic effect on the hydrogen storage properties of MgH₂