Cobalt boride catalysts for small-scale energy application / Simagina V.I., Ozerova A.M., Komova O.V., Odegova G.V., Kellerman D.G., Fursenko R.V., Odintsov E.S., Netskina O.V. // Catalysis Today. - 2015. - V. 242, l. Part A. - P. 221-229.

ISSN:

09205861

Type:

Article

Abstract:

The objects of investigation were cobalt boride catalysts for a one-step production of hydrogen from NaBH4. Cobalt oxides prepared by calcination of cobalt salts at 500°C were used as precursors of the catalyst active phase. It was shown that the nature of the cobalt oxide precursor has a substantial influence on the rate of formation of active component in the reaction medium of sodium borohydride and, hence, on its activity in NaBH4 hydrolysis. The length of the activation period and catalytic activity do not correlate with the dispersion and the specific surface area of the synthesized Co3O4 samples but depend on their inhomogeneity and the defect structure of the oxide due to the distribution of cobalt ions in the crystal lattice. The more defects are present in of Co3O4 the faster the rate of its reduction and, hence, the higher its catalytic activity in NaBH4 hydrolysis. On the basis of active oxide prepared from cobalt chloride, solid state NaBH4 pellets have been prepared. For the first time, NaBH4 pellets were used as a source of H2 source for a thermo-electrical energy conversion device based on combustion technologies. © 2014 Elsevier B.V. All rights reserved.

Author keywords:

Hydrogen generator; Hydrogen storage; Solid state NaBH4 pellet; Thermo-electrical energy converter

Index keywords:

Borides; Chlorine compounds; Cobalt; Crystal structure; Hydrogen storage; Hydrolysis; Pelletizing; Surface defects; Active components; Cobalt chlorides; Combustion technology; Electrical energy; Energ

DOI:

10.1016/j.cattod.2014.06.030

Смотреть в Scopus:

https://www.scopus.com/inward/record.uri?eid=2-s2.0-84914670229&doi=10.1016%2fj.cattod.2014.06.030&partnerID=40&md5=ec759df9f7b6ee5427487aa0e3fa6593

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Link	https://www.scopus.com/inward/record.uri?eid=2-s2.0-84914670229&doi=10.1016%2fj.cattod.2014.06.030&partnerID=40&md5=ec759df9f7b6ee5427487aa0e3fa6593
Affiliations	Laboratory of Hydrides Investigation, Boreskov Institute of Catalysis SB RAS, Pr. Akademika Lavrentieva 5, Novosibirsk, Russian Federation; Laboratory of Quantum Chemistry and Spectroscopy, Institute of Solid State Chemistry UrB RAS, Pervomaiskaya Street 91, Ekaterinburg, Russian Federation; International Center of Aerophysical Studies, Institute of Theoretical and Applied Mechanics SB RAS, Institutskaya str. 4/1, Novosibirsk, Russian Federation; Laboratory of Perspective Combustion Technologies, Engineering School, Far Eastern Federal University, Vladivostok, Suhanova str. 8, Vladivostok, Russian Federation
Author Keywords	Hydrogen generator; Hydrogen storage; Solid state NaBH4 pellet; Thermo-electrical energy converter
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Correspondence Address	Netskina, O.V.; Laboratory of Hydrides Investigation, Boreskov Institute of Catalysis SB RAS, Pr. Akademika Lavrentieva 5, Russian Federation
Publisher	Elsevier
CODEN	CATTE
Language of Original Document	English
Abbreviated Source Title	Catal Today
Source	Scopus