The effects of Ti-based additives on the kinetics and reactions in LiH/MgB2 hydrogen storage system

被引：34
作者：
Zhang, Yao [1 ]
Morin, Francois [2 ]
Huot, Jacques [2 ]
机构：
[1] Chinese Acad Sci, Dalian Inst Chem Phys, Mat & Thermochem Lab, Dalian 116023, Peoples R China
[2] Univ Quebec Trois Rivieres, Inst Rech Hydrogene, Trois Rivieres, PQ G9A 5H7, Canada
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2011年 / 36卷 / 09期
基金：
中国国家自然科学基金;
关键词：
Kinetics; Reactions; Hydrogen storage; Ti-based additive; LiH/MgB2; mixture; LIBH4; MGH2; COMPOSITE;
D O I：
10.1016/j.ijhydene.2011.01.135
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：
In this work we investigated the effect of Ti, TiH2, TiB2, TiCl3, and. TiF3 additives on the hydrogen de/re-sorption kinetics and reaction pathways of LiH/MgB2 mixture. From high pressure differential scanning calorimeter (HP-DSC) measurements it was found that these additives all effectively decrease the onset temperature of hydrogenation. The isothermal hydrogenation/dehydrogenation measurements suggest that Ti, TiH2, and TiB2 can significantly improve the hydrogen sorption kinetics of LiH/MgB2 mixture. The absorption kinetics of TiF3 and TiCl3 doped samples are slower than the baseline (2LiH-MgB2 without additive), but their desorption kinetics are faster than the baseline and other additives doped systems. X-ray diffraction (XRD) analysis reveals that the additive Ti in LiH/MgB2 actively participates in both hydrogenation and dehydrogenation process, which can be regarded as an effective additive of this system. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：5425 / 5430
页数：6
相关论文
共 22 条
[1]   Modified lithium borohydrides for reversible hydrogen storage [J].
An, M ;
Jurgensen, A .
JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (13) :7062-7067
[2]   Structure and Dynamics for LiBH4-LiCl Solid Solutions [J].
Arnbjerg, Lene M. ;
Ravnsbaek, Dorthe B. ;
Filinchuk, Yaroslav ;
Vang, Ronnie T. ;
Cerenius, Yngve ;
Besenbacher, Flemming ;
Jorgensen, Jens-Erik ;
Jakobsen, Hans Jorgen ;
Jensen, Torben R. .
CHEMISTRY OF MATERIALS, 2009, 21 (24) :5772-5782
[3]   Modified lithium borohydrides for reversible hydrogen storage (2) [J].
Au, Ming ;
Jurgensen, Arthur ;
Zeigler, Kristine .
JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (51) :26482-26487
[4]   Role of additives in LiBH4-MgH2 reactive hydride composites for sorption kinetics [J].
Boesenberg, U. ;
Kim, J. W. ;
Gosslar, D. ;
Eigen, N. ;
Jensen, T. R. ;
von Colbe, J. M. Bellosta ;
Zhou, Y. ;
Dahms, M. ;
Kim, D. H. ;
Guenther, R. ;
Cho, Y. W. ;
Oh, K. H. ;
Klassen, T. ;
Bormann, R. ;
Dornheim, M. .
ACTA MATERIALIA, 2010, 58 (09) :3381-3389
[5]   Hydrogen sorption properties of MgH2-LiBH4 composites [J].
Boesenberg, Ulrike ;
Doppiu, Stefania ;
Mosegaard, Lene ;
Barkhordarian, Gagik ;
Eigen, Nico ;
Borgschulte, Andreas ;
Jensen, Torbert R. ;
Cerenius, Yngve ;
Gutfleisch, Oliver ;
Klassen, Thomas ;
Dornheim, Martin ;
Bormann, Ruediger .
ACTA MATERIALIA, 2007, 55 (11) :3951-3958
[6]   Improving solid-state hydriding and dehydriding properties of the LiBH4 plus MgH2 system with the addition of Mn and V dopants [J].
Crosby, Kyle ;
Wan, Xuefei ;
Shaw, Leon L. .
JOURNAL OF POWER SOURCES, 2010, 195 (21) :7380-7385
[7]   Microstructural study of the LiBH4-MgH2 reactive hydride composite with and without Ti-isopropoxide additive [J].
Deprez, E. ;
Justo, A. ;
Rojas, T. C. ;
Lopez-Cartes, C. ;
Minella, C. Bonatto ;
Boesenberg, U. ;
Dornheim, M. ;
Borrnann, R. ;
Fernandez, A. .
ACTA MATERIALIA, 2010, 58 (17) :5683-5694
[8]   Oxidation State and Local Structure of Ti-Based Additives in the Reactive Hydride Composite 2LiBH4 + MgH2 [J].
Deprez, E. ;
Munoz-Marquez, Miguel A. ;
Roldan, Manuel A. ;
Prestipino, C. ;
Javier Palomares, F. ;
Minella, C. Bonatto ;
Boesenberg, U. ;
Dornheim, M. ;
Bormann, R. ;
Fernandez, A. .
JOURNAL OF PHYSICAL CHEMISTRY C, 2010, 114 (07) :3309-3317
[9]   The catalytic effect of additive Nb2O5 on the reversible hydrogen storage performances of LiBH4-MgH2 composite [J].
Fan, Mei-Qiang ;
Sun, Li-Xian ;
Zhang, Yao ;
Xu, Fen ;
Zhang, Jian ;
Chu, Hai-liang .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2008, 33 (01) :74-80
[10]   Significantly improved dehydrogenation of LiBH4 destabilized by TiF3 [J].
Guo, Y. H. ;
Yu, X. B. ;
Gao, L. ;
Xia, G. L. ;
Guo, Z. P. ;
Liu, H. K. .
ENERGY & ENVIRONMENTAL SCIENCE, 2010, 3 (04) :465-470
123