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Zeitschrift für Physikalische Chemie

International journal of research in physical chemistry and chemical physics

Editor-in-Chief: Rademann, Klaus


IMPACT FACTOR 2018: 0.975
5-year IMPACT FACTOR: 1.021

CiteScore 2018: 1.20

SCImago Journal Rank (SJR) 2018: 0.327
Source Normalized Impact per Paper (SNIP) 2018: 0.391

Online
ISSN
2196-7156
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Volume 227, Issue 5

Issues

Actual State of Technology in Direct Carbon Fuel Cells

Pauline Desclaux / Matthias Rzepka / Ulrich Stimming
  • Nanyang Technological University, TUM CREATE Centre for Electromobility, Singapore, Republik Singapur
  • Other articles by this author:
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/ Rolf Hempelmann
Published Online: 2012-10-01 | DOI: https://doi.org/10.1524/zpch.2012.0253

Abstract

At medium term, electricity could be partially provided by the utilization of carbon in high temperature fuel cells. The thermodynamic efficiency of a direct carbon fuel cell (DCFC) slightly exceeds 100% in a wide temperature range due to the positive value of the reaction entropy change. Thus, the thermodynamic efficiency is higher than those of conventional fuel cell types for gaseous fuels.

In DCFC technology, three different main electrolyte concepts are used up to now: two types of liquid salt electrolytes (molten carbonate or molten hydroxide) and a solid oxide electrolyte (solid ceramic layer). For instance, it has been reported that power densities up to 210 mW cm-2 can been achieved at 750 ºC in a molten carbonate based cell, resulting to a real practical efficiency of about 60%. Recently, also combined technologies have been developed in which a maximum power density of 500 mW cm-2 is possible. In this paper, the actual state of technology will be discussed for the different concepts of direct carbon fuel cells.

Keywords: DCFC; Carbon Conversion; Electrochemical Oxidation; Review

About the article

* Correspondence address: ZAE Bayern, Division 1, Walther-Meissner-Str. 6, 85748 Garching, Deutschland,


Published Online: 2012-10-01

Published in Print: 2013-05-01


Citation Information: Zeitschrift für Physikalische Chemie, Volume 227, Issue 5, Pages 627–649, ISSN (Online) 2196-7156, ISSN (Print) 0942-9352, DOI: https://doi.org/10.1524/zpch.2012.0253.

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