Magnesium-based hydrogen storage material and method for preparing the same

US9764951B2 · kind B2 · utility

Assignee

• South China University of Technology · CN

Inventors

• Min Zhu · Los Altos Hills, US
• Huaijun Lin · 流花街道, CN
• Liuzhang Ouyang · Longbeilingcun, CN
• Hui Wang
• Jiangwen Liu · 流花街道, CN
• Weihua Wang · Dongguan, CN
• Deqian Zhao · Beijing, CN

Key dates

• Filing date: Dec 20, 2013
• Grant date: Sep 19, 2017
• Expiry date: Feb 18, 2034

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E60/32
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A method for preparing a magnesium-based hydrogen storage material, includes: a Mg—Ce—Ni family amorphous alloy is prepared by a rapid cooling process; the amorphous alloy is pulverized, so as to obtain a amorphous powder; the amorphous alloy is activated, so as to obtain a MgH2—Mg2NiH4—CeH2.73 family nanocrystalline composite; the abovementioned composite is carried out a hydrogen absorption and desorption cycle, then the composite is placed in a pure Ar atmosphere for passivation, finally, the passivated composite is oxidized, so as to obtain a MgH2—Mg2NiH4—CeH2.73—CeO2 family nanocrystalline composite.