High-capacity complex hydrogen storage materials and a process of releasing hydrogen

US8961819B2 · kind B2 · utility

Assignee

• DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES · CN

Inventors

• Ping-Chen Chen · Taipei, TW
• Xueli Zheng · Tianjin, CN
• Hailiang Chu · Dalian, CN
• Zhitao Xiong · Dalian, CN
• Guotao Wu · Dalian, CN

Key dates

• Filing date: Dec 20, 2010
• Grant date: Feb 24, 2015
• Expiry date: Dec 25, 2033

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E60/36
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Disclosed herein provide compositions and hydrogen release methods for a high-capacity complex hydrogen storage material. The hydrogen storage material is mainly composed of metal borohydride and NH3. The invention advantageously adopt ammonia, one cheap and easily supplied material with high hydrogen content (17.6 wt %), as one of the hydrogen source, offering a safe and efficient way to store hydrogen and release hydrogen. Furthermore, the hydrogen storage material can be further catalyzed by a transition metal catalyst to improve the dehydrogenation kinetics. With the addition of catalyst, 0.2-10 equiv. H2 could be evolved at −100˜600° C., which might be applied on vehicles which are fueled by hybrid or fuel cell.