化工进展2017，Vol.36Issue(12)：4462-4467,6.DOI:10.16085/j.issn.1000-6613.2017-0473
Raney Ni催化碱性硼氢化钠溶液水解制氢
Hydrogen production from hydrolysis of alkaline sodium borohydride solution using Raney nickel catalyst
摘要
Abstract
In this work, Raney Ni catalyst was prepared by treating the NiAl alloy powder with alkaline solution. The obtained catalyst was then used for the catalytic hydrolysis of sodium borohydride (NaBH4)solution toward hydrogen generation. Field-emission scanning electron microscopy and nitrogen absorption/desorption method were carried out to characterize the microstructure of the catalyst. Effects of the reaction solution composition, reaction temperature, catalyst amount and reusing operation on the hydrogen generation rate(HGR)were investigated. The results showed that when the concentration of NaBH4 and NaOH was 15% and 10%, respectively, HGR was as high as 1085mL/(min·g) at 25℃ and the apparent activation energy was measured to be 38.6kJ/mol. A good linear relationship was established between the hydrogen volume per minute and the catalyst amount. The HGR was decreased by 78% after recycled for four times, which could be attributed to the accumulation of boron compounds and the oxidation of nickel.关键词
制氢/RaneyNi/硼氢化钠/水解/催化Key words
hydrogen production/Raney Ni/sodium borohydride/hydrolysis/catalysis分类
化学化工引用本文复制引用
魏磊,马麦霞,付君宇,高静,董晓龙,魏丕叶..Raney Ni催化碱性硼氢化钠溶液水解制氢[J].化工进展,2017,36(12):4462-4467,6.基金项目
河北省自然科学基金(B2017408042)、河北省教育厅资助科研项目(BJ2016044)及廊坊师范学院科学研究项目(LSLB201701). （B2017408042）
