Synthesis and dehydriding process of crystalline Ce(BH4)3

被引：30

作者：

Gennari, F. C. ^{[1
]}

Esquivel, M. R. ^{[1
]}

机构：

[1] Ctr Atom Bariloche CNEA, San Carlos De Bariloche, Rio Negro, Argentina

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 485卷 / 1-2期

关键词：

Hydrogen storage; Borohydrides; Dehydriding; Mechanical milling; HYDROGEN STORAGE; THERMAL-DECOMPOSITION; METAL; STABILITY; REVERSIBILITY; HYDRIDES; LIBH4;

D O I：

10.1016/j.jallcom.2009.06.078

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：

The synthesis of a new borohydride with a theoretical hydrogen capacity of 6 5 wt% is reported. Both XRD and FTIR studies demonstrate that Ce(BH4)(3) is obtained from mechanochemical reaction between CeCl3 and LiBH4. Dehydriding properties of Ce(BH4)(3) were investigated using XRD, DSC and volumetry using a Sievert-type device. Thermal decomposition of Ce(BH4)(3) led to 3 5 wt% hydrogen release in a multi-step process, involving an unknown intermediate compound and CeH2 It was observed that Ce(BH4)(3) IS partially reversible under 6 MPa of H-2 at 350 degrees C and absorbs 28% of the total hydrogen capacity obtained experimentally. The activation energy of Ce(BH4)(3) decomposition is 136 kJ mol(-1). (C) 2009 Elsevier B.V All rights reserved.

引用

页码：L47 / L51

页数：5

共 28 条

[1] Stability and Reversibility of Lithium Borohydrides Doped by Metal Halides and Hydrides [J].

Au, Ming ;

Jurgensen, Arthur R. ;

Spencer, William A. ;

Anton, Donald L. ;

Pinkerton, Frederick E. ;

Hwang, Son-Jong ;

Kim, Chul ;

Bowman, Robert C., Jr. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (47) :18661-18671

[2] 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

[3] Synthesis and thermal stability of Zr(BH4)4 and Zr(BD4)4 produced by mechanochemical processing [J].

Gennari, F. C. ;

Fernandez Albanesi, L. ;

Rios, I. J. .

INORGANICA CHIMICA ACTA, 2009, 362 (10) :3731-3737

[4] Thermal decomposition of the non-interstitial hydrides for the storage and production of hydrogen [J].

Grochala, W ;

Edwards, PP .

CHEMICAL REVIEWS, 2004, 104 (03) :1283-1315

[5] NMR confirmation for formation of [B12H12]2- complexes during hydrogen desorption from metal borohydrides [J].

Hwang, Son-Jong ;

Bowman, Robert C., Jr. ;

Reiter, Joseph W. ;

Rijssenbeek, Job ;

Soloveichik, Grigorii L. ;

Zhao, Ji-Cheng ;

Kabbour, Houria ;

Ahn, Channing C. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (09) :3164-3169

[6] Mechanochemical synthesis and thermal decomposition of zinc borohydride [J].

Jeon, Eun ;

Cho, YoungWhan .

JOURNAL OF ALLOYS AND COMPOUNDS, 2006, 422 (1-2) :273-275

[7] Reversible hydrogen storage in LiBH4-MH2 (M = Ce, Ca) composites [J].

Jin, Seon-Ah ;

Lee, Young-Su ;

Shim, Jae-Hyeok ;

Cho, Young Whan .

JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (25) :9520-9524

[8] Thermal decomposition behavior of calcium borohydride Ca(BH4)2 [J].

Kim, Jae-Hun ;

Jin, Seon-Ah ;

Shim, Jae-Hyeok ;

Cho, Young Whan .

JOURNAL OF ALLOYS AND COMPOUNDS, 2008, 461 (1-2) :L20-L22

[9] Identification of the Dehydrogenated Product of Ca(BH4)2 [J].

Kim, Yoonyoung ;

Reed, Daniel ;

Lee, Young-Su ;

Lee, Ji Youn ;

Shim, Jae-Hyeok ;

Book, David ;

Cho, Young Whan .

JOURNAL OF PHYSICAL CHEMISTRY C, 2009, 113 (14) :5865-5871

[10] REACTION KINETICS IN DIFFERENTIAL THERMAL ANALYSIS [J].

KISSINGER, HE .

ANALYTICAL CHEMISTRY, 1957, 29 (11) :1702-1706

← 1 2 3 →