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標題: Evaluation of a new hydrogen generating system: Ni-rich magnesium alloy catalyzed by platinum wire in sodium chloride solution
作者: Cho, C.Y.
Wang, K.H.
Uan, J.Y.
關鍵字: hydrogen;corrosion;nickel;magnesium ingot;catalyst;fuel-cell;flame-retardant;ru catalyst;corrosion;hydroxide
Project: Materials Transactions
期刊/報告no:: Materials Transactions, Volume 46, Issue 12, Page(s) 2704-2708.
Fuel cells are often seen as a long-term solution to environmental problems such as CO2 emission associated with transportation. To ensure long-term sustainability and the supply of fuel, new renewable of hydrogen (H-2) generator have to be introduced. In this study, Ni-rich AZ91D magnesium alloy ingot, which was considered as waste material, was used as a H-2 generator in sodium chloride (NaCl) solution with catalyst. The chemical reaction Mg + H2O -> H-2 + Mg(OH)(2) Occurred in NaCl aqueous solution. The H-2 evolution rate depended on the solution's temperature (25 or 70 degrees C), length of catalyst (0.9 or 1.8 m) and the concentration of NaCl solution (5 or 10 mass%). The H-2 evolution rate increased with increasing the solution's temperature. The catalyst (Pt wire) could significantly improve the H-2 generation rate. In addition, the by-product of this method is Mg(OH)(2), a non-toxic chemical compound which is usually used as flame retardant.
ISSN: 1345-9678
DOI: 10.2320/matertrans.46.2704
Appears in Collections:材料科學與工程學系

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