镓和锡元素对铝合金水解产氢性能的影响  

Effect of Ga and Sn on the Hydrogen Production of Al Alloy

作　　者：韦小凤 冯济强 张忠康 蔡尚峰 容建峰 覃善会 

机构地区：[1]广西经济科技开发中心有限公司,广西南宁530022 [2]广西大学资源环境与材料学院,广西南宁530004

出　　处：《大众科技》2023年第5期40-44,共5页Popular Science & Technology

基　　金：韦小凤1冯济强张²忠康?蔡尚峰’容建峰1覃善会1(1.广西经济科技开发中心有限公司,广西南宁530022;2.广西大学资源环境与材料学院,广西南宁530004)。

摘　　要：用金属熔炼法制备Al-Ga二元和Al-Ga-Sn三元合金,通过XRD、SEM及EDS研究Ga和Sn含量对Al-Ga-Sn三元合金的微观组织和水解产氢性能的影响,以探讨Al-Ga-Sn三元合金的水解产氢机理。结果表明:随着Ga、Sn含量的增加,Al-Ga-Sn合金的水解产氢性能逐渐提高,Al-10%Ga-10%Sn合金的水解产氢性能最好,产氢速率最大为32.7mL/(g·min),产氢转化率为36%。合金中形成的第二相与铝基体存在较大的电位差,两者之间的电化学反应促进了铝合金的水解反应,反应优先从第二相或者缺陷处发生并向基体扩展。Al Ga binary and Al Ga Sn ternary alloys were prepared by metal melting method.The effect of Ga and Sn contents on the microstructure and hydrolysis hydrogen production performance of AI-Ga-Sn ternary alloy was studied by XRD,SEM,and EDS.The hydrolysis hydrogen production mechanism of Al-Ga-Sn ternary alloy was explored.The results show that with the increase of Ga and Sn content,the hydrolysis hydrogen production performance of Al Ga Sn alloy gradually improves.The hydrolysis hydrogen production performance of Al-10%Ga-10%Sn alloy is the best,with a maximum hydrogen production rate of 32.7 mL/(g:min)and a hydrogen production conversion rate of 36%.There is a significant potential difference between the second phase formed in the alloy and the aluminum matrix,and the electrochemical reaction between the two promotes the hydrolysis reaction of the aluminum alloy.The reaction preferentially occurs from the second phase or defect and extends towards the matrix.

关 键 词：AlGaSn合金 微观结构 制氢机理 

分 类 号：TQ116[化学工程—无机化工]