Title :

Preparation and Hydrogen Storage Properties of Mg-Rich Mg-Ni Ultrafine Particles

Author(s) :

Zou, Jianxin [Auteur]
Shanghai Jiao Tong University [Shanghai]
Sun, Haiquan [Auteur]
Shanghai Jiao Tong University [Shanghai]
Zeng, Xiaoqin [Auteur]
Shanghai Jiao Tong University [Shanghai]
Ji, Gang [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Ding, Wenjiang [Auteur]
Shanghai Jiao Tong University [Shanghai]

Journal title :

Journal of Nanomaterials

Volume number :

2012

Issue number :

Light-Metal-Based Nanostructures for Energy and Biomedical Applications

Pages :

1-8

Publication date :

2012

HAL domain(s) :

Chimie/Matériaux
Physique [physics]/Matière Condensée [cond-mat]/Science des matériaux [cond-mat.mtrl-sci]

English abstract : [en]

In the present work, Mg-rich Mg-Ni ultrafine powders were prepared through an arc plasma method. The phase components, microstructure, and hydrogen storage properties of the powders were carefully investigated. It is found ...
Show more >In the present work, Mg-rich Mg-Ni ultrafine powders were prepared through an arc plasma method. The phase components, microstructure, and hydrogen storage properties of the powders were carefully investigated. It is found that Mg2Ni and MgNi2 could be obtained directly from the vapor state reactions between Mg and Ni, depending on the local vapor content in the reaction chamber. A nanostructured MgH2 + Mg2NiH4 hydrogen storage composite could be generated after hydrogenation of the Mg-Ni ultrafine powders. After dehydrogenation, MgH2 and Mg2NiH4 decomposed into nanograined Mg and Mg2Ni, respectively. Thermogravimetry/differential scanning calorimetry (TG/DSC) analyses showed that Mg2NiH4 phase may play a catalytic role in the dehydriding process of the hydrogenated Mg ultrafine particles.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

Université de Lille
ENSCL
CNRS
INRA

Collections :

• Unité Matériaux et Transformations (UMET) - UMR 8207

Research team(s) :

Métallurgie Physique et Génie des Matériaux

Submission date :

2019-05-16T15:31:08Z
2019-10-31T12:06:15Z
2020-03-30T07:55:49Z