The synthesis and hydrogen storage properties of pure nanostructured Mg2FeH6

被引：47

作者：

Zhang, Xuanzhou ^{[1
,2
]}

Yang, Rong ^{[2
]}

Qu, Jianglan ^{[2
]}

Zhao, Wei ^{[2
]}

Xie, Lei ^{[2
]}

Tian, Wenhuai ^{[1
]}

Li, Xingguo ^{[2
]}

机构：

[1] Univ Sci & Technol Beijing, Dept Mat Phys & Chem, Beijing 100083, Peoples R China

[2] Peking Univ, Coll Chem & Mol Engn, State Key Lab Rare Earth Mat Chem & Applicat, BNLMS, Beijing 100871, Peoples R China

来源：

NANOTECHNOLOGY | 2010年 / 21卷 / 09期

关键词：

MG-FE-H; MAGNESIUM HYDRIDE; DESORPTION PROPERTIES; ENERGY STORAGE; METAL-HYDRIDES; PARTICLE-SIZE; MIXTURE; NI; NANOCRYSTALLINE; DECOMPOSITION;

D O I：

10.1088/0957-4484/21/9/095706

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In this work, pure nanostructured Mg2FeH6 is successfully synthesized by sintering of a mixture of 2Mg + Fe nanoparticles. The successful preparation of pure Mg2FeH6 can be attributed to the small particle sizes of Mg and Fe nanoparticles prepared by hydrogen plasma-metal reaction (HPMR), which benefits the synthesis. The hydrogen storage properties of Mg2FeH6 and the synthesis mechanism of the Mg-Fe-H system are studied. The sample desorbs 5.0 wt% of hydrogen rapidly in 6 min under an initial hydrogen pressure of similar to 100 Pa at 623 K. The enthalpy and entropy of the reaction are deduced from the equilibrium plateau pressures of the desorption isotherms. The obtained Mg2FeH6 shows favorable hydrogen storage properties due to the specific nanostructure of the materials.

引用

页数：7

共 33 条

[21] Thermodynamic-kinetic characterization of the synthesized Mg2FeH6-MgH2 hydrides mixture [J].

Puszkiel, J. A. ;

Larochette, P. Arneodo ;

Gennari, F. C. .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2008, 33 (13) :3555-3560

[22] Investigations on the synthesis, structural and microstructural characterizations of Mg-based K2PtCl6 type (Mg2FeH6) hydrogen storage material prepared by mechanical alloying [J].

Raman, SSS ;

Davidson, DJ ;

Bobet, JL ;

Srivastava, ON .

JOURNAL OF ALLOYS AND COMPOUNDS, 2002, 333 (1-2) :282-290

[23] The application of Mg-based metal-hydrides as heat energy storage systems [J].

Reiser, A ;

Bogdanovic, B ;

Schlichte, K .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2000, 25 (05) :425-430

[24] Metal hydride materials for solid hydrogen storage: A review [J].

Sakintuna, Billur ;

Lamari-Darkrim, Farida ;

Hirscher, Michael .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2007, 32 (09) :1121-1140

[25] A panoramic overview of hydrogen storage alloys from a gas reaction point of view [J].

Sandrock, G .

JOURNAL OF ALLOYS AND COMPOUNDS, 1999, 293 :877-888

[26] SYNTHESIS OF MG2FEH6, MG2COH5 AND MG2NIH4 BY HIGH-PRESSURE SINTERING OF THE ELEMENTS [J].

SELVAM, P ;

YVON, K .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 1991, 16 (09) :615-617

[27] Direct mechanical synthesis and characterisation of Mg2Fe(Cu)H6 [J].

Shang, CX ;

Bououdina, M ;

Guo, ZX .

JOURNAL OF ALLOYS AND COMPOUNDS, 2003, 356 :626-629

[28] Preparation of Mg-based hydrogen storage materials from metal nanoparticles [J].

Shao, Huaiyu ;

Liu, Tong ;

Wang, Yuntao ;

Xu, Hairuo ;

Li, Xingguo .

JOURNAL OF ALLOYS AND COMPOUNDS, 2008, 465 (1-2) :527-533

[29] Preparation and hydrogen storage properties of Mg2Ni intermetallic nanoparticles [J].

Shao, HY ;

Xu, HR ;

Wang, YT ;

Li, XG .

NANOTECHNOLOGY, 2004, 15 (03) :269-274

[30] Particle size, grain size and γ-MgH2 effects on the desorption properties of nanocrystalline commercial magnesium hydride processed by controlled mechanical milling [J].

Varin, R. A. ;

Czujko, T. ;

Wronski, Z. .

NANOTECHNOLOGY, 2006, 17 (15) :3856-3865

← 1 2 3 4 →