Titre :

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

Auteur(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]

Titre de la revue :

Journal of Nanomaterials

Numéro :

2012

Titre du fascicule / de la collection :

Light-Metal-Based Nanostructures for Energy and Biomedical Applications

Pagination :

1-8

Date de publication :

2012

Discipline(s) HAL :

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

Résumé en anglais : [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 ...
Lire la suite >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.Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

Université de Lille
ENSCL
CNRS
INRA

Collections :

• Unité Matériaux et Transformations (UMET) - UMR 8207

Équipe(s) de recherche :

Métallurgie Physique et Génie des Matériaux

Date de dépôt :

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