Study on the Stability of NaBH4 Solution during Storage Process

被引：0

作者：

Sim, Woojong ^{[1
]}

Jo, Jaeyoung ^{[1
]}

Choi, Daeki ^{[2
]}

Nam, Sukwoo ^{[2
]}

Park, Kwonpil ^{[1
]}

机构：

[1] Sunchon Natl Univ, Dept Chem Engn, 315 Maegok Dong, Suncheon Si 540742, Jeonnam, South Korea

[2] Korea Inst Sci & Technol, Fuel Cell Res Ctr, Seoul 136791, South Korea

来源：

KOREAN CHEMICAL ENGINEERING RESEARCH | 2010年 / 48卷 / 03期

关键词：

Sodium Borohydride; Stability; Hydrogen Generation; NaOH; Hydrolysis; Fuel Cell;

D O I：

暂无

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Stability of sodium borohydride solution during storage was studied. In order to enhance the NaBH4 stability, NaOH and KOH were added to the NaBH4 solution. The effect of concentration of the borohydride and alkaline solution, temperature and materials of storage vessels on the rate of borohydride hydrolysis was investigated. The rate of hydrogen evolution decreased as the concentration of alkaline increased due to increase of NaBH4 stability in the solution. The stability of NaBH4 solution decreased when the borohydride concentration raised from 10 to 15 wt% and then increased when the NaBH4 concentration increased above 15 wt% due to increase in the pH of the concentrated solution. The activity coefficient of hydrolysis of NaBH4 solution(NaOH 3.0 wt%, NaBH4 25 wt%) was 115.1 kJ/mol and this value was 1.54.0 times higher than that of hydrolysis of NaBH4 solution with catalyst. The borohydride solutions in glass and stainless-steel vessel were more stable than the solution in plastic(PE) vessel.

引用

页码：322 / 326

页数：5

共 11 条

[1] A safe, portable, hydrogen gas generator using aqueous borohydride solution and Ru catalyst [J].

Amendola, SC ;

Sharp-Goldman, SL ;

Janjua, MS ;

Spencer, NC ;

Kelly, MT ;

Petillo, PJ ;

Binder, M .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2000, 25 (10) :969-975

[2] Effects of electroless deposition conditions on microstructures of cobalt-phosphorous catalysts and their hydrogen generation properties in alkaline sodium borohydride solution [J].

Eom, KwangSup ;

Cho, KeunWoo ;

Kwon, HyukSang .

JOURNAL OF POWER SOURCES, 2008, 180 (01) :484-490

[3] Hydrogen production from solid sodium borohydride [J].

Gislon, P. ;

Monteleone, G. ;

Prosini, P. P. .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2009, 34 (02) :929-937

[4] A study on hydrogen generation from NaBH4 solution using the high-performance Co-B catalyst [J].

Jeong, SU ;

Kim, RK ;

Cho, EA ;

Kim, HJ ;

Nam, SW ;

Oh, IH ;

Hong, SA ;

Kim, SH .

JOURNAL OF POWER SOURCES, 2005, 144 (01) :129-134

[5] HYDROGEN GENERATION BY HYDROLYSIS OF SODIUM TETRAHYDROBORATE - EFFECTS OF ACIDS AND TRANSITION-METALS AND THEIR SALTS [J].

KAUFMAN, CM ;

SEN, B .

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1985, (02) :307-313

[6] PtRu-LiCoO2 -: an efficient catalyst for hydrogen generation from sodium borohydride solutions [J].

Krishnan, P ;

Yang, TH ;

Lee, WY ;

Kim, CS .

JOURNAL OF POWER SOURCES, 2005, 143 (1-2) :17-23

[7] A structured Co-B catalyst for hydrogen extraction from NaBH4 solution [J].

Lee, Jaeyoung ;

Kong, Kyung Yong ;

Jung, Chang Ryul ;

Cho, Eunae ;

Yoon, Sung Pil ;

Han, Jonghee ;

Lee, Tai-Gyu ;

Nam, Suk Woo .

CATALYSIS TODAY, 2007, 120 (3-4) :305-310

[8] A review: Hydrogen generation from borohydride hydrolysis reaction [J].

Liu, B. H. ;

Li, Z. P. .

JOURNAL OF POWER SOURCES, 2009, 187 (02) :527-534

[9] Long-term stability of sodium borohydrides for hydrogen generation [J].

Minkina, Valentina G. ;

Shabunya, Stanislav I. ;

Kalinin, Vladimir I. ;

Martynenko, Vladimir V. ;

Smirnova, Aleutina L. .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2008, 33 (20) :5629-5635

[10] Pd-C powder and thin film catalysts for hydrogen production by hydrolysis of sodium borohydride [J].

Patel, N. ;

Patton, B. ;

Zanchetta, C. ;

Fernandes, R. ;

Guella, G. ;

Kale, A. ;

Miotello, A. .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2008, 33 (01) :287-292

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