Improvement in hydrogen storage properties of MgH2 catalyzed with BaTiO3 additive

摘要：

　　The MgH2+20 wt.%BaTiO3 composites is prepared by ball milling MgH2 with 20 wt.%BaTiO3,and the effect of BaTiO3 on the hydrogen storage properties of the MgH2 is investigated.TPD(Temperature-programmed-desorption)results showed that with addition of BaTiO3,the onset dehydrogenation temperature of the composite is 270 oC,which is 149 oC lower than that of pure MgH2.And the hydrogen absorption/desorption rates of MgH2+20 wt.%BaTiO3 are 2.21 times and 2.12 times of pure MgH2 at certain temperatures and hydrogen pressures,respectively.Furthermore,BaTiO3 additives decreased the dehydriding activation energy of MgH2 from 116 kJ/mol to 108 kJ/mol.BaTiO3 plays an effective catalyst role in the hydrogenation/dehydrogenation process of MgH2.

作者: J S Wang W Zhang S M Han F Qin

作者单位: State Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao 0 State Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao 0 College of Environmental and Chemical Engineering,Yanshan University,Qinhuangdao 066004,PR China

会议类型: 国际会议

会议名称: 第二届新型材料与化学工业国际学术会议

会议地点: 三亚

会议语种:英文

页码: 1-7

在线出版日期: 2017-11-18（万方平台首次上网日期，不代表论文的发表时间）