一种能温和产氢且具有高活性保持能力的Al-Bi-Zn基复合粉体  

High activity retention Al−Bi−Zn-base composite powder with mild hydrogen generation

作　　者：王翠萍[1,2] 余方拯 黄岩 王明帅[1,2] 邓睿 郭毅慧 张锦彬 杨水源[1,2] 刘兴军[1,3,4] Cui-ping WANG;Fang-zheng YU;Yan HUANG;Ming-shuai WANG;Rui DENG;Yi-hui GUO;Jin-bin ZHANG;Shui-yuan YANG;Xing-jun LIU(Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials,College of Materials,Xiamen University,Xiamen 361005,China;Xiamen Key Laboratory of High Performance Metals and Materials,Xiamen University,Xiamen 361005,China;Institute of Materials Genome&Big Data,Harbin Institute of Technology,Shenzhen 518055,China;Shenzhen R&D Center for Al-based Hydrogen Hydrolysis Materials,Shenzhen 518055,China)

机构地区：[1]厦门大学材料学院福建省表界面工程与高性能材料重点实验室,厦门361005 [2]厦门大学厦门市高性能金属材料重点实验室,厦门361005 [3]哈尔滨工业大学材料基因与大数据研究院,深圳518055 [4]深圳铝基水解制氢材料研发工程研究中心,深圳518055

出　　处：《Transactions of Nonferrous Metals Society of China》2024年第5期1427-1440,共14页中国有色金属学报（英文版）

基　　金：General Program of Natural Science Foundation of Shenzhen,China(No.JCYJ20220531095212027)。

摘　　要：通过相图计算和气体雾化的方法,设计并制备Al-10Bi-7Zn和Al-10Bi-7Zn-1.5X (X:Cu, Fe, Ni)(质量分数,%)复合粉体。研究Cu、Fe和Ni对Al-Bi-Zn基复合粉体水解制氢性能的影响。通过X射线衍射(XRD)和扫描电子显微镜(SEM)以及能量色散谱(EDS)分析对粉体的组成和形貌进行表征。水解制氢性能测试结果表明,添加Cu、Fe或Ni可以改变Al-10Bi-7Zn三元合金复合粉体的制氢速率,并且提高其抗氧化性能。在四元复合粉体体系中,Al-10Bi-7Zn-1.5Ni表现出最佳的制氢性能,在60℃下与蒸馏水反应时,500 min内的产氢率为75.3%(954.1 m L/g),在储存7 d后(30℃,相对湿度60%),1500 min内保持57.9%(733.7 m L/g)的产氢率。此外,机理研究表明,在Al-Bi-Zn基复合粉体中添加Cu、Fe或Ni可以稳定Al基体,抑制复合粉体在空气中的开裂,保持粉体的高活性。Al-10Bi-7Zn and Al-10Bi-7Zn-1.5X(X:Cu,Fe,Ni,in wt.%)composite powders were designed and prepared through phase diagram calculation and gas atomization method.The effects of Cu,Fe,and Ni on the hydrolysis of Al-Bi-Zn-base composite powders for hydrogen production were investigated respectively.The composition and morphology of powders were characterized by X-ray diffraction(XRD)and scanning electron microscopy(SEM)with energy disperse spectroscopy(EDS)analyses.Hydrolysis performance test results indicate that the additions of Cu,Fe,or Ni can modify the hydrogen production rate and enhance oxidation resistance in Al-10Bi-7Zn ternary alloy composite powder.In the quaternary composite powder system,Al-10Bi-7Zn-1.5Ni(wt.%)exhibits the best performance with the hydrogen generation yield of 75.3%(954.1 mL/g)within 500 min when reacting with distilled water at 60°C and maintains a hydrogen yield of 57.9%(733.7 mL/g)within 1500 min after being stored(30°C,relative humidity of 60%)for 7 d.In addition,the mechanism investigation suggested that the additions of Cu,Fe,or Ni in Al-Bi-Zn-base composite powders can stabilize the Al matrix to retain the high activity of powders resulting from inhibiting the cracking of composite powders in the air.

关 键 词：铝合金 气雾化 水解反应 制氢 抗氧化 

分 类 号：TG139.7[一般工业技术—材料科学与工程]