Preliminary investigation on the catalytic mechanism of TiF3 additive in MgH2-TiF3 H-storage system

被引：0

作者：

Ma L.-P. ^{[1
]}

Wang P. ^{[1
]}

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

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

机构：

[1] Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences

来源：

J Mater Res | 2007年 / 7卷 / 1779-1786期

关键词：

D O I：

10.1557/jmr.2007.0239

中图分类号：

学科分类号：

摘要：

A combined structure/property investigation is performed to understand the catalytic effect of TiF3 additive on the absorption /desorption reactions of MgH2. It was found that both TiH2 and MgF2 phases identified by x-ray diffraction cannot explain the observed kinetic enhancement in the MgH2-TiF3 system, whether they are incorporated in a direct or an in situ manner. In combination with the comparative investigation on the catalytic activity of TiF3 and its analog TiCl3, as well as the samples milled under inert and reactive atmospheres, we propose that the catalytically active species is a multicomponent metastable phase composed of host Mg, transition metal Ti, and F anion, the catalytic activity of which is dependent on its interaction with the surrounding chemical environment. © 2007 Materials Research Society.

引用

收藏

页码：1779 / 1786

页数：7

相关论文

共 50 条

[41] Adjustment of the decomposition path for Na2LiAlH6 by TiF3 addition [J].

Fonnelop, Jon Erling ;

Lovvik, Ole Martin ;

Sorby, Magnus H. ;

Brinks, Hendrik W. ;

Hauback, Bjorn C. .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2011, 36 (19) :12279-12285

[42] A first principles study on the synergistic catalytic mechanism of anion, cation ions in TiF3, TiCl3 catalysts for LiBH4 hydrogen-storage materials [J].

Liu Gui-Li ;

Zhang Guo-Ying ;

Bao Jun-Shan ;

Zhang Hui .

ACTA PHYSICA SINICA, 2014, 63 (24) :248801

[43] Significantly improved hydrogen storage properties of Mg90Al10 catalyzed by TiF3 [J].

Yang, Lili ;

Li, Shujing ;

Chen, Jiawen ;

Liu, Jiangchuan ;

Zhu, Yunfeng ;

Liu, Yana ;

Zhang, Jiguang ;

Qiao, Yajing ;

Ba, Zhixin ;

Li, Liquan .

JOURNAL OF ALLOYS AND COMPOUNDS, 2022, 908

[44] Isothermal activation, thermodynamic and hysteresis of MgH2 hydrides catalytically modified by high-energy ball milling with MWCNTs and TiF3 [J].

Hou, Xiaojiang ;

Hu, Rui ;

Yang, Yanling ;

Feng, Lei .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2017, 42 (36) :22953-22964

[45] Electron-microscopy studies of NaAlH4 with TiF3 additive:: hydrogen-cycling effects [J].

Andrei, CM ;

Walmsley, JC ;

Brinks, HW ;

Holmestad, R ;

Srinivasan, SS ;

Jensen, CM ;

Hauback, BC .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2005, 80 (04) :709-715

[46] Electron-microscopy studies of NaAlH4 with TiF3 additive: hydrogen-cycling effects [J].

C.M. Andrei ;

J.C. Walmsley ;

H.W. Brinks ;

R. Holmestad ;

S.S. Srinivasan ;

C.M. Jensen ;

B.C. Hauback .

Applied Physics A, 2005, 80 :709-715

[47] Effect of K2TiF6 additive on the hydrogen storage properties of 4MgH2-LiAlH4 destabilized system [J].

Mustafa, N. S. ;

Idris, N. H. ;

Ismail, M. .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2015, 40 (24) :7671-7677

[48] Reactions of molecular CaF2 with [(C5Me5)TiF3] and [(C5Me4Et)TiF3]: symbiosis between ionic solids and organometallic compounds [J].

Pevec, A. ;

Demsar, A. ;

Gramlich, V. ;

Petricek, S. .

Journal of the Chemical Society.Dalton Transactions, (13)

[49] NAF-MNF2-TIF3 SYSTEM [J].

BARBALAT, C ;

VEDRINE, A .

REVUE DE CHIMIE MINERALE, 1974, 11 (03) :388-398

[50] Significant effect of TiF3 on the performance of 2NaAlH4-FCa(BH4)2 hydrogen storage properties [J].

Mustafa, N. S. ;

Ismail, M. .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2019, 44 (39) :21979-21987

← 1 2 3 4 5 →