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内蒙古自治区呼和浩特市赛罕区大学西街235号 邮编: 010021
作者机构:Xiamen Univ Coll Mat Fujian Key Lab Surface & Interface Engn High Perf Xiamen 361005 Peoples R China Xiamen Univ Xiamen Key Lab High Performance Met & Mat Xiamen 361005 Peoples R China Harbin Inst Technol Inst Mat Genome & Big Data Sch Mat Sci & Engn Shenzhen 518055 Peoples R China Shenzhen R&D Ctr Al Based Hydrogen Hydrolysis Mat Shenzhen 518055 Peoples R China
出 版 物:《MATERIALS》 (材料)
年 卷 期:2022年第15卷第19期
页 面:6702-6702页
核心收录:
学科分类:0806[工学-冶金工程] 08[工学] 0805[工学-材料科学与工程(可授工学、理学学位)] 080502[工学-材料学] 0703[理学-化学] 0702[理学-物理学]
基 金:Shenzhen Strategic Emerging Industry Project Key-area Research and Development Program of Guang Dong Province [2019B010943001]
主 题:hydrolysis reaction hydrogen generation gas atomization Al-based powder
摘 要:Fe additives may play an important role in the preparation of aluminum-based hydrolysis hydrogen powder, with high hydrogen yield, low cost, and good oxidation resistance. Therefore, it is necessary to ascertain the effect of Fe on the hydrogen production performance of Al-Bi-Sn composite powders. According to the calculated vertical cross-section of the Al-10Bi-7Sn-(0 similar to 6)Fe (wt.%) quasi-binary system, Al-10Bi-7Sn-xFe (x = 0, 0.5, 1.5, 3) wt.% composite powders for hydrogen production were prepared by the gas-atomization method. The results showed that the Al-10Bi-7Sn-1.5Fe (wt.%) powder exhibited an extremely fast hydrogen generation rate at 50 degrees C, which reached 1105 mL.g(-1) in 27 min in distilled water, 1086 mL.g(-1) in 15 min in 0.1 mol.L-1 NaCl solution, and 1086 mL.g(-1) in 15 min in 0.1 mol.L-1 CaCl2 solution. In addition, the antioxidant properties of these powders were also investigated. The results showed that the hydrogen production performance of the Al-10Bi-7Sn-1.5Fe (wt.%) powder could retain 91% of its hydrogen production activity, even though the powder was exposed to 25 degrees C and 60 RH% for 72 h. The addition of Fe not only promoted the hydrogen generation rate of the Al-Bi-Sn composite powders, but also improved their oxidation resistance. The Al-10Bi-7Sn-1.5Fe (wt.%) composite powder shows great potential for mobile hydrogen source scenarios with rapid hydrogen production.