Mild hydrogen production from the hydrolysis of Al–Bi–Zn composite powder

Wang, Cuiping; Qiu, Changrui; Wei, Haiting; Zou, Hao; Lin, Kairui; Guo, Yongsheng; Yang, Shuiyuan; Liu, Xingjun

doi:10.1016/j.ijhydene.2020.12.104

Cited by 24 publications

(8 citation statements)

References 23 publications

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“…The hydrogen yield decreased from 97.5 to 75.9% with an increase in NaCl concentration of 0.25–3.5 M. The observed decrease in reaction rate and hydrogen yield was unexpected considering that the inclusion of an electrolyte should increase the conductivity of the hydrolysis solution [ 1 , 75 , 90 ]. A recent study by Wang et al (2021) observed a similar trend [ 50 ]. Currently, this phenomenon is unexplained and requires further investigation.…”

Section: Resultssupporting

confidence: 60%

“…However, this method is complicated by the toxic nature of Hg and the expensiveness of Ga [ 44 ]. Thermal or mechanochemical processing of Al with various salts, metals, metal oxides, and combinations thereof are attractive techniques to remove the protective Al 2 O 3 layer, e.g., Al-x (x = combinations of In, Sn, Ga, Bi, Zn, Li, Fe, Mg, Cu, Ti) [ 38 , 45 , 46 , 47 , 48 , 49 , 50 ], Al-BaCl 2 , [ 51 ] Al-KCl, [ 52 ] Al-BiOCl, [ 53 ] Al-NaBH 4 , [ 54 ] Al-NaMgH 3 , Al-Al(OH) 3 , [ 55 ] Al-Fe, [ 56 ] Al-Bi-hydride/various salts, [ 57 ] Al-Ni-NaCl, [ 58 ] Al-Bi-C, [ 59 ] Al-InCl 3 -(Ni-Bi-B), [ 60 ] Al-Zn-B [ 61 ], Al-Ga-In-SnCl 2 , [ 62 ] Al-NaMgH 3 -Bi-Li 3 AlH 6 , [ 63 ] Al-Ga-In-Sn-KCl, [ 64 ], and processed, technical-grade aluminum, Al-6061 (containing Mg and Si) [ 65 ].…”

Section: Introductionmentioning

confidence: 99%

“…A study by Wang et al (2021) prepared Al-Bi-Zn composites using a gas atomization method. An Al-12 wt% Bi-7 wt% Zn composite achieved a 98% hydrogen yield after 280 min when hydrolyzed in distilled water at 50 °C [ 50 ]. In this study, ternary Al-Bi-Zn composites were prepared by ball milling, and their reactivity towards neutral pH water was evaluated.…”

Section: Introductionmentioning

confidence: 99%

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On-Demand Hydrogen Generation by the Hydrolysis of Ball-Milled Aluminum–Bismuth–Zinc Composites

2022

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In this investigation, ternary Al-Bi-Zn composites were prepared through mechanochemical activation to determine the combined effects of low-cost Bi and Zn on the morphology change and reactivity of the Al composite during the hydrolysis reaction. Specifically, Zn was considered as a means to slow the hydrogen generation rate while preserving a high hydrogen yield. A steady hydrogen generation rate is preferred when coupled with a proton exchange membrane fuel cell (PEMFC). Scanning electron microscopy (SEM) analysis indicated that Bi and Zn were distributed relatively uniformly in Al particles. By doing so, galvanic coupling between anodic Al and the cathodic Bi/Zn sustains the hydrolysis reaction until the entire Al particle is consumed. X-ray diffraction analysis (XRD) showed no intermetallic phases between Al, Bi, and/or Zn formed. A composite containing 7.5 wt% Bi and 2.5 wt% Zn had a hydrogen yield of 99.5%, which was completed after approximately 2300 s. It was further found that the water quality used during hydrolysis could further slow the hydrogen generation rate.

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Section: Resultssupporting

confidence: 60%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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On-Demand Hydrogen Generation by the Hydrolysis of Ball-Milled Aluminum–Bismuth–Zinc Composites

2022

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“…Various light metal-based materials and borohydrides have been intensively investigated for hydrolytic hydrogen generation, such as Mg, , Al, , and NaBH 4 , , but their high cost prevents their large-scale practical application. Silicon has recently been considered as a promising and economic hydrolytic material. − It has a much higher theoretical hydrogen capacity of 1595 mL g –1 according to the thermodynamically favorable reaction of Si + 2H 2 O → SiO 2 + 2H 2 (△ G Θ = −376 kJ mol –1 ) when compared to Mg (∼922 mL g –1 ) and Al (∼1245 mL g –1 ) . However, the reaction is hindered by the original passivated oxide layer on the Si surface and little hydrogen is released in pure water .…”

Section: Introductionmentioning

confidence: 99%

“…11−13 It has a much higher theoretical hydrogen capacity of 1595 mL g −1 according to the thermodynamically favorable reaction of Si + 2H 2 O → SiO 2 + 2H 2 (△G Θ = −376 kJ mol −1 ) 14 when compared to Mg (∼922 mL g −1 ) 15 and Al (∼1245 mL g −1 ). 16 However, the reaction is hindered by the original passivated oxide layer on the Si surface and little hydrogen is released in pure water. 17 Moreover, the produced SiO 2 will still rapidly form on the Si surface during the hydrolysis reaction.…”

Section: Introductionmentioning

confidence: 99%

In Situ Formation of Li₂SiO₃-Li-NaCl Interface on Si and Its Effect on Hydrogen Evolution

Liu

Sun

et al. 2023

ACS Appl. Mater. Interfaces

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Silicon has emerged as a competitive candidate for hydrolytic hydrogen production due to its high theoretical hydrogen yield, low cost, and on-demand availability. However, the hydrolysis reaction is extremely restrained by passivated SiO2, including the original one on the Si surface and the generated one during hydrolysis, and almost no hydrogen is produced in pure water. Herein, the original SiO2 surface has been effectively removed by milling micro-Si mixed with a small amount of Li metal and NaCl. An artificial soluble interface on Si has been established containing Li2SiO3, Li, and NaCl. Once micro-Si is placed into water, fresh Si surface can be exposed and a weak LiOH solution can be generated due to the fast dissolution of the interface layer, resulting in the rapid liberation of hydrogen gas. Accordingly, the modified micro-Si displays a significantly enhanced hydrogen production in pure water at 30 °C (1213 mL g–1 H2 within 3.0 h), which is 2.0 and 4.7 times higher than that observed for ball-milled Si and raw Si in 0.06 M LiOH solution, respectively. In addition, it also exhibited an outstanding operation compatibility for practical uses. This work has proposed a green, effective, and scalable strategy to promote hydrogen production from the hydrolysis of Si-based systems.

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Hydrogen Production via Hydrolysis and Alcoholysis of Light Metal-Based Materials: A Review

et al. 2021

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As an environmentally friendly and high-density energy carrier, hydrogen has been recognized as one of the ideal alternatives for fossil fuels. One of the major challenges faced by “hydrogen economy” is the development of efficient, low-cost, safe and selective hydrogen generation from chemical storage materials. In this review, we summarize the recent advances in hydrogen production via hydrolysis and alcoholysis of light-metal-based materials, such as borohydrides, Mg-based and Al-based materials, and the highly efficient regeneration of borohydrides. Unfortunately, most of these hydrolysable materials are still plagued by sluggish kinetics and low hydrogen yield. While a number of strategies including catalysis, alloying, solution modification, and ball milling have been developed to overcome these drawbacks, the high costs required for the “one-pass” utilization of hydrolysis/alcoholysis systems have ultimately made these techniques almost impossible for practical large-scale applications. Therefore, it is imperative to develop low-cost material systems based on abundant resources and effective recycling technologies of spent fuels for efficient transport, production and storage of hydrogen in a fuel cell-based hydrogen economy.

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Mild hydrogen production from the hydrolysis of Al–Bi–Zn composite powder

Cited by 24 publications

References 23 publications

On-Demand Hydrogen Generation by the Hydrolysis of Ball-Milled Aluminum–Bismuth–Zinc Composites

On-Demand Hydrogen Generation by the Hydrolysis of Ball-Milled Aluminum–Bismuth–Zinc Composites

In Situ Formation of Li₂SiO₃-Li-NaCl Interface on Si and Its Effect on Hydrogen Evolution

Hydrogen Production via Hydrolysis and Alcoholysis of Light Metal-Based Materials: A Review

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Mild hydrogen production from the hydrolysis of Al–Bi–Zn composite powder

Cited by 24 publications

References 23 publications

On-Demand Hydrogen Generation by the Hydrolysis of Ball-Milled Aluminum–Bismuth–Zinc Composites

On-Demand Hydrogen Generation by the Hydrolysis of Ball-Milled Aluminum–Bismuth–Zinc Composites

In Situ Formation of Li2SiO3-Li-NaCl Interface on Si and Its Effect on Hydrogen Evolution

Hydrogen Production via Hydrolysis and Alcoholysis of Light Metal-Based Materials: A Review

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In Situ Formation of Li₂SiO₃-Li-NaCl Interface on Si and Its Effect on Hydrogen Evolution