Hydrogen Storage for Mobility: A Review

Rivard, Etienne; Trudeau, Michel; Zaghib, Karim

doi:10.3390/ma12121973

Cited by 569 publications

(276 citation statements)

References 172 publications

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“…Hydrogen should be produced because it does not exist in nature by itself. The need for the large fuel tank size, preserving liquefied hydrogen approximately below 253 • C working conditions and the aerodynamic design challenges in terms of weight is counted to be the major problems [22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Comparative Performance Metric Assessment of A Military Turbojet Engine Utilizing Hydrogen And Kerosene Fuels Through Advanced Exergy Analysis Method

et al. 2020

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This study dealt with evaluating the (J85-GE-5H) military turbojet engine (TJE) in terms of exergetic and advanced exergetic analyses at Military (MIL) and Afterburner (AB) process modes by utilizing kerosene (JP-8) and hydrogen (H2) fuels. First, exergy and advanced exergy analyses of the engine were performed using JP-8 fuel as per actual engine operating conditions. These analyses of the turbojet engine using hydrogen fuel were also examined parametrically. The performance evaluation of the engine was lastly executed by comparing the obtained results for both fuels. Based on the parametric studies undertaken, the entire engine’s exergetic efficiency with JP-8 was reckoned 30.85% at the MIL process mode while it was calculated as 16.98% at the AB process mode. With the usage of H2, the efficiencies of the engine decreased to 28.62% and 15.33% for the above mentioned two modes, respectively. As the supreme exergy destructions occurred in the combustion chamber (CC) and afterburner exhaust duct (ABED) segments, the new technological developments should be considered to design more efficient engines. As a result, the engine worked less efficiently with hydrogen fuel due to the enhancement in exergy destructions. Conversely, the greenhouse gas (GHG) emission parameters lessened with the utilization of H2 fuel.

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Section: Introductionmentioning

confidence: 99%

Comparative Performance Metric Assessment of A Military Turbojet Engine Utilizing Hydrogen And Kerosene Fuels Through Advanced Exergy Analysis Method

et al. 2020

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“…Both of these confinements are less than a few molecular diameters wide. The pore network of the CNT (5,5) and CNT (6,6) bundles consists exclusively of sub-nanometer pores. Such ultra microporous structures favour the adsorption of hydrogen at extremely low pressures.…”

Section: Triangular Bundlementioning

confidence: 99%

“…It can be produced from renewable sources, but it exists as low density gas under ambient conditions. Hydrogen storage is the main handicap concerning the implementation of hydrogen-based propulsion systems especially for on-board applications [4][5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Pulling Simulations and Hydrogen Sorption Modelling on Carbon Nanotube Bundles

Gotzias

Sapalidis

2020

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Recent progress in molecular simulation technology has developed an interest in modernizing the usual computational methods and approaches. For instance, most of the theoretical work on hydrogen adsorption on carbon nanotubes was conducted a decade ago. It should be insightful to reinvestigate the field and take advantage of code improvements and features implemented in contemporary software. One example of such features is the pulling simulation modules now available in many molecular dynamics programs. We conduct pulling simulations on pairs of carbon nanotubes and measure the inter-tube distance before they dissociate in water. We use this distance to set the interval size between adjacent nanotubes as we arrange them in bundle configurations. We consider bundles with triangular, intermediate and honeycomb patterns, and armchair nanotubes with a chiral index from n = 5 to n = 10. Then, we simulate low pressure hydrogen adsorption isotherms at 77 K, using the grand canonical Monte Carlo method. The different bundle configurations adsorb great hydrogen amounts that may exceed 2% wt at ambient pressures. The computed hydrogen capacities are considered large for physisorption on carbon nanostructures and attributed to the ultra-microporous network and extraordinary high surface area of the configured models.

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“…The storage and transportation of hydrogen is a key problem to be solved by the hydrogen economy [1][2][3][4][5]. This problem is especially acute when using low-temperature fuel cells with a proton-exchange membrane (LT-PEMFC) in hard-to-reach and unelectrified areas when hydrogen has to be delivered in a compact form by aircraft transport.…”

Section: Introductionmentioning

confidence: 99%

Solid-State NaBH4 Composites as Hydrogen Generation Material: Effect of Thermal Treatment of a Catalyst Precursor on the Hydrogen Generation Rate

et al. 2020

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Solid-state composites based on sodium borohydride (NaBH4) were studied for applications as hydrogen generation materials. Hydrates of cobalt and nickel chlorides subjected to a thermal treatment were added to the composites as catalyst precursors. Using thermal analysis and FTIR spectroscopy, it was shown that the amount of water removed increases with the increasing temperature. Herewith, the water molecules that remained in the samples were strongly bound to the metal and isolated from each other. According to the ultraviolet–visible (UV-vis) spectroscopy data, with the increasing temperature of the thermal pretreatment there took place a substitution of a portion of water molecules by chloride ions in the nearest environment of the metal. It appeared that it was the resulting weakening of the electrostatic field on metal that was mainly responsible for the formation of a more finely dispersed catalytic phase of amorphous cobalt boride in the reaction medium under the action of sodium borohydride. The smaller particles of the active components led to a faster rate of gas generation when water was added to the solid-state NaBH4 composites. This trend remained for both the cobalt and the nickel catalytic systems even when the activity was calculated per gram of the metal. Thus, for the preparation of solid-state NaBH4 composites, hydrates of cobalt and nickel chlorides with a low content of water should be used.

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Hydrogen Storage for Mobility: A Review

Cited by 569 publications

References 172 publications

Comparative Performance Metric Assessment of A Military Turbojet Engine Utilizing Hydrogen And Kerosene Fuels Through Advanced Exergy Analysis Method

Comparative Performance Metric Assessment of A Military Turbojet Engine Utilizing Hydrogen And Kerosene Fuels Through Advanced Exergy Analysis Method

Pulling Simulations and Hydrogen Sorption Modelling on Carbon Nanotube Bundles

Solid-State NaBH4 Composites as Hydrogen Generation Material: Effect of Thermal Treatment of a Catalyst Precursor on the Hydrogen Generation Rate

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