2009
DOI: 10.1016/j.ijhydene.2009.07.028
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A novel method for generating hydrogen by hydrolysis of highly activated aluminum nanoparticles in pure water

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Cited by 212 publications
(83 citation statements)
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“…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. However, these methods, accompanying with potential pollution, high cost and additional energy supply, are not very attractive.…”
Section: Introductionmentioning
confidence: 99%
“…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. However, these methods, accompanying with potential pollution, high cost and additional energy supply, are not very attractive.…”
Section: Introductionmentioning
confidence: 99%
“…As a result, the fresh Al surfaces will be exposed to water and the hydrolysis proceeding is promoted. 19) Combined with the promotion role of CaO additives, the higher hydrolysis activity of AlCaONaCl composites is obtained compared with that of AlCaO and AlNaCl materials.…”
Section: Effect Of Nacl Salt Additivementioning
confidence: 98%
“…The hydrolysis products are mainly composed of AlO(OH), which has been discussed in literature. 19) On the other hand, CaO additives in composites are also dissolved in water environment during hydrolysis reaction as follows:…”
Section: Proposed Mechanismmentioning
confidence: 99%
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“…are very active when they come in contact with water, react spontaneously, generating hydrogen and heat. Based on this chemical property, the hydrolysis reaction of pure aluminum powder is commonly used for high purity hydrogen generation [6,11,12,13,14].Although the use of pure aluminum in reaction with water to produce hydrogen is a viable method, it is expensive, if it takes into account the cost of producing pure aluminum and the use of an alkali metal hydroxide, also an expensive product. The alkali metal hydroxide is used to remove the protective layer of aluminum oxide on the surface of the aluminum particles, which prevent the contact between the metal and water, and thus slow down or substantially avoid reaction between the aluminum and water [15,16,17,18] .As a result, other methods should be studied and utilized to activate the surface of the aluminum particles, to initiate and accelerate the reaction of hydrolysis.…”
Section: Introductionmentioning
confidence: 99%