Oxidation resistance of Ni/La0.7Sr0.3AlO 3-δ catalyst for steam reforming of model aromatic hydrocarbon

Yukihiro Sugiura; Daiki Mukai; Yuki Murai; Satoshi Tochiya; Yasushi Sekine

doi:10.1016/j.ijhydene.2013.04.095

Oxidation resistance of Ni/La_0.7Sr_0.3AlO _3-δ catalyst for steam reforming of model aromatic hydrocarbon

Yukihiro Sugiura, Daiki Mukai, Yuki Murai, Satoshi Tochiya, Yasushi Sekine^*

^*Corresponding author for this work

School of Advanced Science and Engineering

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

17 Citations (Scopus)

Abstract

Oxidative resistance of Ni catalysts supported on various oxides La _0.7Sr_0.3AlO_3-δ, LaAlO₃, and α-Al₂O₃ were investigated for hydrogen production by steam reforming of model aromatic hydrocarbons. Ni/α-Al₂O ₃ lost its steam reforming activity by oxidation treatment. In contrast, Ni/La_0.7Sr_0.3AlO_3-δ and Ni/LaAlO₃ catalysts showed steam reforming activity even after the oxidation treatment. The XANES (X-ray absorption near-edge structure) spectra at Ni K-edge for Ni/La_0.7Sr_0.3AlO_3-δ and Ni/α-Al₂O₃ after oxidation treatment revealed that the supported Ni on La_0.7Sr_0.3AlO_3-δ and α-Al₂O₃ were oxidized completely. Although the mean particle size of Ni on Ni/α-Al₂O₃ increased by oxidation treatment or reduction treatment, Ni particles on Ni/La _0.7Sr_0.3AlO_3-δ retained the fine structure after oxidation treatment or reduction treatment. Moreover, TPR (temperature programmed reduction) and XPS (X-ray photoelectron spectroscopy) measurements for elucidating the reducibility of Ni/La_0.7Sr _0.3AlO_3-δ showed that the supported Ni on La _0.7Sr_0.3AlO_3-δ was easily reduced even after the oxidation treatment.

Original language	English
Pages (from-to)	7822-7829
Number of pages	8
Journal	International Journal of Hydrogen Energy
Volume	38
Issue number	19
DOIs	https://doi.org/10.1016/j.ijhydene.2013.04.095
Publication status	Published - 2013 Jun 27

Keywords

Ni catalyst
Oxidative resistance
Perovskite-type oxide support
Steam reforming of toluene

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Fuel Technology
Condensed Matter Physics
Energy Engineering and Power Technology

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.ijhydene.2013.04.095

Cite this

@article{81fae10920034379a68f8fb2244994b9,

title = "Oxidation resistance of Ni/La0.7Sr0.3AlO 3-δ catalyst for steam reforming of model aromatic hydrocarbon",

abstract = "Oxidative resistance of Ni catalysts supported on various oxides La 0.7Sr0.3AlO3-δ, LaAlO3, and α-Al2O3 were investigated for hydrogen production by steam reforming of model aromatic hydrocarbons. Ni/α-Al2O 3 lost its steam reforming activity by oxidation treatment. In contrast, Ni/La0.7Sr0.3AlO3-δ and Ni/LaAlO3 catalysts showed steam reforming activity even after the oxidation treatment. The XANES (X-ray absorption near-edge structure) spectra at Ni K-edge for Ni/La0.7Sr0.3AlO3-δ and Ni/α-Al2O3 after oxidation treatment revealed that the supported Ni on La0.7Sr0.3AlO3-δ and α-Al2O3 were oxidized completely. Although the mean particle size of Ni on Ni/α-Al2O3 increased by oxidation treatment or reduction treatment, Ni particles on Ni/La 0.7Sr0.3AlO3-δ retained the fine structure after oxidation treatment or reduction treatment. Moreover, TPR (temperature programmed reduction) and XPS (X-ray photoelectron spectroscopy) measurements for elucidating the reducibility of Ni/La0.7Sr 0.3AlO3-δ showed that the supported Ni on La 0.7Sr0.3AlO3-δ was easily reduced even after the oxidation treatment.",

keywords = "Ni catalyst, Oxidative resistance, Perovskite-type oxide support, Steam reforming of toluene",

author = "Yukihiro Sugiura and Daiki Mukai and Yuki Murai and Satoshi Tochiya and Yasushi Sekine",

year = "2013",

month = jun,

day = "27",

doi = "10.1016/j.ijhydene.2013.04.095",

language = "English",

volume = "38",

pages = "7822--7829",

journal = "International Journal of Hydrogen Energy",

issn = "0360-3199",

publisher = "Elsevier Limited",

number = "19",

}

TY - JOUR

T1 - Oxidation resistance of Ni/La0.7Sr0.3AlO 3-δ catalyst for steam reforming of model aromatic hydrocarbon

AU - Sugiura, Yukihiro

AU - Mukai, Daiki

AU - Murai, Yuki

AU - Tochiya, Satoshi

AU - Sekine, Yasushi

PY - 2013/6/27

Y1 - 2013/6/27

N2 - Oxidative resistance of Ni catalysts supported on various oxides La 0.7Sr0.3AlO3-δ, LaAlO3, and α-Al2O3 were investigated for hydrogen production by steam reforming of model aromatic hydrocarbons. Ni/α-Al2O 3 lost its steam reforming activity by oxidation treatment. In contrast, Ni/La0.7Sr0.3AlO3-δ and Ni/LaAlO3 catalysts showed steam reforming activity even after the oxidation treatment. The XANES (X-ray absorption near-edge structure) spectra at Ni K-edge for Ni/La0.7Sr0.3AlO3-δ and Ni/α-Al2O3 after oxidation treatment revealed that the supported Ni on La0.7Sr0.3AlO3-δ and α-Al2O3 were oxidized completely. Although the mean particle size of Ni on Ni/α-Al2O3 increased by oxidation treatment or reduction treatment, Ni particles on Ni/La 0.7Sr0.3AlO3-δ retained the fine structure after oxidation treatment or reduction treatment. Moreover, TPR (temperature programmed reduction) and XPS (X-ray photoelectron spectroscopy) measurements for elucidating the reducibility of Ni/La0.7Sr 0.3AlO3-δ showed that the supported Ni on La 0.7Sr0.3AlO3-δ was easily reduced even after the oxidation treatment.

AB - Oxidative resistance of Ni catalysts supported on various oxides La 0.7Sr0.3AlO3-δ, LaAlO3, and α-Al2O3 were investigated for hydrogen production by steam reforming of model aromatic hydrocarbons. Ni/α-Al2O 3 lost its steam reforming activity by oxidation treatment. In contrast, Ni/La0.7Sr0.3AlO3-δ and Ni/LaAlO3 catalysts showed steam reforming activity even after the oxidation treatment. The XANES (X-ray absorption near-edge structure) spectra at Ni K-edge for Ni/La0.7Sr0.3AlO3-δ and Ni/α-Al2O3 after oxidation treatment revealed that the supported Ni on La0.7Sr0.3AlO3-δ and α-Al2O3 were oxidized completely. Although the mean particle size of Ni on Ni/α-Al2O3 increased by oxidation treatment or reduction treatment, Ni particles on Ni/La 0.7Sr0.3AlO3-δ retained the fine structure after oxidation treatment or reduction treatment. Moreover, TPR (temperature programmed reduction) and XPS (X-ray photoelectron spectroscopy) measurements for elucidating the reducibility of Ni/La0.7Sr 0.3AlO3-δ showed that the supported Ni on La 0.7Sr0.3AlO3-δ was easily reduced even after the oxidation treatment.

KW - Ni catalyst

KW - Oxidative resistance

KW - Perovskite-type oxide support

KW - Steam reforming of toluene

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