The hydrogen storage properties of MgH2-Fe3S4 composites

被引：62

作者：

Zhang, Wei ^{[1
,2
]}

Cheng, Ying ^{[2
]}

Han, Da ^{[3
,4
,5
]}

Han, Shumin ^{[1
,2
]}

机构：

[1] Yanshan Univ, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Peoples R China

[2] Yanshan Univ, Sch Environm & Chem Engn, Hebei Key Lab Appl Chem, Qinhuangdao 066004, Peoples R China

[3] Univ Florida, Dept Chem, Gainesville, FL 32611 USA

[4] Univ Florida, Dept Physiol & Funct Genom, Ctr Res Bio Nano Interface, Shands Canc Ctr, Gainesville, FL 32611 USA

[5] Univ Florida, UF Genet Inst, Gainesville, FL 32611 USA

来源：

ENERGY | 2015年 / 93卷

基金：

中国国家自然科学基金;

关键词：

Fe3S4; Magnesium hydride; Hydrogen storage kinetics; MGH2; DESORPTION; KINETICS; FE;

D O I：

10.1016/j.energy.2015.09.080

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

We report here a method of synthesizing MgH2-Fe3S4 composite with a series of remarkable hydrogen storage properties. For instance, compared to pure MgH2, three times higher hydrogen absorption weight (3.41 wt.% vs 0.98%) and two times faster hydrogen desorption rate (4.01 wt.% vs 2.32 wt.%) are seen in MgH2-Fe3S4 composite. Furthermore, the dehydrogenation temperature of MgH2 is also found to be reduced by 90 K with the addition of Fe3S4. By studying the reactions between MgH2 and Fe3S4 during the hydrogenation/dehydrogenation process, we found the formation of new phases (Fe and MgS) as well as their coordination play a remarkable effect on improving the hydrogen storage properties of MgH2. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：625 / 630

页数：6

共 21 条

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