Kinetics of Ru-promoted sulphated zirconia catalysed hydrogen generation by hydrolysis of sodium tetrahydroborate

被引：84

作者：

Demirci, U. B. ^{[1
]}

Garin, F. ^{[1
]}

机构：

[1] ULP, ECPM, LMSPC, CNRS, F-67000 Strasbourg, France

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2008年 / 279卷 / 01期

关键词：

hydrogen; kinetics; Ru-promoted sulphated zirconia; sodium tetrahydroborate;

D O I：

10.1016/j.molcata.2007.09.025

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：

Pure hydrogen can be catalytically generated by hydrolysis of sodium tetrahydroborate NaBH4. The present paper reports the kinetics of hydrolysis of aqueous alkaline solution of NaBH4. The investigated catalyst was 1 wt% Ru-promoted sulphated zirconia. The reaction orders for both NaBH4 and NaOH, the reaction order for Ru and the apparent activation energy were determined. The hydrogen generation rate can be written following a power law: r = k[NaBH4](0.23)[NaOH](-0.35)[Ru](1.27). The activation energy for the hydrogen generation reaction is of 76 kJ mol(-1). Otherwise, the present paper shortly reviews the kinetic data that are available in the open literature and notices the discrepancies that exist for these data. The kinetic data of the present study also contribute to these discrepancies. (c) 2007 Elsevier B.V. All rights reserved.

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收藏

页码：57 / 62

页数：6

相关论文

共 33 条

[21] Hydrogen-storage materials for mobile applications [J].

Schlapbach, L ;

Züttel, A .

NATURE, 2001, 414 (6861) :353-358

[22] NEW DEVELOPMENTS IN THE CHEMISTRY OF DIBORANE AND THE BOROHYDRIDES .1. GENERAL SUMMARY [J].

SCHLESINGER, HI ;

BROWN, HC ;

ABRAHAM, B ;

BOND, AC ;

DAVIDSON, N ;

FINHOLT, AE ;

GILBREATH, JR ;

HOEKSTRA, H ;

HORVITZ, L ;

HYDE, EK ;

KATZ, JJ ;

KNIGHT, J ;

LAD, RA ;

MAYFIELD, DL ;

RAPP, L ;

RITTER, DM ;

SCHWARTZ, AM ;

SHEFT, I ;

TUCK, LD ;

WALKER, AO .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1953, 75 (01) :186-190

[23] NEW DEVELOPMENTS IN THE CHEMISTRY OF DIBORANE AND THE BOROHYBRIDES .5. REACTIONS OF DIBORANE WITH ALKALI METAL HYDRIDES AND THEIR ADDITION COMPOUNDS - NEW SYNTHESES OF BOROHYDRIDES - SODIUM AND POTASSIUM BOROHYDRIDES [J].

SCHLESINGER, HI ;

BROWN, HC ;

HOEKSTRA, HR ;

RAPP, LR .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1953, 75 (01) :199-204

[24] NEW DEVELOPMENTS IN THE CHEMISTRY OF DIBORANE AND OF THE BOROHYDRIDES .6. THE PREPARATION OF SODIUM BOROHYDRIDE BY THE HIGH TEMPERATURE REACTION OF SODIUM HYDRIDE WITH BORATE ESTERS [J].

SCHLESINGER, HI ;

BROWN, HC ;

FINHOLT, AE .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1953, 75 (01) :205-209

[25] NEW DEVELOPMENTS IN THE CHEMISTRY OF DIBORANE AND OF THE BOROHYDRIDES .9. SODIUM BOROHYDRIDE, ITS HYDROLYSIS AND ITS USE AS A REDUCING AGENT AND IN THE GENERATION OF HYDROGEN [J].

SCHLESINGER, HI ;

BROWN, HC ;

FINHOLT, AE ;

GILBREATH, JR ;

HOEKSTRA, HR ;

HYDE, EK .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1953, 75 (01) :215-219

[26] Semiempirical hydrogen generation model using concentrated sodium borohydride solution [J].

Shang, Yinghong ;

Chen, Rui .

ENERGY & FUELS, 2006, 20 (05) :2149-2154

[27] Catalytic generation of hydrogen by applying fluorinated-metal hydrides as catalysts [J].

Suda, S ;

Sun, YM ;

Liu, BH ;

Zhou, Y ;

Morimitsu, S ;

Arai, K ;

Tsukamoto, N ;

Uchida, M ;

Candra, Y ;

Li, ZP .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2001, 72 (02) :209-212

[28] Sodium borohydride as the hydrogen supplier for proton exchange membrane fuel cell systems [J].

Wee, Jung-Ho ;

Lee, Kwan-Young ;

Kim, Sung Hyun .

FUEL PROCESSING TECHNOLOGY, 2006, 87 (09) :811-819

[29] Hydrogen generation utilizing alkaline sodium borohydride solution and supported cobalt catalyst [J].

Ye, Wei ;

Zhang, Huamin ;

Xu, Dongyan ;

Ma, Li ;

Yi, Baolian .

JOURNAL OF POWER SOURCES, 2007, 164 (02) :544-548

[30] Water dispersible acetate stabilized ruthenium(0) nanoclusters as catalyst for hydrogen generation from the hydrolysis of sodium borohyride [J].

Zahmakiran, Mehmet ;

Ozkar, Saim .

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2006, 258 (1-2) :95-103

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