Hydrogen Storage Properties of MgH2-MoS2-Pyrolyzed Polyaniline Composite

被引：0

作者：

Liu Yang ^{[1
,2
]}

Li Yuan ^{[2
]}

Peng Dan-Dan ^{[2
]}

Guo Liang-Liang ^{[2
]}

Zhang Lu ^{[2
]}

Han Shu-Min ^{[1
,2
]}

机构：

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

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

来源：

CHINESE JOURNAL OF INORGANIC CHEMISTRY | 2017年 / 33卷 / 12期

关键词：

hydrogen storage material; magnesium hydride; composite; MoS2; pyrolyzed polyaniline; MGH2; GRAPHITE;

D O I：

10.11862/CJIC.2017.278

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A composite of MgH2-MoS2-PP (PP=pyrolyzed polyaniline, w(MoS2) =w(PP)=8.33%) was prepared by ball milling. In comparison to pure MgH2, the onset decomposition temperature of the composite decreases from 650 to 550 K and the hydrogen desorption content increases from 0.38% to 2.36% (w/w, the same below) at 573 K within 75 min. The composite can absorb 2.45%H-2 within 40 min, which is 2.13 times higher than that of the MgH2 at 423 K. The apparent activation energy of the composite is 101.83 kJ . mol(-1), decreasing by 28.81 kJ . mol(-1) compared to MgH2. The reason of superior hydrogen storage performance of the PP-MoS2-MgH2 composite is found to be that PP can effectively decrease the size of Mg particles and enhance the catalytic efficiency of MoS2 in the desorption-resorption cycling.

引用

页码：2296 / 2302

页数：7

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