Effect of doped Ni-Bi-B alloy on hydrogen generation performance of Al-InCl3

Xu, Fen; Sun, Lixian; Zhang, Kexiang; Guo, Xiaolei; Zhang, Huanzhi; Fang, Yu; Yan, Erhu; Peng, Hongliang; Huang, Pengru; Qiu, Shujun; Xiang, Cuili; Sun, Yujie

doi:10.1016/j.jechem.2019.04.012

Cited by 23 publications

(6 citation statements)

References 51 publications

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“…The reaction durations are greatly shortened after ball milling with NiCl 2 and CoCl 2 . This is rarely achieved for most active Al alloys at room temperature [41,[44][45][46][47][48][49][50][51][52][53][54]. The hydrogen yields of active Al-3.8Ga-1.5In-0.7Sn alloy powders are similar under different activation methods, although with different HGR and reaction durations, as shown in Figure 6b.…”

Section: H2 Generation Performance Of Al Alloysmentioning

confidence: 95%

Enhanced Hydrogen Generation Performance of Al-Rich Alloys by a Melting-Mechanical Crushing-Ball Milling Method

et al. 2021

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The main problem for the application of hydrogen generated via hydrolysis of metal alloys is the low hydrogen generation rate (HGR). In this paper, active Al alloys were prepared using a new coupled method-melting-mechanical crushing-mechanical ball milling method to enhance the HGR at room temperature. This method contains three steps, including the melting of Al, Ga, In, and Sn ingots with low melting alloy blocks and casting into plates, then crushing alloy plate into powders and ball milling with chloride salts such as NiCl2 and CoCl2 were added during the ball milling process. The microstructure and phase compositions of Al alloys and reaction products were investigated via X-ray diffraction and scanning electron microscopy with energy dispersed X-ray spectroscopy. The low-melting-point Ga-In -Sn (GIS) phases contain a large amount of Al can act as a transmission medium for Al, which improves the diffusion of Al to Al/H2O reaction sites. Finer GIS phases after ball milling can further enhance the diffusion of Al and thus enhance the activity of Al alloy. The hydrogen generation performance through hydrolysis of water with Al at room temperature was investigated. The results show that the H2 generation performance of the Al-low-melting point alloy composite powder is significantly higher than the results reported to date. The highest H2 generation rate and H2 conversion efficiency can reach 5337 mL·min−1·g−1 for the hydrolysis of water with 1 g active alloy.

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Section: H2 Generation Performance Of Al Alloysmentioning

confidence: 95%

Enhanced Hydrogen Generation Performance of Al-Rich Alloys by a Melting-Mechanical Crushing-Ball Milling Method

et al. 2021

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“…[10][11][12][13][14] Aluminum is abundant in the earth's crust and has a high energy storage capacity. [15][16][17] Theoretically, 1 g of aluminum reacts with water can produce 1360 mL of hydrogen under the condition of 1 atm and 25 C, which is higher than the hydrogen production of the same amount of Mg, Zn, and Fe. The reaction is described as follows:…”

Section: Introductionmentioning

confidence: 97%

“…Recently, hydrogen production from aluminum‐water reaction has attracted widespread attention due to its ability to solve the hydrogen storage and transportation problems 10‐14 . Aluminum is abundant in the earth's crust and has a high energy storage capacity 15‐17 . Theoretically, 1 g of aluminum reacts with water can produce 1360 mL of hydrogen under the condition of 1 atm and 25°C, which is higher than the hydrogen production of the same amount of Mg, Zn, and Fe.…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of the Al‐Ga‐In‐Sn‐KCl composites for hydrogen generation

et al. 2021

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The production of hydrogen through the aluminum‐water reaction has received increasing attention in recent years. In this study, a series of Al‐Ga‐In‐Sn‐KCl composites were prepared by mechanical ball milling for hydrogen generation. The effects of composite composition and preparation process on hydrogen generation are studied. It is determined that the optimal ball milling time for the Al‐6Ga‐2In‐1Sn‐1KCl, Al‐5Ga‐2In‐1Sn‐2KCl, and Al‐4Ga‐2In‐1Sn‐3KCl composites to reach their maximum hydrogen yield is 4, 7, and 9 hours, respectively. In particular, the 7 hours milled Al‐5Ga‐2In‐1Sn‐2KCl composite exhibits the best hydrogen generation properties among all composites, achieving a hydrogen yield of 1127 mL g−1 in pure water at 25°C. The microstructure characterization results show that the intermetallic compound In3Sn is formed in these three composites, and the three composites exhibit different morphologies due to their different compositions and different milling times. The effect of initial water temperature is also studied, and the best milled Al‐6Ga‐2In‐1Sn‐1KCl and Al‐5Ga‐2In‐1Sn‐2KCl composites are completely hydrolyzed as the water temperature rises to 60°C. Due to their good hydrogen production capacity, these composites are expected to become an energy source for real‐time hydrogen supply.

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“…In addition to metal additives, salts and carbon materials can also be employed to enhance the hydrogen production activity of Al-based composites. Among them, salt substances include NaCl, KCl, NiCl 2 , BaCl 2 , InCl 3 , and MgCl 2 , − and carbon materials are mainly graphite, graphene, graphene oxide, cellulose, and carbon nanotubes. − The addition of salts can cut the surface of Al during ball milling and the salts are embedded in the Al matrix to prevent the formation of an oxide film. Furthermore, numerous active sites for the reaction are provided by the dissolution of salts in water.…”

Section: Introductionmentioning

confidence: 99%

Investigation on the Hydrogen Production Performance and Hydrolysate Formation Mechanism of Al-Based Composites

et al. 2023

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Hydrogen production via Al-H 2 O reaction has potential uses in the fields of space thrusters, engines, and hydrogen fuel cells, where hydrogen production performance of Al-based composites is critical. In this study, low-cost active additives, including g-C 3 N 4 (CN) and NaCl were added to Al−In−Sn (AlIS) alloys by the mechanical ball milling method in order to substitute metal Ga and regulate the hydrogen production activity, as Ga not only increases the cost of Al-based materials but also adversely affects the recycling of products. The results demonstrate that both CN and NaCl additives can effectively enhance hydrogen production performance of AlIS in a single additive system. Further, when 5 wt % of CN and 2.5 wt % of NaCl are concurrently introduced, Al-based composites exhibit the highest hydrogen production efficiency of 94.45% at ambient temperature. The highest hydrogen production rate reaches 475 mL•s −1 •gAl −1 . Even at 2 °C, there is still 86.66% conversion efficiency. The hydrolysates of the Al-H 2 O reaction are composed of Al(OH) 3 and AlOOH, which are primarily influenced by the reaction temperature and the types of Al-based composites. The hydrolysate formation mechanism is analyzed and proposed.

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Effect of doped Ni-Bi-B alloy on hydrogen generation performance of Al-InCl3

Cited by 23 publications

References 51 publications

Enhanced Hydrogen Generation Performance of Al-Rich Alloys by a Melting-Mechanical Crushing-Ball Milling Method

Enhanced Hydrogen Generation Performance of Al-Rich Alloys by a Melting-Mechanical Crushing-Ball Milling Method

Preparation and characterization of the Al‐Ga‐In‐Sn‐KCl composites for hydrogen generation

Investigation on the Hydrogen Production Performance and Hydrolysate Formation Mechanism of Al-Based Composites

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