Hydrogen storage property of materials composed of Mg nanoparticles and Ni nanoparticles fabricated by gas evaporation method

被引：32

作者：

Fujimoto, Taishi ^{[1
]}

Ogawa, Satoshi ^{[1
]}

Kanai, Tomomi ^{[2
]}

Uchiyama, Naoki ^{[2
]}

Yoshida, Tomoko ^{[1
,3
]}

Yagi, Shinya ^{[1
,3
]}

机构：

[1] Nagoya Univ, Grad Sch Engn, Dept Mat Phys & Energy Engn, Chikusa Ku, Nagoya, Aichi 4648603, Japan

[2] ATSUMITEC Co Ltd, R&D Div Energy & Environm, Nishi Ku, Hamamatsu, Shizuoka 4310102, Japan

[3] Nagoya Univ, EcoTopia Sci Inst, Chikusa Ku, Nagoya, Aichi 4648603, Japan

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2015年 / 40卷 / 35期

基金：

日本学术振兴会;

关键词：

Hydrogen storage materials; Mg nanoparticle; Ni nanoparticle; Gas evaporation method; Quartz crystal microbalance; X-ray photoelectron spectroscopy;

D O I：

10.1016/j.ijhydene.2015.05.031

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：

We have fabricated the materials composed of the Mg and the Ni nanoparticles and clarified the hydrogen storage property by using TEM, XPS and QCM. The Mg and the Ni nanoparticles have been fabricated by gas evaporation method and been mixed. The diameters of the Mg and the Ni nanoparticles have been estimated as 20.0 +/- 8.4 and 4.7 +/- 2.0 nm, respectively. And the Mg and the Ni nanoparticles as prepared sample possess almost clean surface. This sample can absorb the hydrogen under atmospheric pressure at 30 degrees C before completely oxidized. However, the hydrogen storage ability of this sample has been lost by the adsorption of residual gases even under vacuum condition in several hours after the end of fabrication. Due to the Mg oxide shell on the surface of the Mg nanoparticles is formed by the residual gases, the hydrogenation of the Mg nanoparticles are hindered. Copyright (C) 2015, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：11890 / 11894

页数：5

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