Catalytic hydrogen production via dry reforming of methane over Ni/Ce 0.65Hf0.25M0.1O2-δ (M = Tb, Sm, Nd, Pr and La)

D. Harshini, Dae Hyung Lee, Yongmin Kim, SukWoo Nam, Jonghee Han, Hyung Chul Ham, Chang Won Yoon

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Ni/Ce0.65Hf0.25M0.1O2-δ (Ni/CH-M, M = Tb, Sm, Nd, Pr, and La), Ni-based catalysts supported on CeO 2-HfO2 materials incorporated with rare earth elements, were prepared by a solvothermal method. The resulting catalysts were found to have surface areas ranging from 41 to 47 m2/g, and they proved to possess strong metal-to-support interactions, as evidenced by temperature programmed reduction analyses. Upon utilization of these catalysts for dry reforming of methane (DRM) with a CH4/CO2 ratio of 1 at a range of 600 to 900 C, the Ni/CH-M catalysts were found to have higher activities than the Ni/CH catalyst. In addition, the activities proved to increase in the order of Ni/CH-Pr > Ni/CH-La ~ Ni/CH-Tb > Ni/CH-Nd ~ Ni/CH-Sm > Ni/CH. With a high CH4/CO2 ratio of 2, these Ni/CH-M materials showed better stabilities than the Ni/CH catalyst in the DRM reaction at 800 C for 150 h. Moreover, the Ni/CH-M (M = Pr, Tb, and La) catalysts exhibited superior durability over other Ni materials. Consistent with the observations, transmission electron microscopy further confirmed that no carbon species were observed in the Ni/CH-M (M = Pr, Tb, and La) catalysts following the reforming reactions. Graphical Abstract: [Figure not available: see fulltext.]

Original languageEnglish
Pages (from-to)656-662
Number of pages7
JournalCatalysis Letters
Volume144
Issue number4
DOIs
Publication statusPublished - 2014 Apr 1

Fingerprint

Methane
Reforming reactions
Hydrogen production
Catalysts
Rare earth elements
Catalyst supports
Catalyst activity
Durability
Carbon
Metals
Transmission electron microscopy

Keywords

  • Carbon dioxide
  • Ceria-hafnia
  • Heterogeneous catalyst
  • Methane dry reforming
  • Oxygen storage capacity
  • Rare-earth elements

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

Cite this

Catalytic hydrogen production via dry reforming of methane over Ni/Ce 0.65Hf0.25M0.1O2-δ (M = Tb, Sm, Nd, Pr and La). / Harshini, D.; Lee, Dae Hyung; Kim, Yongmin; Nam, SukWoo; Han, Jonghee; Ham, Hyung Chul; Yoon, Chang Won.

In: Catalysis Letters, Vol. 144, No. 4, 01.04.2014, p. 656-662.

Research output: Contribution to journalArticle

Harshini, D. ; Lee, Dae Hyung ; Kim, Yongmin ; Nam, SukWoo ; Han, Jonghee ; Ham, Hyung Chul ; Yoon, Chang Won. / Catalytic hydrogen production via dry reforming of methane over Ni/Ce 0.65Hf0.25M0.1O2-δ (M = Tb, Sm, Nd, Pr and La). In: Catalysis Letters. 2014 ; Vol. 144, No. 4. pp. 656-662.
@article{31cc3e32b3184a889db5d60755813847,
title = "Catalytic hydrogen production via dry reforming of methane over Ni/Ce 0.65Hf0.25M0.1O2-δ (M = Tb, Sm, Nd, Pr and La)",
abstract = "Ni/Ce0.65Hf0.25M0.1O2-δ (Ni/CH-M, M = Tb, Sm, Nd, Pr, and La), Ni-based catalysts supported on CeO 2-HfO2 materials incorporated with rare earth elements, were prepared by a solvothermal method. The resulting catalysts were found to have surface areas ranging from 41 to 47 m2/g, and they proved to possess strong metal-to-support interactions, as evidenced by temperature programmed reduction analyses. Upon utilization of these catalysts for dry reforming of methane (DRM) with a CH4/CO2 ratio of 1 at a range of 600 to 900 C, the Ni/CH-M catalysts were found to have higher activities than the Ni/CH catalyst. In addition, the activities proved to increase in the order of Ni/CH-Pr > Ni/CH-La ~ Ni/CH-Tb > Ni/CH-Nd ~ Ni/CH-Sm > Ni/CH. With a high CH4/CO2 ratio of 2, these Ni/CH-M materials showed better stabilities than the Ni/CH catalyst in the DRM reaction at 800 C for 150 h. Moreover, the Ni/CH-M (M = Pr, Tb, and La) catalysts exhibited superior durability over other Ni materials. Consistent with the observations, transmission electron microscopy further confirmed that no carbon species were observed in the Ni/CH-M (M = Pr, Tb, and La) catalysts following the reforming reactions. Graphical Abstract: [Figure not available: see fulltext.]",
keywords = "Carbon dioxide, Ceria-hafnia, Heterogeneous catalyst, Methane dry reforming, Oxygen storage capacity, Rare-earth elements",
author = "D. Harshini and Lee, {Dae Hyung} and Yongmin Kim and SukWoo Nam and Jonghee Han and Ham, {Hyung Chul} and Yoon, {Chang Won}",
year = "2014",
month = "4",
day = "1",
doi = "10.1007/s10562-014-1192-x",
language = "English",
volume = "144",
pages = "656--662",
journal = "Catalysis Letters",
issn = "1011-372X",
publisher = "Springer Netherlands",
number = "4",

}

TY - JOUR

T1 - Catalytic hydrogen production via dry reforming of methane over Ni/Ce 0.65Hf0.25M0.1O2-δ (M = Tb, Sm, Nd, Pr and La)

AU - Harshini, D.

AU - Lee, Dae Hyung

AU - Kim, Yongmin

AU - Nam, SukWoo

AU - Han, Jonghee

AU - Ham, Hyung Chul

AU - Yoon, Chang Won

PY - 2014/4/1

Y1 - 2014/4/1

N2 - Ni/Ce0.65Hf0.25M0.1O2-δ (Ni/CH-M, M = Tb, Sm, Nd, Pr, and La), Ni-based catalysts supported on CeO 2-HfO2 materials incorporated with rare earth elements, were prepared by a solvothermal method. The resulting catalysts were found to have surface areas ranging from 41 to 47 m2/g, and they proved to possess strong metal-to-support interactions, as evidenced by temperature programmed reduction analyses. Upon utilization of these catalysts for dry reforming of methane (DRM) with a CH4/CO2 ratio of 1 at a range of 600 to 900 C, the Ni/CH-M catalysts were found to have higher activities than the Ni/CH catalyst. In addition, the activities proved to increase in the order of Ni/CH-Pr > Ni/CH-La ~ Ni/CH-Tb > Ni/CH-Nd ~ Ni/CH-Sm > Ni/CH. With a high CH4/CO2 ratio of 2, these Ni/CH-M materials showed better stabilities than the Ni/CH catalyst in the DRM reaction at 800 C for 150 h. Moreover, the Ni/CH-M (M = Pr, Tb, and La) catalysts exhibited superior durability over other Ni materials. Consistent with the observations, transmission electron microscopy further confirmed that no carbon species were observed in the Ni/CH-M (M = Pr, Tb, and La) catalysts following the reforming reactions. Graphical Abstract: [Figure not available: see fulltext.]

AB - Ni/Ce0.65Hf0.25M0.1O2-δ (Ni/CH-M, M = Tb, Sm, Nd, Pr, and La), Ni-based catalysts supported on CeO 2-HfO2 materials incorporated with rare earth elements, were prepared by a solvothermal method. The resulting catalysts were found to have surface areas ranging from 41 to 47 m2/g, and they proved to possess strong metal-to-support interactions, as evidenced by temperature programmed reduction analyses. Upon utilization of these catalysts for dry reforming of methane (DRM) with a CH4/CO2 ratio of 1 at a range of 600 to 900 C, the Ni/CH-M catalysts were found to have higher activities than the Ni/CH catalyst. In addition, the activities proved to increase in the order of Ni/CH-Pr > Ni/CH-La ~ Ni/CH-Tb > Ni/CH-Nd ~ Ni/CH-Sm > Ni/CH. With a high CH4/CO2 ratio of 2, these Ni/CH-M materials showed better stabilities than the Ni/CH catalyst in the DRM reaction at 800 C for 150 h. Moreover, the Ni/CH-M (M = Pr, Tb, and La) catalysts exhibited superior durability over other Ni materials. Consistent with the observations, transmission electron microscopy further confirmed that no carbon species were observed in the Ni/CH-M (M = Pr, Tb, and La) catalysts following the reforming reactions. Graphical Abstract: [Figure not available: see fulltext.]

KW - Carbon dioxide

KW - Ceria-hafnia

KW - Heterogeneous catalyst

KW - Methane dry reforming

KW - Oxygen storage capacity

KW - Rare-earth elements

UR - http://www.scopus.com/inward/record.url?scp=84900646411&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84900646411&partnerID=8YFLogxK

U2 - 10.1007/s10562-014-1192-x

DO - 10.1007/s10562-014-1192-x

M3 - Article

VL - 144

SP - 656

EP - 662

JO - Catalysis Letters

JF - Catalysis Letters

SN - 1011-372X

IS - 4

ER -