Park, K. Kim, K. Y. Lu, L. Lim, T.-H. Hong, S.-A. Lee, H.-I. 2024-01-21T01:01:50Z 2024-01-21T01:01:50Z 2021-09-02 2007-06 1615-6846 https://pubs.kist.re.kr/handle/201004/134360 (NiMgAl)O-2 materials prepared from layered double hydroxide (LDH) precursors show a typical mesoporous structure with an average pore size of about 6 mn, excellent activity for the methane steam reforming (MSR) reaction at 650 degrees 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 AI/Mg for MSR. The activity gradually increases with an increase in the AI/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. NiMgAI (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. English WILEY-V C H VERLAG GMBH NICKEL-CATALYST ANIONIC CLAYS MIXED OXIDES MCFC CH4 Structural characteristics of (NiMgAl)O-x prepared from a layered double hydroxide precursor and its application in direct internal reforming molten carbonate fuel cells Article 10.1002/fuce.200600003 1 FUEL CELLS, v.7, no.3, pp.211 - 217 FUEL CELLS 7 3 211 217 scie scopus 000247394400006 2-s2.0-34547410875 Electrochemistry Energy & Fuels Electrochemistry Energy & Fuels Article NICKEL-CATALYST ANIONIC CLAYS MIXED OXIDES MCFC CH4 Al/Mg molar ratio DIR-MCFC layered double hydroxide (LDH) methane steam reforming Ni catalyst