Mild hydrogen production from the hydrolysis of Al–Bi–Zn composite powder. (24th February 2021)

• Record Type: Journal Article
• Authors: Wang, Cuiping; Qiu, Changrui; Wei, Haiting; Zou, Hongwei; Lin, Kairui; Guo, Yihui; Yang, Shuiyuan; Liu, Xingjun
• Is Part Of: International journal of hydrogen energy. Volume 46:Number 14(2021)
• Page Start: 9314
• Page End: 9323
• Publication Date: 2021-02-24
• Subjects: Al–Bi–Zn composite powder -- Gas atomization -- Hydrogen production performance -- Morphology evolution; Hydrogen as fuel -- Periodicals; Hydrogène (Combustible) -- Périodiques; Hydrogen as fuel; Periodicals; 665.81
• DOI: 10.1016/j.ijhydene.2020.12.104
• Languages: English
• ISSNs: 0360-3199

Abstract

Abstract: The development of mild hydrogen-generating materials is of great significance to improve the working life of hydrogen–oxygen fuel cells. In this study, Al–Bi–Zn composite powders were designed by phase diagram calculation and then prepared via the gas atomization method. The results indicated that the conversion yield of Al–12Bi–7Zn (wt.%) powder reached 98% with stable hydrogen production within 280 min at 50 °C. When composite powder reacted with NaCl solution to produce hydrogen, the dormant period of the reaction process was significantly shortened, but the conversion rate was slightly reduced. Additionally, the evolution of powder morphology during the reaction was investigated. The results showed that the continuous cracking of the powder led to the continuous exposure of fresh Al to react. Highlights: The Al–Bi–Zn composite powder was successfully designed by phase diagram calculation. The composite powder showed mild hydrogen production performance. The Al–Bi–Zn composite powder had a good conversion rate without stirring. The evolution of powder morphology during the reaction was investigated.