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Huge Seebeck Coefficients in Nonaqueous Electrolytes

M Bonetti, S Nakamae, M Roger, P Guenoun

J Chem Phys. 2011 Mar 21;134(11):114513.

PMID: 21428638

Abstract:

The Seebeck coefficients of the nonaqueous electrolytes tetrabutylammonium nitrate, tetraoctylphosphonium bromide, and tetradodecylammonium nitrate in 1-octanol, 1-dodecanol, and ethylene-glycol are measured in a temperature range from T = 30 °C to T = 45 °C. The Seebeck coefficient is generally of the order of a few hundreds of microvolts per Kelvin for aqueous solution of inorganic ions. Here we report huge values of 7 mV/K at 0.1 M concentration for tetrabutylammonium nitrate in 1-dodecanol. These striking results open the question of unexpectedly large kosmotrope or "structure making" effects of tetraalkylammonium ions on the structure of alcohols.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
AP63893356 Tetradodecylammonium nitrate Tetradodecylammonium nitrate 63893-35-6 Price
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