TY - JOUR
T1 - Ag supported on electrospun macro-structure CeO2 fibrous mats for diesel soot oxidation
AU - Lee, Chanmin
AU - Park, Joo Il
AU - Shul, Yong Gun
AU - Einaga, Hisahiro
AU - Teraoka, Yasutake
N1 - Funding Information:
This work was supported by JSPS KAKENHI Research Project Number 26630413.
Publisher Copyright:
© 2015 Published by Elsevier B.V.
PY - 2015/9/1
Y1 - 2015/9/1
N2 - Ceria oxide (CeO2) nanofibers with diameters of 241-253nm were produced via the electrospinning method. They were then applied as new support materials for silver nanoparticles and their effectiveness as diesel soot oxidation catalysts was examined. The crystal structure of the Ag was confirmed by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), high-resolution transmission electron microscopy (HR-TEM), and energy dispersive spectroscopy (EDS). The diesel soot oxidation experiment was performed using a mixture of carbon black and the fabricated catalyst. In the tight contact and loose contact modes, the highest temperatures of both the CeO2-fiber-supported Ag catalysts (Ag/CeO2) calcined at 500°C and the CeO2 fibers calcined at 500°C were shifted to a lower temperature range, compared with JRC-CEO-3 (a commercial catalyst). In addition, the activation energy also showed similar behavior. Thus, the fibrous CeO2 and Ag/CeO2 have been shown to be effective and promising catalysts for soot oxidation.
AB - Ceria oxide (CeO2) nanofibers with diameters of 241-253nm were produced via the electrospinning method. They were then applied as new support materials for silver nanoparticles and their effectiveness as diesel soot oxidation catalysts was examined. The crystal structure of the Ag was confirmed by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), high-resolution transmission electron microscopy (HR-TEM), and energy dispersive spectroscopy (EDS). The diesel soot oxidation experiment was performed using a mixture of carbon black and the fabricated catalyst. In the tight contact and loose contact modes, the highest temperatures of both the CeO2-fiber-supported Ag catalysts (Ag/CeO2) calcined at 500°C and the CeO2 fibers calcined at 500°C were shifted to a lower temperature range, compared with JRC-CEO-3 (a commercial catalyst). In addition, the activation energy also showed similar behavior. Thus, the fibrous CeO2 and Ag/CeO2 have been shown to be effective and promising catalysts for soot oxidation.
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U2 - 10.1016/j.apcatb.2015.03.008
DO - 10.1016/j.apcatb.2015.03.008
M3 - Article
AN - SCOPUS:84924756031
SN - 0926-3373
VL - 174-175
SP - 185
EP - 192
JO - Applied Catalysis B: Environmental
JF - Applied Catalysis B: Environmental
ER -