Effects of Co introduction on hydrogen storage properties of Ti-Fe-Mn alloys

被引：61

作者：

Qu, Haiqin ^{[1
,2
]}

Du, Junlin ^{[1
]}

Pu, Chaohui ^{[1
]}

Niu, Yongqiang ^{[3
]}

Huang, Tiesheng ^{[1
]}

Li, Zhilin ^{[1
]}

Lou, Yuwan ^{[1
]}

Wu, Zhu ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, Res Ctr New Energy Technol, Shanghai 200050, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[3] North Univ China, Taiyuan 030051, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2015年 / 40卷 / 06期

基金：

上海市自然科学基金;

关键词：

Hydrogen storage materials; Pulverization resistance; Plateau property; Activation characteristic; IRON TITANIUM DEUTERIDE; SURFACE MODIFICATION; NEUTRON-DIFFRACTION; INTERMETALLICS; ABSORPTION; NICKEL;

D O I：

10.1016/j.ijhydene.2014.12.089

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：

TiFe0.86Mn0.1-xCox (x = 0, 0.04, 0.05, 0.06) alloys were prepared by RF magnetic levitation melting. These alloys are determined as a single CsCl type phase. As x increases from 0 to 0.06, the unit cell volume decreases while the maximum hydrogen capacity rises to a threshold and starts to reduce thereafter. The particle size test shows that the pulverization resistance of the alloys improves significantly with the introduction of Co. After that, the effects of further increasing of Co content in this series of alloys were investigated. It is found that the appropriate proportion of Mn and Co leads to a fairly flat beta phase dehydrogenation plateau. In addition, all the alloys could be easily activated. Among these alloys, TiFe0.86Mn0.05Co0.05 exhibits the highest hydrogen storage capacity of 1.98 wt.% at the temperature of 273K, while TiFe0.86Mn0.04Co0.1 presents the best plateau property. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：2729 / 2735

页数：7

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