Ag supported on electrospun macro-structure CeO2 fibrous mats for diesel soot oxidation

Chanmin Lee; Joo Il Park; Yong Gun Shul; Hisahiro Einaga; Yasutake Teraoka

doi:10.1016/j.apcatb.2015.03.008

Ag supported on electrospun macro-structure CeO₂ fibrous mats for diesel soot oxidation

Chanmin Lee, Joo Il Park, Yong Gun Shul, Hisahiro Einaga, Yasutake Teraoka

Department of Chemical and Biomolecular Engineering

Research output: Contribution to journal › Article › peer-review

105 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	185-192
Number of pages	8
Journal	Applied Catalysis B: Environmental
Volume	174-175
DOIs	https://doi.org/10.1016/j.apcatb.2015.03.008
Publication status	Published - 2015 Sept 1

Bibliographical note

Publisher Copyright:
© 2015 Published by Elsevier B.V.

All Science Journal Classification (ASJC) codes

Catalysis
Environmental Science(all)
Process Chemistry and Technology

Access to Document

10.1016/j.apcatb.2015.03.008

Cite this

@article{ff41a176a87145c0a33fb1269970ee59,

title = "Ag supported on electrospun macro-structure CeO2 fibrous mats for diesel soot oxidation",

abstract = "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.",

author = "Chanmin Lee and Park, {Joo Il} and Shul, {Yong Gun} and Hisahiro Einaga and Yasutake Teraoka",

note = "Publisher Copyright: {\textcopyright} 2015 Published by Elsevier B.V.",

year = "2015",

month = sep,

day = "1",

doi = "10.1016/j.apcatb.2015.03.008",

language = "English",

volume = "174-175",

pages = "185--192",

journal = "Applied Catalysis B: Environmental",

issn = "0926-3373",

publisher = "Elsevier",

}

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

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.

UR - http://www.scopus.com/inward/record.url?scp=84924756031&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84924756031&partnerID=8YFLogxK

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 -