Synthesis and characterization of a Mg-Ni-RE alloy for hydrogen storage

被引：7

作者：

Dell'Era, A. ^{[1
,2
]}

Pasquali, M. ^{[1
]}

Ciprioti, S. Vecchio ^{[1
]}

Lupi, C. ^{[3
]}

Brotzu, A. ^{[3
]}

Mura, F. ^{[1
]}

Tuffi, R. ^{[4
]}

机构：

[1] Sapienza Univ Rome, Dept SBAI, Via Castro Laurenziano 7, I-00161 Rome, Italy

[2] CNR, Ist Struttura Mat, Via Salaria,Km 29.300,Cp 10, I-00016 Rome, Italy

[3] Sapienza Univ Rome, Dept DICMA, Via Eudossiana 18, I-00184 Rome, Italy

[4] ENEA, Casaccia Res Ctr, Via Anguillarese 301, I-00123 Rome, Italy

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2017年 / 42卷 / 42期

关键词：

Hydrogen storage; Mg base alloy; Dynamic absorption/desorption conditions; Dehydrogenation kinetics; DEHYDROGENATION KINETICS; HYDRIDING PROPERTIES; DESORPTION BEHAVIOR; NANOCRYSTALLINE; MAGNESIUM; MG2NI; BALL; MICROSTRUCTURE; ABSORPTION; NANOTUBES;

D O I：

10.1016/j.ijhydene.2017.08.207

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The synthesis and characterization of a Mg-Ni alloy having La and Ce as catalysts, have been performed. The alloy behavior was studied at given fixed temperature and pressure during hydrogen absorption/desorption tests. The La and Ce addition was carried out starting from a commercial alloy, named "Firesteel". The alloy synthesized has the following formula Mg68Ni26M5X where X represents Si and Fe impurities and M stands for the mixture of rare earths metals. The alloy has been prepared by a melting process in an induction furnace equipped with a centrifugal casting system and then grinded, by both hydraulic press and ball milling. The alloy has been characterized by SEM, BET, XRD, DSC-TGA analysis and by a mass flow measurement apparatus. The experiments on alloy sample showed that, after activation, hydrogenation occurs at 300 C in three stages at three different pressures: 3, 4 and 7 atm, involving respectively 0.15 wt%, 0.4 wt% and 2.2 wt% of hydrogen absorbed. Reversible hydride dehydrogenation, inside the mass flow measurement apparatus, requires a working temperature of 350 degrees C to obtain, with remarkable reaction rate, about 2.7%, hydrogen desorption. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：26333 / 26342

页数：10

共 85 条

[1]

Akahira T., 1971, RES REPORT CHIBA I T, V16, P22

[2]

AlHallaj S, 2011, GREEN ENERGY TECHNOL, P1, DOI 10.1007/978-1-84628-467-0

[3]

[Anonymous], APPL PHYS A

[4] Kinetic investigation of the effect of milling time on the hydrogen sorption reaction of magnesium catalyzed with different Nb2O5 contents [J].

Barkhordarian, G ;

Klassen, T ;

Bormann, R .

JOURNAL OF ALLOYS AND COMPOUNDS, 2006, 407 (1-2) :249-255

[5] Thermal desorption of hydrogen from magnesium hydride (MgH2): An in situ microscopy study by environmental SEM and TEM [J].

Beattie, Shane D. ;

Setthanan, Uncharat ;

McGrady, G. Sean .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2011, 36 (10) :6014-6021

[6] Improvements of hydrogen storage properties of Mg-based mixtures elaborated by reactive mechanical milling [J].

Bobet, JL ;

Chevalier, B ;

Song, MY ;

Darriet, B .

JOURNAL OF ALLOYS AND COMPOUNDS, 2003, 356 :570-574

[7] Renewable and hydrogen energy integrated house [J].

Bocci, E. ;

Zuccari, F. ;

Dell'Era, A. .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2011, 36 (13) :7963-7968

[8] Influence of carbonaceous additives on hydrogen sorption properties of Mg-RE-Ni "pseudoalloys" [J].

Borisov, Dmitry N. ;

Fursikov, Pavel V. ;

Tarasov, Boris P. .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2011, 36 (01) :1326-1329

[9]

Broom DP, 2011, GREEN ENERGY TECHNOL, P1

[10]

BUSCHOW KHJ, 1984, HDB PHYSICS CHEM RAR, V6, pCH47

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