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Structural Characteristics of (NiMgAl)Ox Prepared from a Layered Double Hydroxide Precursor and its Application in Direct Internal ReformingMolten Carbonate Fuel Cells
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Park, Kyoungil | - |
dc.contributor.author | Lu, Lianhai | - |
dc.contributor.author | Lim, Tae-Hoon | - |
dc.contributor.author | Hong, Seong-Ahn | - |
dc.contributor.author | Lee, Ho-In | - |
dc.date.accessioned | 2010-03-17T01:51:45Z | - |
dc.date.available | 2010-03-17T01:51:45Z | - |
dc.date.issued | 2007 | - |
dc.identifier.citation | Fuel Cells 2007, 7, 211-217 | en |
dc.identifier.issn | 1615-6846 | - |
dc.identifier.uri | https://hdl.handle.net/10371/61299 | - |
dc.description.abstract | (NiMgAl)Ox materials prepared from layered double hydroxide
(LDH) precursors show a typical mesoporous structure with an average pore size of about 6 nm, excellent activity for the methane steam reforming (MSR) reaction at 650 °C, and a strong resistance against Li poisoning, suggesting the possibility for future application in direct internal reforming molten carbonate fuel cells (DIR-MCFC). X-ray diffraction (XRD) experiments indicate that the molar ratio of Al/Mg exerts a strong effect on the properties of both the LDH precursors and final catalysts. Temperature-programmed reduction (TPR) analysis reveals that the Al/Mg molar ratio influences the properties of Ni in the final catalyst. The catalytic performance of the catalysts prepared is greatly influenced by the molar ratio of Al/Mg for MSR. The activity gradually increases with an increase in the Al/Mg ratio (0.14–1.5). However, with further increases in the amount of Al added (Al/Mg = 2), the activity decreases. The activity is strongly related to the BET surface area and Ni dispersion. The Li-poisoning test proves that Mg-rich catalysts lose their activity quickly upon exposure to Li, while Al-rich catalysts maintain virtually all of their original activity. NiMgAl (Al/Mg = 1.5) is found to be an excellent catalyst for the DIR-MCFC, having both the highest activity and strongest resistance against Li poisoning. | en |
dc.description.sponsorship | the Korea Electric
Power Research Institute, through the Korea Institute of Science and Technology, and by the MOST/KOSEF (grant no. R11-2002-102-00000-0) ERC Program | en |
dc.language.iso | en | en |
dc.publisher | Wiley-Blackwell | en |
dc.subject | Al/Mg Molar Ratio | en |
dc.subject | DIR-MCFC | en |
dc.subject | Layered Double Hydroxide (LDH) | en |
dc.subject | Methane Steam Reforming | en |
dc.subject | Ni Catalyst | en |
dc.title | Structural Characteristics of (NiMgAl)Ox Prepared from a Layered Double Hydroxide Precursor and its Application in Direct Internal ReformingMolten Carbonate Fuel Cells | en |
dc.type | Article | en |
dc.contributor.AlternativeAuthor | 박경필 | - |
dc.contributor.AlternativeAuthor | 임태훈 | - |
dc.contributor.AlternativeAuthor | 홍성안 | - |
dc.contributor.AlternativeAuthor | 이호인 | - |
dc.identifier.doi | 10.1002/fuce.200600003 | - |
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