Lattice oxygen of La1-xSrxMO3 (M = Mn, Ni) and LaMnO3-αFβ perovskite oxides for the partial oxidation of methane to synthesis gas

H. J. Wei; Y. Cao; W. J. Ji; C. T. Au

doi:10.1016/j.catcom.2008.06.019

Lattice oxygen of La_1-xSr_xMO₃ (M = Mn, Ni) and LaMnO_3-αF_β perovskite oxides for the partial oxidation of methane to synthesis gas

H. J. Wei, Y. Cao, W. J. Ji^*, C. T. Au

^*Corresponding author for this work

Department of Chemistry

Research output: Contribution to journal › Journal article › peer-review

61 Citations (Scopus)

8 Downloads (Pure)

Abstract

The partial oxidation of methane to synthesis gas by using the lattice oxygen of La_1-xSr_xMO₃ (M = Mn, Ni; x = 0-0.4) and LaMnO_3-αF_β (β/(3 - α) = 0.1) perovskite oxides was explored. Approximately 75% CO selectivity at 16% CH₄ conversion with H₂/CO molar ratio of ca. 2.5 can be achieved at 800 °C. The stability of the perovskite structure and the reactivity/selectivity of lattice oxygen are found to be dependent on (i) B-site element, (ii) degree of substitution of La with Sr, and (iii) fluorination of the perovskite oxide.

Original language	English
Pages (from-to)	2509-2514
Number of pages	6
Journal	Catalysis Communications
Volume	9
Issue number	15
DOIs	https://doi.org/10.1016/j.catcom.2008.06.019
Publication status	Published - 20 Sept 2008

Scopus Subject Areas

Catalysis
Chemistry(all)
Process Chemistry and Technology

User-Defined Keywords

Lattice oxygen
Methane
Partial oxidation
Perovskite oxide
Synthesis gas

Access to Document

10.1016/j.catcom.2008.06.019

Full TextAccepted author manuscript, 9.62 MB

Cite this

@article{a1b40dc5647a45d7bc0ad901a1c5ff42,

title = "Lattice oxygen of La1-xSrxMO3 (M = Mn, Ni) and LaMnO3-αFβ perovskite oxides for the partial oxidation of methane to synthesis gas",

abstract = "The partial oxidation of methane to synthesis gas by using the lattice oxygen of La1-xSrxMO3 (M = Mn, Ni; x = 0-0.4) and LaMnO3-αFβ (β/(3 - α) = 0.1) perovskite oxides was explored. Approximately 75% CO selectivity at 16% CH4 conversion with H2/CO molar ratio of ca. 2.5 can be achieved at 800 °C. The stability of the perovskite structure and the reactivity/selectivity of lattice oxygen are found to be dependent on (i) B-site element, (ii) degree of substitution of La with Sr, and (iii) fluorination of the perovskite oxide.",

keywords = "Lattice oxygen, Methane, Partial oxidation, Perovskite oxide, Synthesis gas",

author = "Wei, {H. J.} and Y. Cao and Ji, {W. J.} and Au, {C. T.}",

note = "Funding Information: This work was supported by the Hong Kong Baptist University (FRG/04-05/II-17). The research activities conducted in NJU was financed by the Ministry of Science and Technology of China (Grant 2000048009).",

year = "2008",

month = sep,

day = "20",

doi = "10.1016/j.catcom.2008.06.019",

language = "English",

volume = "9",

pages = "2509--2514",

journal = "Catalysis Communications",

issn = "1566-7367",

publisher = "Elsevier",

number = "15",

}

TY - JOUR

T1 - Lattice oxygen of La1-xSrxMO3 (M = Mn, Ni) and LaMnO3-αFβ perovskite oxides for the partial oxidation of methane to synthesis gas

AU - Wei, H. J.

AU - Cao, Y.

AU - Ji, W. J.

AU - Au, C. T.

N1 - Funding Information: This work was supported by the Hong Kong Baptist University (FRG/04-05/II-17). The research activities conducted in NJU was financed by the Ministry of Science and Technology of China (Grant 2000048009).

PY - 2008/9/20

Y1 - 2008/9/20

N2 - The partial oxidation of methane to synthesis gas by using the lattice oxygen of La1-xSrxMO3 (M = Mn, Ni; x = 0-0.4) and LaMnO3-αFβ (β/(3 - α) = 0.1) perovskite oxides was explored. Approximately 75% CO selectivity at 16% CH4 conversion with H2/CO molar ratio of ca. 2.5 can be achieved at 800 °C. The stability of the perovskite structure and the reactivity/selectivity of lattice oxygen are found to be dependent on (i) B-site element, (ii) degree of substitution of La with Sr, and (iii) fluorination of the perovskite oxide.

AB - The partial oxidation of methane to synthesis gas by using the lattice oxygen of La1-xSrxMO3 (M = Mn, Ni; x = 0-0.4) and LaMnO3-αFβ (β/(3 - α) = 0.1) perovskite oxides was explored. Approximately 75% CO selectivity at 16% CH4 conversion with H2/CO molar ratio of ca. 2.5 can be achieved at 800 °C. The stability of the perovskite structure and the reactivity/selectivity of lattice oxygen are found to be dependent on (i) B-site element, (ii) degree of substitution of La with Sr, and (iii) fluorination of the perovskite oxide.

KW - Lattice oxygen

KW - Methane

KW - Partial oxidation

KW - Perovskite oxide

KW - Synthesis gas

UR - http://www.scopus.com/inward/record.url?scp=50849131643&partnerID=8YFLogxK

U2 - 10.1016/j.catcom.2008.06.019

DO - 10.1016/j.catcom.2008.06.019

M3 - Journal article

AN - SCOPUS:50849131643

SN - 1566-7367

VL - 9

SP - 2509

EP - 2514

JO - Catalysis Communications

JF - Catalysis Communications

IS - 15

ER -