ISSN 1608-4039 (Print)
ISSN 1680-9505 (Online)

For citation:

Churikov A. V., Ivanishchev A. V., Gamayunova I. M., Ushakov A. V., Churikov M. A. Calculation of density, viscosity, and conductivity for Na(K)BH4 – Na(K)BO2 – Na(K)OH – H2O solutions used in hydrogen power engineering. Electrochemical Energetics, 2010, vol. 10, iss. 3, pp. 109-115. DOI: 10.18500/1608-4039-2010-10-3-109-115

This is an open access article distributed under the terms of Creative Commons Attribution 4.0 International License (CC-BY 4.0).
Language: 
Russian
Heading: 
Hydrogen energy
Article type: 
Article
UDC: 
541.136
DOI: 
10.18500/1608-4039-2010-10-3-109-115

Calculation of density, viscosity, and conductivity for Na(K)BH4 – Na(K)BO2 – Na(K)OH – H2O solutions used in hydrogen power engineering

Autors: 
Churikov Aleksei Vladimirovich, Saratov State University
Ivanishchev Aleksandr Viktorovich, Saratov State University
Gamayunova Irina Mikhailovna, Saratov State University
Ushakov Arseni Vladimirovich, Saratov State University
Churikov Mikhail Alekseevich, Saratov State University
Abstract: 

Concentrated water-alkaline mixtures of sodium and potassium borohydrides and borates are used as fuel and a hydrogen source in hydrogen power engineering, including low-temperature fuel cells. The performance of such mixtures is determined by their physicochemical properties. An algorithm to calculate the density, viscosity, and specific electric conductivity of mixed solutions of the five-component water + salt system (Na,K)BH4 + (Na,K)BO2 + (Na,K)OH + H2O based on the quasiadditivity of these properties is proposed. The concentration-temperature dependences of the density, viscosity, and specific conductivity of aqueous KOH, NaOH, KBO2, NaBO2, NaBH4, and KBH4 solutions of any composition in a temperature range of (0 to 60)°C and the whole concentration range are described mathematically. The technique and algorithm of calculation have been verified by comparison with measured properties.

Key words: 
solution
density
viscosity
specific conductivity
mathematical modeling
hydrogen fuel cell
Reference: 
  1. Багоцкий Б. С., Осетрова Н. В., Скундин А. М. // Электрохимия. 2003. Т. 39. С. 919.
  2. Wee J.-H. // J. Power Sources. 2006. Vol. 161. P. 1.
  3. Li Z. P., Liu, B. H., Arai K., Suda S. // J. Alloy and Compounds. 2005. Vol. 404–406. P. 648.
  4. Leon C. P.de, Walsh F. C., Pletcher, D., Browning D. J., Lakeman J. B. // J. Power Sources. 2006. Vol. 155. P. 172.
  5. Максимова И. Н., Юшкевич В. Ф. // Журн. физ. химии. 1963. Т. 37. С. 903.
  6. Максимова И. Н., Сергеев С. В. // Журн. прикл. химии. 1974. Т. 47. С. 1666.
  7. Машовец В. П., Пучков Л. В., Сидорова С. Н., Федоров М. К. // Журн. прикл. химии. 1974. Т. 47. С. 546.
  8. Никольский Б. П., Григоров О. Н., Позин М. Е. Справочник химика: В 6 т. Т. III. Л.: Химия. Ленингр. отд-ние, 1971. 1008 с.
  9. Сухотин А. М. Справочник по электрохимии. Л.: Химия. Ленингр. отд-ние, 1981. 488 с.
  10. Максимова И. Н. // Журн. физ. химии. 1964. Т. 38. С. 277.
  11. Юшкевич В. Ю., Максимова И. Н., Буллан В. Г. // Электрохимия. 1967. Т. 3. С. 1491.
Received: 
27.01.2010
Accepted: 
27.01.2010
Published: 
27.09.2010