摘要
实验通过排水法研究了复合催化剂Co2B/TiO2对NaBH4水解放氢性能的影响。研究结果显示,复合催化剂Co2B/TiO2配比以及加入量对NaBH4的放氢量的影响不是很明显,当改变复合催化剂的加入量以及复合催化剂的配比时,NaBH4的水解放氢量都介于343375mL之间。然而,NaBH4水解放氢速率的研究发现,复合催化剂Co2B/TiO2加入量以及复合催化剂配比对NaBH4的水解放氢速率的影响非常大,当复合催化剂的加入量在1%4%的变化区间时,掺杂复合催化剂的试样的放氢速率随着掺杂量的增加都呈现出了一个明显的增加趋势,在所有掺杂复合催化剂Co2B/TiO2的试样中,掺杂5%Co2B/2TiO2试样的放氢速率最大,达到了187.5mL/min。
The effect of compound catalyst Co2B/TiO2 on hydrogen generation by hydrolysis of NaBH4 was studied through drainage method.The results show that the effects of the proportioning and amount of Co2B/TiO2 on amount of hydrogen release of NaBH4 are not obvious.Changing the proportioning and the amount of Co2B/TiO2,the amount of hydrogen release by hydrolysis of NaBH4 is between 343-375 mL.However,the study on the rate of hydrogen release finds that the effects of the proportioning and amount of Co2B/TiO2 on the rate of hydrogen release are very marked.The rate of hydrogen release of samples doped with Co2B/TiO2 presents an obvious increase with the amount of Co2B/TiO2 when the amount of Co2B/TiO2 is 1%-4%.Among all the samples doped with Co2B/TiO2,the rate of hydrogen release of the sample doped with 5% Co2B/2TiO2 is the largest and reaches 187.5mL/min.
出处
《金属功能材料》
CAS
2015年第6期13-17,共5页
Metallic Functional Materials
基金
国家自然科学基金(50806007)
陕西省自然基金(2014JM7262)
长安大学校基金(CHD2011ZD008)
关键词
NABH4
复合催化剂
放氢量
放氢速率
NaBH4
compound catalyst
amount of hydrogen release
rate of hydrogen release
