Al-Ga-In-Sn-Bi alloy for hydrogen production and application of Al-Ga-In-Sn-Bi alloy to fuel cell

Abstract

The invention discloses a Al-Ga-In-Sn-Bi alloy for hydrogen production and application of the Al-Ga-In-Sn-Bi alloy to a fuel cell. The Al-Ga-In-Sn-Bi alloy can be obtained by introducing metal bismuth(Bi) into a Al-Ga-In-Sn alloy capable of manufacturing hydrogen through hydrolysis, wherein the contents of In, Sn and Bi by weight are 6%-10%; and the In, Sn and Bi are added according to the required atomic ratio of the In, Sn and Bi according to the mass percentage, wherein the molar amount of In3Sn is m, the molar amount of InSn4 is n, the molar amount of InBi is k, namely, the atomic ratio of the In, Sn and Bi is (3m+n+k):(m+4n):k, the m and n are both greater than or equal to 0 but not equal to 0 at the same time, and the k is greater than 0. According to the Al-Ga-In-Sn-Bi alloy for hydrogen production and the application, the contents of noble metals Ga and In are reduced by adding metal Bi, so that the cost is reduced; and in addition, intermittent phase particles with coexistence of Ga, In, Sn, Bi elements are formed by introducing the Bi, and the reaction rate of the intermittent phase particles and water can be effectively controlled on the premise that hydrogen productionefficiency by the alloy is guaranteed, so that the reaction is more stable, gentle and lasting to meet the requirements of the online hydrogen fuel cells.

Description

technical field [0001] The invention relates to the field of hydrogen production from aluminum alloys, in particular to an Al-Ga-In-Sn-Bi alloy capable of rapidly reacting with water to release hydrogen, a preparation method thereof, and its application in fuel cells. Background technique [0002] Fossil energy is closely related to people's daily life and has played an irreplaceable role in the development of human society. Whether it is the gas used in people's daily life, or the electric energy and heat energy used in industrial production, most of them are provided by fossil energy. However, this kind of traditional energy is a one-off non-renewable energy, and its unsustainability and continuous huge human consumption have led to its output gradually shrinking. In addition, the massive consumption of fossil fuels has resulted in the emission of a large amount of greenhouse gases, causing the global temperature to rise and the sea level to rise, which intensifies the gr...

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Problems solved by technology

[0008] In addition, in order to further improve the hydrogen production performance of aluminum alloys (increase the yield), the current common method is to make aluminum alloys into powder products, but there are obvious deficiencies in transportation and storage.

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