Kinetic- and thermodynamic-based improvements of lithium borohydride incorporated into activated carbon

被引：148

作者：

Fang, Z. Z. ^{[1
]}

Wang, P. ^{[1
]}

Rufford, T. E. ^{[2
]}

Kang, X. D. ^{[1
]}

Lu, G. Q. ^{[2
]}

Cheng, H. M. ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China

[2] Univ Queensland, Sch Engn, ARC Ctr Excellence Funct Nanomat, Brisbane, Qld 4072, Australia

来源：

ACTA MATERIALIA | 2008年 / 56卷 / 20期

关键词：

Hydrogn storage; Lithium borohydride; Activated carbon; Nanoconfinement;

D O I：

10.1016/j.actamat.2008.08.033

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

LiBH4 was incorporated into an activated carbon (AC) scaffold using a chemical impregnation method. Confinement of LiBH4 Within the carbon nanopores was found to significantly improve both the hydrogen sorption kinetics and thermodynamics, compared to the bulk hydride. The LiBH4/AC sample starts to release hydrogen from just 220 degrees C, which is 150 degrees C lower than the onset dehydrogenation temperature of bulk LiBH4. The dehydrogenation rate of the LiBH4/AC sample was one order of magnitude faster than that of bulk The temperature and hydrogen pressure conditions required for restoring the hydride were also significantly reduced when LiBH4 was incorporated into AC. Preliminary study showed that the dissociation hydrogen pressure of LiBH4 Could be enhanced by around one order of magnitude upon incorporating the hydride into AC. X-ray diffraction, Fourier transform infrared spectroscopy and nitrogen adsorption analyses were used to confirm the nanostructure of LiBH4 in the AC scaffold. (C) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：6257 / 6263

页数：7

共 32 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] Facilitated hydrogen storage in NaAlH4 supported on carbon nanoribers [J].

Balde, Cornelis P. ;

Hereijgers, Bart P. C. ;

Bitter, Johannes H. ;

de Jong, Krijn P. .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2006, 45 (21) :3501-3503

[3] 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

[4] Ti-doped alkali metal aluminium hydrides as potential novel reversible hydrogen storage materials [J].

Bogdanovic, B ;

Schwickardi, M .

JOURNAL OF ALLOYS AND COMPOUNDS, 1997, 253 (1-2) :1-9

[5] Interaction of hydrogen with metal nitrides and imides [J].

Chen, P ;

Xiong, ZT ;

Luo, JZ ;

Lin, JY ;

Tan, KL .

NATURE, 2002, 420 (6913) :302-304

[6] Coherent carbon cryogel-ammonia borane nanocomposites for H2 storage [J].

Feaver, Aaron ;

Sepehri, Saghar ;

Shamberger, Patrick ;

Stowe, Ashley ;

Autrey, Tom ;

Cao, Guozhong .

JOURNAL OF PHYSICAL CHEMISTRY B, 2007, 111 (26) :7469-7472

[7] Enhanced hydrogen storage kinetics of LiBH4 in nanoporous carbon scaffolds [J].

Gross, Adam F. ;

Vajo, John J. ;

Van Atta, Sky L. ;

Olson, Gregory L. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (14) :5651-5657

[8] Nanoscaffold mediates hydrogen release and the reactivity of ammonia borane [J].

Gutowska, A ;

Li, LY ;

Shin, YS ;

Wang, CMM ;

Li, XHS ;

Linehan, JC ;

Smith, RS ;

Kay, BD ;

Schmid, B ;

Shaw, W ;

Gutowski, M ;

Autrey, T .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2005, 44 (23) :3578-3582

[9] Development of catalytically enhanced sodium aluminum hydride as a hydrogen-storage material [J].

Jensen, CM ;

Gross, KJ .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2001, 72 (02) :213-219

[10] Reversible hydrogen storage in LiBH4 destabilized by milling with Al [J].

Kang, Xiang-Dong ;

Wang, Ping ;

Ma, Lai-Peng ;

Cheng, Hui-Ming .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2007, 89 (04) :963-966

← 1 2 3 4 →