Hydrogen-isotope scrambling on doped sodium alanate

被引：56

作者：

Bellosta von Colbe, JM ^{[1
]}

Schmidt, W ^{[1
]}

Felderhoff, M ^{[1
]}

Bogdanovic, B ^{[1
]}

Schüth, F ^{[1
]}

机构：

[1] Max Planck Inst Kohlenforsch, D-45470 Mulheim, Germany

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2006年 / 45卷 / 22期

关键词：

aluminum; deuterium; hydrogen storage; hydrogen; reaction kinetics;

D O I：

10.1002/anie.200504425

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Titanium facilitates hydrogen dissociation at the surface of sodium alanate, an extensively studied hydrogen-storage material, and diffusion of hydrogen into the bulk, according to hydrogen-isotope scrambling experiments on Ti-doped NaAlH4 (see picture). Kinetics studies indicate that the rate-limiting step of the charging/discharging process appears to be mass transfer into the solid. (Figure Presented). © 2006 Wiley-VCH Verlag GmbH & Co. KGaA.

引用

页码：3663 / 3665

页数：3

共 14 条

[1] Hydrogen desorption kinetics in transition metal modified NaAlH4 [J].

Anton, DL .

JOURNAL OF ALLOYS AND COMPOUNDS, 2003, 356 :400-404

[2] Ti-doped NaAlH4 as a hydrogen-storage material -: preparation by Ti-catalyzed hydrogenation of aluminum powder in conjunction with sodium hydride [J].

Bogdanovic, B ;

Schwickardi, M .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2001, 72 (02) :221-223

[3] 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

[4]

BOGDANOVIC B, ADV MAT

[5] First-principles study of Ti-catalyzed hydrogen chemisorption on an Al surface:: A critical first step for reversible hydrogen storage in NaAlH4 [J].

Chaudhuri, S ;

Muckerman, JT .

JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (15) :6952-6957

[6] Combined TEM-EDX and XAFS studies of Ti-doped sodium alanate [J].

Felderhoff, M ;

Klementiev, K ;

Grünert, W ;

Spliethoff, B ;

Tesche, B ;

Bellosta von Colbe, JM ;

Bogdanovic, B ;

Härtel, M ;

Pommerin, A ;

Schüth, F ;

Weidenthaler, C .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2004, 6 (17) :4369-4374

[7] Nanocrystalline alanates -: Phase transformations, and catalysts [J].

Fichtner, M ;

Canton, P ;

Kircher, O ;

León, A .

JOURNAL OF ALLOYS AND COMPOUNDS, 2005, 404 :732-737

[8] X-ray absorption study of Ti-activated sodium aluminum hydride [J].

Graetz, J ;

Reilly, JJ ;

Johnson, J ;

Ignatov, AY ;

Tyson, TA .

APPLIED PHYSICS LETTERS, 2004, 85 (03) :500-502

[9] Kinetic study and determination of the enthalpies of activation of the dehydrogenation of titanium- and zirconium-doped NaAlH4 and Na3AlH6 [J].

Kiyobayashi, T ;

Srinivasan, SS ;

Sun, DL ;

Jensen, CM .

JOURNAL OF PHYSICAL CHEMISTRY A, 2003, 107 (39) :7671-7674

[10] Chemical state and local structure around titanium atoms in NaAlH4 doped with TiCl3 using X-ray absorption spectroscopy [J].

Léon, A ;

Kircher, O ;

Rothe, J ;

Fichtner, M .

JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (42) :16372-16376

← 1 2 →