Single Electrode Heat Effects: I. Peltier Entropies of Gas Electrodes in Carbonate Paste Electrolytes

Torben Jacobsen; G. H. J. Broers

doi:10.1149/1.2133267

Single Electrode Heat Effects: I. Peltier Entropies of Gas Electrodes in Carbonate Paste Electrolytes

Torben Jacobsen
, G. H. J. Broers

Department of Chemistry

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Abstract

Standard Peltier entropies for the reactions in molten carbonate paste electrolytes at 1000°K have been determined fromthermogalvanic measurements. The results are –217 and –118 J/mole°K,respectively. No dependence on electrolyte composition is observed. The reversiblepart of the Peltier entropy for the oxygen electrode reaction is estimatedfrom thermodynamic data and reasonable agreement with the experimentalresults is found. It is concluded that the main contribution to the Peltierentropy arises from the transition from gaseous to liquid state, whereas thetransfer entropies of the ionic species are of minor importance.

Original language	English
Journal	Journal of The Electrochemical Society
Volume	124
Issue number	2
Pages (from-to)	207-210
ISSN	0013-4651
DOIs	https://doi.org/10.1149/1.2133267
Publication status	Published - 1977

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Copyright The Electrochemical Society, Inc. [1977]. All rights reserved. Except as provided under U.S. copyright law, this work may not be reproduced, resold, distributed, or modified without the express permission of The Electrochemical Society (ECS).

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title = "Single Electrode Heat Effects: I. Peltier Entropies of Gas Electrodes in Carbonate Paste Electrolytes",

abstract = "Standard Peltier entropies for the reactions in molten carbonate paste electrolytes at 1000°K have been determined fromthermogalvanic measurements. The results are –217 and –118 J/mole°K,respectively. No dependence on electrolyte composition is observed. The reversiblepart of the Peltier entropy for the oxygen electrode reaction is estimatedfrom thermodynamic data and reasonable agreement with the experimentalresults is found. It is concluded that the main contribution to the Peltierentropy arises from the transition from gaseous to liquid state, whereas thetransfer entropies of the ionic species are of minor importance.",

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T2 - I. Peltier Entropies of Gas Electrodes in Carbonate Paste Electrolytes

AU - Jacobsen, Torben

AU - Broers, G. H. J.

N1 - Copyright The Electrochemical Society, Inc. [1977]. All rights reserved. Except as provided under U.S. copyright law, this work may not be reproduced, resold, distributed, or modified without the express permission of The Electrochemical Society (ECS).

PY - 1977

Y1 - 1977

N2 - Standard Peltier entropies for the reactions in molten carbonate paste electrolytes at 1000°K have been determined fromthermogalvanic measurements. The results are –217 and –118 J/mole°K,respectively. No dependence on electrolyte composition is observed. The reversiblepart of the Peltier entropy for the oxygen electrode reaction is estimatedfrom thermodynamic data and reasonable agreement with the experimentalresults is found. It is concluded that the main contribution to the Peltierentropy arises from the transition from gaseous to liquid state, whereas thetransfer entropies of the ionic species are of minor importance.

AB - Standard Peltier entropies for the reactions in molten carbonate paste electrolytes at 1000°K have been determined fromthermogalvanic measurements. The results are –217 and –118 J/mole°K,respectively. No dependence on electrolyte composition is observed. The reversiblepart of the Peltier entropy for the oxygen electrode reaction is estimatedfrom thermodynamic data and reasonable agreement with the experimentalresults is found. It is concluded that the main contribution to the Peltierentropy arises from the transition from gaseous to liquid state, whereas thetransfer entropies of the ionic species are of minor importance.

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DO - 10.1149/1.2133267

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JO - Journal of The Electrochemical Society

JF - Journal of The Electrochemical Society

IS - 2

ER -

Single Electrode Heat Effects: I. Peltier Entropies of Gas Electrodes in Carbonate Paste Electrolytes

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