Hydrogen generation from water and aluminum promoted by sodium stannate

Soler, Lluís; Candela, Angélica María; Macanás, Jorge; Muñoz, Marı́a; Casado, Juan

doi:10.1016/j.ijhydene.2009.11.065

Cited by 121 publications

(50 citation statements)

References 48 publications

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“…This value is consistent with the present tested result of an alloy with nearly the same compositions and Al grain size. The maximum value of 120 ml/min g Al is about 1/3 of that obtained from the activation of Al with gallam (6 wt.% gallam) [31], but two times higher than that obtained from Al promoted by sodium stannate [16].…”

Section: Reactivity Of Al Alloys With Watermentioning

confidence: 69%

Effect of composition on the reactivity of Al-rich alloys with water

Wang¹,

Chen²,

Zhao³

et al. 2012

International Journal of Hydrogen Energy

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Section: Reactivity Of Al Alloys With Watermentioning

confidence: 69%

Effect of composition on the reactivity of Al-rich alloys with water

Wang¹,

Chen²,

Zhao³

et al. 2012

International Journal of Hydrogen Energy

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“…The generation of hydrogen can be achieved by using highly corrosive basic solution such as sodium hydroxide (pH>13) [2]. Additives such as aluminum hydroxide [3], sodium stannate in sodium hydroxide solution [4], [5], hot water [6], CaO [7] were reported to be effective for enhanced generation of hydrogen, where serious corrosive conditions can be avoided. Alloying method such as Al-Ga alloys [8], [9], Bi doping [10], or milling additives such as SnCl 2 [10] or KCl/NaCl [11], and activated treatment on Al powders [12]- [14] are also employed to enhance the generation of hydrogen.…”

Section: Introductionmentioning

confidence: 99%

Rapid Hydrogen Generation from Aluminum-Water System Using Synthesized Aluminum Hydroxide Catalyst

Wang¹,

Chin²

2015

IJCEA

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Abstract-Catalytic effect of Al(OH) 3 on the hydrogen generation from Al/water system is evaluated. The Al(OH) 3 powders are synthesized from various molar ratios of Al(NO 3 ) 3 : NaOH = 1:3 ~ 1:5. It was found that the Al(OH) 3 catalyst derived from the ratio Al(NO 3 ) 3 : NaOH = 1:3.5~1:4 in an ice bath exhibits the best catalytic effect and exerts the highest hydrogen generation rate. Over 95% yield of hydrogen from a 3 g Al/50 ml water system (with 15 g Al(OH) 3 and pH=12) can be generated within 100 s. That is, by using specially synthesized Al(OH) 3 catalyst at a Al:Al(OH) 3 :H 2 O=3:15:50 weight ratio, very rapid hydrogen generation rate (~667 ml/gAlmin), without using any alloying elements or extreme corrosive condition, can be realized.Index Terms-Aluminum hydroxide, aluminum nitrate, hydrogen generation.

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“…For example, Soler et al [8] and Dai et al [9] used an alkaline solution to assist Al-water reaction. Other researchers [10e20] activated Al by alloying Al with low melting point metals such as Ga, In, Bi, Hg, and Zn, etc.…”

Section: Introductionmentioning

confidence: 99%