Effect of Ti on the microstructure and Al–water reactivity of Al-rich alloy

He, Tiantian; Wang, W.; Chen, D.M.; Yang, Ke

doi:10.1016/j.ijhydene.2013.10.095

Cited by 35 publications

(10 citation statements)

References 44 publications

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“…The added low-melting-point metals can effectively destroy the oxide film and promote the reaction between aluminum and water. [33][34][35][36][37] Wang et al, utilized mechanical alloying method to prepare a series of Al alloys with Ga, In and Sn as the alloy elements. They found no hydrogen generation for the Al-Ga, Al-In, Al-Sn and Al-Ga-Sn alloys.…”

Section: Introductionmentioning

confidence: 99%

“…47 Previously, the preparation of Al-Ga-In-Sn-metals and Al-salt systems for the hydrogen production has been extensively studied. [33][34][35][36][48][49][50][51] However, the Al-Ga-In-Sn-NaCl composites have not been investigated in depth with respect to the hydrogen production. In this work, we prepared a series of Al-Ga-In-Sn-NaCl composites using mechanical ball milling.…”

Section: Introductionmentioning

confidence: 99%

“…for the activation of aluminum. The added low‐melting‐point metals can effectively destroy the oxide film and promote the reaction between aluminum and water 33‐37 . Wang et al, utilized mechanical alloying method to prepare a series of Al alloys with Ga, In and Sn as the alloy elements.…”

Section: Introductionmentioning

confidence: 99%

“…Previously, the preparation of Al‐Ga‐In‐Sn‐metals and Al‐salt systems for the hydrogen production has been extensively studied 33‐36,48‐51 . However, the Al‐Ga‐In‐Sn‐NaCl composites have not been investigated in depth with respect to the hydrogen production.…”

Section: Introductionmentioning

confidence: 99%

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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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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

et al. 2021

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“…In order to make Al react with water, different methods, based on the disruption of passive oxide lm on Al particles, have been developed, e.g. using an alkaline solution to assist the Al-water reaction, [8][9][10][11][12][13][14][15][16] alloying Al with Ga, In, Bi, Sn, Ca, Fe, etc., [17][18][19][20][21][22][23][24][25][26][27][28][29][30][31] mechanically milling Al metal with special oxide, soluble inorganic salt and carbon material, [32][33][34][35][36][37][38][39][40][41][42][43][44][45][46][47] and Al surface modication, [48][49][50][51][52][53][54] etc. All these approaches have made Al metal a promising hydrogen-generation material for portable fuel cell.…”

Section: Introductionmentioning

confidence: 99%