Nanocrystalline Mg2Ni for Hydrogen Storage

Baroutaji, Ahmad; Arjunan, Arun; Ramadan, Mohamad; Alaswad, Abed; Achour, Hussam; Abdelkareem, Mohammad Ali; Olabi, Abdul–Ghani

doi:10.1016/b978-0-12-815732-9.00061-9

Cited by 6 publications

(4 citation statements)

References 44 publications

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“…A common Ni-based intermetallic compound -Mg2Ni has been synthesized and reported over the years to be a good hydrogen storage material (Zaluski et al 1995a;Zaluski et al 1995b). Recently, Baroutaji et al (2022) summarized that another Mg-Ni based compound -Mg2NH4 can be realized (together with Mg) when Mg2Ni directly interacts with MgH2. It can boost MgH2 hydrogen storage feature when both materials interact .…”

Section: 2 Nickel (Ni)mentioning

confidence: 99%

Transition metal-based materials and their catalytic influence on MgH2 hydrogen storage: A review

Gbenebor,

Popoola

2023

Int. J. Renew. Energy Dev.

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The dependence on fossil fuels for energy has culminated in its gradual depletion and this has generated the need to seek alternative source that will be environmentally friendly and sustainable. Hydrogen stands to be promising in this regard as energy carrier which has been proven to be efficient. Magnesium hydride (MgH2) can be used in storing hydrogen because of its availability, light weight and low cost. In this review, monoatomic, alloy, intermetallic and composite forms of Ti, Ni, V, Mo, Fe, Cr, Co, Zr and Nb as additives on MgH2 are discussed. Through ball milling, additive reacts with MgH2 to form compounds including TiH2, Mg2Ni, Mg2NiH4, V2O, VH2, MoSe, Mg2FeH6, NbH and Nb2O5which remain stable after certain de/hydrogenation cycles. Some monoatomic transition metals remain unreacted even after de/hydrogenation cycles. These formed compounds, including stable monoatomic transition metals, impart their catalytic effects by creating diffusion channels for hydrogen via weakening Mg - H bond strength. This reduces hydrogen de/sorption temperatures, activation energies and in turn, hastens hydrogen desorption kinetics of MgH2. Hydrogen storage output of MgH2/transition metal-based materials depend on additive type, ratio of MgH2/additive, ball milling time, ball –to combining materials ratio and de/hydrogenation cycle. There is a need for more investigations to be carried out on nanostructured binary and ternary transition metal-based materials as additives to enhance the hydrogen storage performance of MgH2. In addition, the already established compounds (listed above) formed after ball milling or dehydrogenation can be processed and directly doped into MgH2.

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Section: 2 Nickel (Ni)mentioning

confidence: 99%

Transition metal-based materials and their catalytic influence on MgH2 hydrogen storage: A review

Gbenebor,

Popoola

2023

Int. J. Renew. Energy Dev.

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“…Several studies have been conducted to solve the challenges of commercializing PEMFCs. Thermal management [2], water management [3], and oxygen transport resistance [4] account for the majority of investigations. The operating conditions of PEMFC [5], its flow field [6], and the optimization of properties of cells [5] have all been investigated.…”

Section: -Introductionmentioning

confidence: 99%

Cathode Side Transport Phenomena Investigation and Multi-Objective Optimization of a Tapered Parallel Flow Field PEMFC

Jabbary

Ghasabehi

Shams

2022

Preprint

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A Proton Exchange Membrane Fuel Cell (PEMFC) provides stable, emission-free, high-efficiency power. Water management and durability of PEMFCs are directly affected by transport phenomena at the cathode side. In the present study, transport phenomena are investigated and optimized in a tapered parallel flow field. Main channels in the flow field are tapered, which increases limiting current density by 41%. Two objectives, i.e. water saturation and transport resistance, are considered metrics for transport phenomena in a tapered parallel flow field PEMFC. Operating pressure, temperature, stoichiometries at both sides, and the porosity of gas diffusion layers are selected as parameters to be optimized. Two functions are generated for objectives by integrating 3D multiphase-flow computational fluid dynamics and Response Surface Methodology. Multi-Objective Optimization (MOO) is carried out with two different methods. Multi-Objective Particle Swarm Optimization (MOPSO) and Non-dominated Sorting Genetic Algorithm II (NSGA-II) are employed to produce two challenging Pareto fronts. The results demonstrate that MOPSO performs better than NSGA-II. MOPSO recognized quite the same Pareto front with lower runtime. In the last step, the Technique of Order Preference Similarity to the Ideal Solution (TOPSIS) is used to select an optimum point from the Pareto front. The results are compared against experimental data, and good correspondence is observed. The optimum features are temperature 323, pressure 1 atm, anode stoichiometry 3, cathode stoichiometry 2.62, and porosity 0.68. The porosity and pressure played the most significant roles in determining water saturation and resistance.

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“…Sun et al [17] researched the matching design method of a fuel cell's waste heat recovery system. Baroutaji et al [18] discussed potential pathways for waste heat recovery of PEMFC. Some worked on innovative cooling flow field design or cooling method to benefit the thermal or water management of the PEMFC stack.…”

Section: Introductionmentioning

confidence: 99%

Thermal analysis and management of proton exchange membrane fuel cell stacks for automotive vehicle

Xing

Chang

Zhu

et al. 2021

International Journal of Hydrogen Energy

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Nanocrystalline Mg2Ni for Hydrogen Storage

Cited by 6 publications

References 44 publications

Transition metal-based materials and their catalytic influence on MgH2 hydrogen storage: A review

Transition metal-based materials and their catalytic influence on MgH2 hydrogen storage: A review

Cathode Side Transport Phenomena Investigation and Multi-Objective Optimization of a Tapered Parallel Flow Field PEMFC

Thermal analysis and management of proton exchange membrane fuel cell stacks for automotive vehicle

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