Mild hydrogen production from the hydrolysis of Al–Bi–Zn composite powder |
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Authors: | Cuiping Wang Changrui Qiu Haiting Wei Hongwei Zou Kairui Lin Yihui Guo Shuiyuan Yang Xingjun Liu |
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Affiliation: | 1. College of Materials and Fujian Provincial Key Laboratory of Materials Genome, Xiamen University, Xiamen, 361005, China;2. Institute of Materials Genome and Big Data, Harbin Institute of Technology, Shenzhen, 518055, China;3. Shenzhen R&D Center for Al-based Hydrogen Hydrolysis Materials, Shenzhen, 518055, China |
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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. |
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Keywords: | Al–Bi–Zn composite powder Gas atomization Hydrogen production performance Morphology evolution |
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