Experimental study of hydrogen production process with aluminum and water

Bolt, Andre; Dinçer, İbrahim; Agelin‐Chaab, Martin

doi:10.1016/j.ijhydene.2020.03.160

Cited by 47 publications

(14 citation statements)

References 21 publications

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“…Another reactor design was proposed by continuously passing nitrogen path to the reaction of Alwater in an alkaline medium. 32 One important challenge is the highly energy and time (up to 24 hours) consumption during the pretreatment process of waste aluminum precursors with/without catalysts by ball milling. 60,61 Another strategy for improving hydrogen conversion efficiency was directed toward the addition of catalysts such as TiH 2, 62 gallium, 29 sodium molybdate dehydrate, 31 Al(OH) 3, 30 Bi, Ni, and Ni/Bi catalysts, 25 and Ga:In:Sn.…”

Section: Effect Of Nano-catalystsmentioning

confidence: 99%

“…21,[25][26][27][28][29][30][31][32] Accordingly, research-based on nanocatalysts to enhance the reaction rate of Al in H 2 O to promptly liberate H 2 gas is an ideal option that is rarely discussed in the literature. [29][30][31][32] In the recent past, the use of nanomaterials as catalysts in energy and environmental fields has received enormous attention. 33 Copper and copper oxide nanoparticles (CuO NPs) have shown exceptional reactivity in recent industrial and technological applications, owing to their novel properties and facile processing.…”

Section: Introductionmentioning

confidence: 99%

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Green synthesis of Size‐Controlled copper oxide nanoparticles as catalysts for H ₂ production from industrial waste aluminum

Amrani

Alrafai

Al‐nami

et al. 2022

Intl J of Energy Research

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Extensive research and development in the processes of production and generation of hydrogen are needed to make renewable hydrogen cost-competitive with fossil hydrogen. As a result, developing hydrogen energy from low-cost components and synthesizing it from renewable resources is an important issue that can be considered a global challenge. The current research provided a continuous H 2 energy production from waste aluminum in a water medium using copper oxide nanoparticles (CuO NPs) as catalysts in the reaction. CuO NPs have been prepared by a green, easy, inexpensive, and systematic method using Catha edulis L. (Khat) extract as reducing and capping agents. Separately, CuO NPs prepared in an alkaline media using the conventional hydrothermal process have been described and reported for comparison.

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Section: Effect Of Nano-catalystsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Green synthesis of Size‐Controlled copper oxide nanoparticles as catalysts for H ₂ production from industrial waste aluminum

Amrani

Alrafai

Al‐nami

et al. 2022

Intl J of Energy Research

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“…If this process were to be scaled up, or done on a large-scale operation, sea or ocean water should be used ideally due to its abundance. Bolt et al , conducted several studies in which researchers tested the viability of using ocean/seawater to produce hydrogen gas from the aluminum–water chemical reaction. Researchers were able to achieve a maximum yield of 58.8%.…”

Section: Potential Environmental Impact and Scalabilitymentioning

confidence: 99%

A Review of Unique Aluminum–Water Based Hydrogen Production Options

2021

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This comprehensive review paper compares the different methods developed experimentally to produce hydrogen by reacting aluminum and water. The alumina oxide layer which forms on the exterior surface of aluminum inhibits the reaction from taking place. Therefore, this paper presents a variety of techniques used to eliminate the oxide layer so that the reaction can continuously take place. The review paper aims to evaluate these techniques by comparing the hydrogen yield and maximum hydrogen production rate. On the basis of the analyses conducted, it was identified that the addition of hydroxide promoters, such as NaOH and KOH, is highly beneficial. This was also evident in the various studies where yields greater than 99% are achieved. Additionally, it is determined that the addition of NaCl or KCl to ball-milled samples of aluminum can be extremely advantageous when examining the maximum hydrogen production rate. For instance, an experimental sample composed of 2% NaCl was able to achieve a maximum hydrogen production rate of 1140 mL/min. Furthermore, numerous other studies are discussed by considering their specific advantages and disadvantages.

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“…Among the various clean energy sources, high-energy density, and sustainability has made hydrogen energy a promising alternative to the fossil fuels. [1][2][3][4][5] There are various hydrogen production technologies including catalytic reforming, water electrolysis, water photolysis, biomass, metals, metal hydride, and so on, with all of them having their advantages and disadvantages. [6][7][8][9][10][11][12][13][14][15] For example, production of hydrogen from the fossil fuels though has high production efficiency, cannot be used as a long-term strategy for hydrogen economy due to its un-sustainability and airpollution; consumption of large quantity of electricity has made water electrolysis unfavorable though it can yield high-purity hydrogen; hydrogen production from the biomass, though is difficult to control with very low efficiency [16][17][18] but it is a promising method for the future.…”

Section: Introductionmentioning

confidence: 99%

“…Clean energy systems are becoming the necessity for various countries due to the fossil fuel depletion as well as the environmental deterioration. Among the various clean energy sources, high‐energy density, and sustainability has made hydrogen energy a promising alternative to the fossil fuels 1‐5 . There are various hydrogen production technologies including catalytic reforming, water electrolysis, water photolysis, biomass, metals, metal hydride, and so on, with all of them having their advantages and disadvantages 6‐15 .…”

Section: Introductionmentioning

confidence: 99%

Investigation on the Al/low‐melting‐point metals/salt composites for hydrogen generation

et al. 2021

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A series of Al-Ga-In-Sn-NaCl composites were prepared by mechanical ball milling. NaCl contributes to the particle breakage and particle refinement during the ball milling process, but the hydrogen generation of the composites decreases as the content of NaCl exceeds 5%. Higher composite to water ratio led to reduction of the hydrogen generation for the Al-Ga-In-Sn-5% NaCl composite. In addition, compared to pure water, the hydrogen generation of this composite is lower in NaCl solution. These results indicate the higher ionic concentration in water is not conducive for hydrogen generation. During the hydrolysis process, the dissolution of NaCl in water increases the ionic concentration, so the excessive NaCl in the composite leads to the reduction of hydrogen generation. In addition, optimization of the milling time is important for hydrogen generation. By optimizing the milling time to 18 hours, hydrogen yield of the Al-Ga-In-Sn-5% NaCl composite reached 1150 mL g −1 at 25 C. Although the composites easily react with moisture in the air, the hydrogen yield of Al-Ga-In-Sn-5% NaCl and Al-Ga-In-Sn-10% NaCl composites can maintain 100% and 94% of the original after being exposed to the air for 5 and 10 days. Highlights 1. A series of Al-Ga-In-Sn-NaCl composites were prepared by mechanical ball milling. 2. NaCl contributes to the particle breakage and particle refinement during the ball milling process, but the hydrogen generation of the composites decreases as the content of NaCl exceeds 5%.3. By optimizing the milling time to 18 hours, hydrogen yield of the Al-Ga-In-Sn-5% NaCl composite reached 1150 mL g −1 at 25 C in pure water. 4. The hydrogen yield of Al-Ga-In-Sn-5% NaCl and Al-Ga-In-Sn-10% NaCl composites can maintain 100% and 94% of the original after being exposed to the air for 5 and 10 days.

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Experimental study of hydrogen production process with aluminum and water

Cited by 47 publications

References 21 publications

Green synthesis of Size‐Controlled copper oxide nanoparticles as catalysts for H ₂ production from industrial waste aluminum

Green synthesis of Size‐Controlled copper oxide nanoparticles as catalysts for H ₂ production from industrial waste aluminum

A Review of Unique Aluminum–Water Based Hydrogen Production Options

Investigation on the Al/low‐melting‐point metals/salt composites for hydrogen generation

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Experimental study of hydrogen production process with aluminum and water

Cited by 47 publications

References 21 publications

Green synthesis of Size‐Controlled copper oxide nanoparticles as catalysts for H 2 production from industrial waste aluminum

Green synthesis of Size‐Controlled copper oxide nanoparticles as catalysts for H 2 production from industrial waste aluminum

A Review of Unique Aluminum–Water Based Hydrogen Production Options

Investigation on the Al/low‐melting‐point metals/salt composites for hydrogen generation

Contact Info

Product

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Green synthesis of Size‐Controlled copper oxide nanoparticles as catalysts for H ₂ production from industrial waste aluminum

Green synthesis of Size‐Controlled copper oxide nanoparticles as catalysts for H ₂ production from industrial waste aluminum