片状Al-Ni合金快速水解制氢的研究  

The research of hydrogen production from rapid hydrolysis of sheet Al-Ni alloys

作　　者：胥小丽[1] 魏范松[1] 肖兵[1] 杨志轩[1] 王想花 

机构地区：[1]江苏科技大学材料科学与工程学院,江苏镇江212003

出　　处：《金属功能材料》2015年第6期18-23,共6页Metallic Functional Materials

基　　金：国家自然科学基金项目(50901036)

摘　　要：通过HVDS-П高真空甩带机熔炼制备一种能快速水解制氢的Al-Ni合金,考察了合金成分以及碱溶液浓度对铝水解制氢性能的影响。由水解曲线和XRD结果表明,添加一定量的Ni能有效的提高合金的活性,常温下该系列合金与水反应迅速。在20%浓度的KOH溶液中,反应速率由纯Al的1.53mL/(min·cm^2)增加到Al-3%Ni合金的2.31mL/(min·cm^2),同时显著地减少了制氢反应时间,Al-4%Ni合金能在60min内反应完全,而纯Al需要140min,反应时间是Al-4%Ni合金的2倍。由不同的碱溶液浓度得到的实验结果显示,碱浓度提高能直接加快反应速率。Al-4%Ni合金由1.99 mL/(min·cm^2)(15%KOH)增大到3.0 mL/(min·cm^2)(25%KOH)。A novel material for rapid generating hydrogen by splitting water,Al-Ni alloy,was prepared by HVDS-Пhigh vacuum machine.The effects of alloy composition and concentration of alkali solution were studied through the hydrolysis experiments and XRD analysis.The results showed that add a certain amount of Ni can improve the activity of the alloys.The hydrogen production rate increase from 1.53mL/（min·cm2）（x=0,in 20%KOH）to 2.31mL/（min·cm^2）（x=3,in 20%KOH）.The hydrogen reaction time of Al alloy was twice of Al-4%Ni alloy.The different alkali solution concentration experiments results showed that the alkali concentration can improve directly to speed up the reaction from 1.99mL/（min·cm^2）（x=4,in 15% KOH）to 3.0mL/（min·cm^2）（x=4,in25% KOH）.

关 键 词：铝镍合金 水解性能 反应速率 制氢产率 碱浓度 

分 类 号：TQ116.2[化学工程—无机化工] TG146.21[一般工业技术—材料科学与工程]