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Carbon anode in direct carbon fuel cell
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2010 (English)In: International journal of hydrogen energy, ISSN 0360-3199, E-ISSN 1879-3487, Vol. 35, no 7, p. 2732-2736Article in journal (Refereed) Published
Abstract [en]

Direct carbon fuel cell (DCFC) is a kind of high temperature fuel cell using carbon materials directly as anode. Electrochemical reactivity and surface property of carbon were taken into account in this paper. Four representative carbon samples were selected. The most suitable ratio of the ternary eutectic mixture Li2CO3-K2CO3-Al2O3 was determined at 1.05:1.2:1(mass ration). Conceptual analysis for electrochemical reactivity of carbon anode shows the importance of (1) reactive characteristics including lattice disorder, edge-carbon ratio and the number of short alkyl side chain of carbon material, which builds the prime foundation of the anodic half-cell reaction; (2) surface wetting ability, which assures the efficient contact of anode surface with electrolyte. It indicates that anode reaction rate and DCFC output can be notably improved if carbon are pre-dispersed into electrolyte before acting as anode, due to the straightway shift from cathode to anode for CO32- provided by electrolyte soaked in carbon material.

Place, publisher, year, edition, pages
2010. Vol. 35, no 7, p. 2732-2736
Keyword [en]
Direct carbon fuel cell (DCFC), Anode, Carbon species
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:kth:diva-29902DOI: 10.1016/j.ijhydene.2009.04.051ISI: 000276692800032Scopus ID: 2-s2.0-77951252854OAI: oai:DiVA.org:kth-29902DiVA, id: diva2:398662
Note
QC 20110218 3rd International Hydrogen Forum, Tsinghua Univ, Changsha, PEOPLES R CHINA, AUG 03-06, 2008Available from: 2011-02-18 Created: 2011-02-17 Last updated: 2017-12-11Bibliographically approved

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