DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Kwi Yong | ko |
dc.contributor.author | Han, Jong-In | ko |
dc.date.accessioned | 2015-04-29T01:28:33Z | - |
dc.date.available | 2015-04-29T01:28:33Z | - |
dc.date.created | 2015-04-27 | - |
dc.date.created | 2015-04-27 | - |
dc.date.created | 2015-04-27 | - |
dc.date.created | 2015-04-27 | - |
dc.date.issued | 2015-04 | - |
dc.identifier.citation | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, v.40, no.13, pp.4567 - 4572 | - |
dc.identifier.issn | 0360-3199 | - |
dc.identifier.uri | http://hdl.handle.net/10203/198316 | - |
dc.description.abstract | In this study, carbon supported Pd and Pd-Co alloys were synthesized and investigated as anode catalysts for the practical application of a promising sulfide-fed fuel cell, named direct alkaline sulfide fuel cell (DASFC). Physical and electrochemical properties of the Pd/C and Pd-Co/C catalysts were evaluated using X-ray diffraction (XRD), transmission electron microscope (TEM), energy dispersive X-ray (EDX), inductively coupled plasma optical emission spectroscopy (ICP-OES), cyclic voltammetry (CV), linear sweep voltammetry (LSV), I-V analysis and electrochemical impedance spectroscopy (EIS). Among all the Pd-based catalysts tested, Pd8Co2/C showed the highest sulfide oxidation activity in terms of the lowest onset potential and the highest current density, mass activity, and specific activity at -0.2 V (vs. Ag/AgCl). The maximum power density of DASFC with Pd8Co2/C anode catalyst was 46.82 mW cm(-2) at 70 degrees C, which is 26% higher than that with Pd/C. It is speculated that the incorporation of Co into Pd facilitated the adsorption of OHads at a lower potential, and Pd8Co2/C provided the optimal coverage of OHads that played a catalytic role and thus led to the highest performance. | - |
dc.language | English | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.subject | OXYGEN REDUCTION REACTION | - |
dc.subject | HYDROGEN-SULFIDE | - |
dc.subject | AEROBIC OXIDATION | - |
dc.subject | ANODE CATALYSTS | - |
dc.subject | PERFORMANCE | - |
dc.subject | ELECTROLYTE | - |
dc.subject | SULFUR | - |
dc.subject | ELECTROCATALYSTS | - |
dc.subject | DECOMPOSITION | - |
dc.subject | NANOPARTICLES | - |
dc.title | Carbon supported bimetallic Pd-Co catalysts for alkaline sulfide oxidation in direct alkaline sulfide fuel cell | - |
dc.type | Article | - |
dc.identifier.wosid | 000351785300016 | - |
dc.identifier.scopusid | 2-s2.0-84937757902 | - |
dc.type.rims | ART | - |
dc.citation.volume | 40 | - |
dc.citation.issue | 13 | - |
dc.citation.beginningpage | 4567 | - |
dc.citation.endingpage | 4572 | - |
dc.citation.publicationname | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | - |
dc.identifier.doi | 10.1016/j.ijhydene.2015.02.009 | - |
dc.contributor.localauthor | Han, Jong-In | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Hydrogen sulfide | - |
dc.subject.keywordAuthor | Direct alkaline sulfide fuel cell | - |
dc.subject.keywordAuthor | Pd-Co catalysts | - |
dc.subject.keywordAuthor | OHads adsorption | - |
dc.subject.keywordPlus | OXYGEN REDUCTION REACTION | - |
dc.subject.keywordPlus | HYDROGEN-SULFIDE | - |
dc.subject.keywordPlus | AEROBIC OXIDATION | - |
dc.subject.keywordPlus | ANODE CATALYSTS | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | ELECTROLYTE | - |
dc.subject.keywordPlus | SULFUR | - |
dc.subject.keywordPlus | ELECTROCATALYSTS | - |
dc.subject.keywordPlus | DECOMPOSITION | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
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