Enhancement of the Hydrogen Storage Properties of Mg/C Nanocomposites Prepared by Reactive Milling with Molybdenum

被引：7

作者：

Han Zongying ^{[1
,2
]}

Zhou Shixue ^{[1
]}

Chen Haipeng ^{[1
]}

Niu Haili ^{[1
]}

Wang Naifei ^{[1
]}

机构：

[1] Shandong Univ Sci & Technol, Coll Chem & Environm Engn, Qingdao 266590, Peoples R China

[2] China Univ Min & Technol, Sch Chem & Environm Engn, Beijing 100083, Peoples R China

来源：

JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION | 2017年 / 32卷 / 02期

基金：

中国国家自然科学基金;

关键词：

magnesium hydride; reactive milling; hydrogenation rate; dehydrogenation temperature; SORPTION PROPERTIES; CRYSTAL-STRUCTURE; KINETICS; MO; ABSORPTION; DESORPTION; CARBON; ALLOY; PHASE; FE;

D O I：

10.1007/s11595-017-1596-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of Mo on the morphology, crystal structure and hydrogen sorption properties of Mg/C composites prepared by reactive milling was studied. Transmission electron microscopic (TEM) observation shows that Mg/C composites prepared with the addition of Mo are of nanoscale with particle size about 20-120 nm after 3 h of milling under 1 MPa H-2. MgH2 of tetrahedral crystal structure predominates in the materials with the geometric shape of oblique hexagonal prism. From X-ray diffraction (XRD) and hydrogen content studies, Mo and crystallitic carbon have a synergistic effect on promoting the hydrogenation rate in the reactive milling process. From differential scanning calorimetric (DSC) studies, the dehydrogenation peak temperature of the Mg/C materials with Mo is lowered to 299-340 degrees C.

引用

页码：299 / 304

页数：6

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