Preparation of Al-Ga-In-Sn-Bi quinary alloy and its hydrogen production via water splitting

Huang, Tzou‐Chi; Gao, Qian; Liú, Dan; Xu, Shaonan; Guo, Chunbin; Zou, Jingjing; Wei, Cundi

doi:10.1016/j.ijhydene.2014.12.034

Cited by 95 publications

(40 citation statements)

References 30 publications

(19 reference statements)

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“…The apparatus was used for hydrogen yield measurement has been illustrated in detail in our previous research [29]. Each sample was cut into a cylindrical sheet with a diameter of about 15 mm and a weight of 0.5 g. A 250 mL glass container was placed in a thermostatic water bath.…”

Section: Measurement Of Hydrogen Productionmentioning

confidence: 99%

Experimental Study on Zn-Doped Al-Rich Alloys for Fast on-Board Hydrogen Production

Liú

Gao

et al. 2020

Crystals

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For the purpose of investigating the effect of Zn replacement of In3Sn on the hydrogen production performance of Al-rich alloy ingots, Al-Ga-In3Sn alloys with various Zn dosages (0–5 wt.%) were prepared by a traditional melting and casting technique. The phase compositions and microstructures were characterized using X-ray diffractometer (XRD) and scanning electron microscope (SEM) with an Energy Dispersed X-ray system (EDS). The SEM results indicate that, with a small amount of Zn instead of In3Sn, the number and total area of grain boundary (GB) phases will decrease gradually, and the average single GB area will eventually stabilize. The distribution of Zn in the alloy is similar to that of Ga, and an area with high Zn content appeared in the high-Zn-doped sample. The melting behaviors of Al with other metals were measured by DSC. The reaction of these alloys and water were investigated at different temperatures. Compared with Al-Ga-In3Sn alloy, low addition of Zn changed the composition of GB phase and increased the maximum hydrogen production rate. The reason for the changes in the hydrolysis reaction of Al with the addition of Zn was discussed.

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Section: Measurement Of Hydrogen Productionmentioning

confidence: 99%

Experimental Study on Zn-Doped Al-Rich Alloys for Fast on-Board Hydrogen Production

Liú

Gao

et al. 2020

Crystals

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“…(c) H 2 generation dynamics using LM catalysts . (d) The morphology of Al after the catalytic reaction was complete . (e) The LM catalysts was employed to quickly fabricate a pattern on Al substrate .…”

Section: The Preparation and Related Applications Of Lm Catalystsmentioning

confidence: 99%

Progress, Mechanisms and Applications of Liquid‐Metal Catalyst Systems

Liang

Wang

Liu

2018

Chemistry A European J

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Among the significant growths of liquid metal (LM) research achieved over the past few years, the field of LM as catalysts offers promising opportunities for material scientists to exploit, and thus, burgeoning progress has been made. This article presents an overview of recent progress in developing LM catalysis, which spans from liquid-phase catalysts, photocatalysts, heterogeneous catalysts, and bimetallic catalysts, to catalysts based on liquid-metal/metal-oxide (LM/MO) frameworks. The different types, preparation methods, and typical applications of LM catalysts are classified and reviewed. Typical catalytic applications of LM systems discussed include the growth of graphene films/nanoribbons/carbon nanotube, photocatalytic degradation of CR or PFOA/splitting of H O/reduction of CO , and catalytic reactions like butane or acetylene dehydrogenation, methanol steam reforming, and reduction of potassium ferricyanide. The prospects, future trends, and challenges of LM catalysts are also mentioned.

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“…5 To ensure that metallic Al hydrolyze to produce hydrogen with a short induction time, the passive film must be destroyed or removed from Al surface. 6 During the past decades, researchers have made great progress in Al-hydrogen technology field and developed various methods to promote Al-water reaction, such as Al corrosion in alkaline solution, 7,8 Al alloys, [9][10][11][12] high energy milling, [13][14][15][16] and catalytic reaction. [17][18][19] For example, Macanas et al 7 developed a hydrogen production method from Al hydrolysis through adding inorganic promoters into water, because inorganic salts inhibited the repassivation of metal Al.…”

Section: Introductionmentioning

confidence: 99%

Effect of crystalline phases of aluminum hydroxide catalysts on Al‐water reaction

Gai

Zhang

Yang³

et al. 2020

Int J Energy Res

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Summary Previous works indicated that aluminum hydroxide could be acted as catalyst to speed up the hydrolysis reaction of Al, and the catalytic activity of aluminum hydroxide is related to its microscopic properties. In this work, the effect of crystalline phases of aluminum hydroxide catalysts on Al hydrolysis is researched systematically. The results show that the hydrogen production performance of Al hydrolysis catalyzed by aluminum hydroxide with different crystalline phases is obviously different, and the catalytic activity of different aluminum hydroxides is in the order of boehmite > bayerite > gibbsite. A possible mechanism is given, which reveals that the surface hydroxyl groups of aluminum hydroxide act as anchoring sites for the adsorption of H2O molecules and decrease the dissociative adsorption energy of H2O molecules on aluminum hydroxides surface, promoting the hydrolysis reaction of Al. Consequently, the difference in catalytic activity of aluminum hydroxide with different crystalline phases is attributed to the difference in surface hydroxyl group density. This study provides a new idea for the synthesization of aluminum hydroxide with excellent catalytic activity.

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Preparation of Al-Ga-In-Sn-Bi quinary alloy and its hydrogen production via water splitting

Cited by 95 publications

References 30 publications

Experimental Study on Zn-Doped Al-Rich Alloys for Fast on-Board Hydrogen Production

Experimental Study on Zn-Doped Al-Rich Alloys for Fast on-Board Hydrogen Production

Progress, Mechanisms and Applications of Liquid‐Metal Catalyst Systems

Effect of crystalline phases of aluminum hydroxide catalysts on Al‐water reaction

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