Physicochemical Transport Properties of Aqueous Sodium Metaborate Solutions for Sodium Borohydride Hydrogen Generation and Storage and Fuel Cell Applications |
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| Journal | Advanced Materials Research (Volumes 15 - 17) |
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| Volume | THERMEC 2006 Supplement |
| Edited by | T. Chandra, K. Tsuzaki, M. Militzer and C. Ravindran |
| Pages | 267-274 |
| DOI | 10.4028/www.scientific.net/AMR.15-17.267 |
| Citation | Caroline R. Cloutier et al., 2006, Advanced Materials Research, 15-17, 267 |
| Online since | February, 2006 |
| Authors | Caroline R. Cloutier, Akram Alfantazi, Elod Gyenge |
| Keywords | Conductivity, Hydrogen Storage, Sodium Metaborate, Viscosity |
| Abstract | The conductivity and viscosity of aqueous solutions of NaBO2 were measured as a function of concentration at 25oC. Conductivity data was analyzed with various Kohlrausch correlations and the limiting molar conductivity of the BO2 - ion at infinite dilution was estimated to be of 30.59 S.cm2/mol. From this value, the mobility, diffusion coefficients and transference number for the BO2 - ion were calculated as 3.17x10-4 cm2/s.V, 8.14x10-6 cm2/s, and 0.379 respectively. Ion-solvent and ion-ion interactions were studied with Jones-Dole type correlations, which were employed to analyze the viscosity data. A value of -0.4660 1/M was estimated for the BO2 - B- coefficient. |
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