摘要
LiAlH4与NH4Cl在醚类溶剂中反应放氢是一种新型的具有高储氢容量、能室温放氢的可控制氢技术。研究了摩尔比为1∶1的LiAlH4与NH4Cl(LiAlH4-NH4Cl)在二乙二醇二甲醚(dimethyl carbitol, DC)、正丁醚(dibutyl oxide, DO)和二恶烷(diethylene dioxide,DD)中反应的放氢行为。研究表明,LiAlH4-NH4Cl在DC中反应(LiAlH4-NH4Cl-DC)具有良好的放氢性能,在25,40,60℃的放氢量分别可以达到4.01%,4.53%和4.99%(质量分数)。LiAlH4-NH4Cl在DD和DO中反应(LiAlH4-NH4Cl-DD/DO)的放氢速率较慢、放氢量较低。LiAlH4在溶剂中的溶解度是影响体系放氢性能重要因素。
The reaction of LiAlH4 and NH4Cl in ether solvent is a new type of controllable hydrogen technology with high hydrogen storage capacity and room temperature hydrogen release. The hydrogen evolution behavior of LiAlH4 and NH4Cl(LiAlH4-NH4Cl) with a molar ratio of 1∶1 in dimethyl carbitol(DC), dibutyl oxide(DO) and diethylene dioxide(DD) was studied. Studies have shown that LiAlH4-NH4Cl reacted in DC(LiAlH4-NH4Cl-DC) achieved good hydrogen evolution performance, and the hydrogen release capacities at 25, 40, and 60 ℃ could reach 4.01%, 4.53%, and 4.99 wt%, respectively. The reaction of LiAlH4-NH4Cl in DD and DO(LiAlH4-NH4Cl-DD/DO) had a slower hydrogen release rate and a lower hydrogen release rate. The solubility of LiAlH4 in the solvent was an important factor affecting the hydrogen evolution performance of the system.
作者
王小炼
陈云贵
杨安春
刘虎成
程铭
吴朝玲
WANG Xiaolian;CHEN Yungui;YANG Anchun;LIU Hucheng;CHENG Ming;WU Chaoling(College of Mechanical Engineering,Chengdu University,Chengdu 610106,China;College of Materials Science and Engineering,Sichuan University,Chengdu 610065,China)
出处
《功能材料》
EI
CAS
CSCD
北大核心
2019年第11期11151-11154,共4页
Journal of Functional Materials
基金
四川省教育厅科研资助项目(18ZB0133)
成都大学校基金资助项目(2018XZB17)
