Partial oxidation of methane over CeO2 catalyst

Hyun Seog Roh; Ki Won Jun; Seung Chan Baek; Sang Eon Park

doi:10.5012/bkcs.2002.23.6.799

Partial oxidation of methane over CeO₂ catalyst

Hyun Seog Roh, Ki Won Jun, Seung Chan Baek, Sang Eon Park

Division of Environmental Engineering

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

8 Citations (Scopus)

Abstract

Partial oxidation of methane has been conducted over CeO₂ and it has been found that CeO₂ has an extraordinary catalytic activity in the reaction. Its activity was strongly dependent on the CH₄/O₂ ratio. Total combustion was dominant with stoichiometric feed ratio (CH₄/O₂ = 2.0) but partial oxidation was favorable with oxygen deficient feed condition. Meanwhile, oscillatory partial oxidation was achieved between the CH₄/ O₂ ratio of 3.8 and 4.3 and the period depended upon the feed composition. The proposed reaction mechanism is that oxygen vacancies in reduced ceria are supplied with oxygen molecules from the reactant, and then activate adsorbed oxygen, followed by releasing activated oxygen species reacting with methane to produce H₂ and CO.

Original language	English
Pages (from-to)	799-802
Number of pages	4
Journal	Bulletin of the Korean Chemical Society
Volume	23
Issue number	6
DOIs	https://doi.org/10.5012/bkcs.2002.23.6.799
Publication status	Published - 2002 Jun 20

All Science Journal Classification (ASJC) codes

Chemistry(all)

Access to Document

10.5012/bkcs.2002.23.6.799

Cite this

@article{7e1a372740f549ae8ccd1799db848980,

title = "Partial oxidation of methane over CeO2 catalyst",

abstract = "Partial oxidation of methane has been conducted over CeO2 and it has been found that CeO2 has an extraordinary catalytic activity in the reaction. Its activity was strongly dependent on the CH4/O2 ratio. Total combustion was dominant with stoichiometric feed ratio (CH4/O2 = 2.0) but partial oxidation was favorable with oxygen deficient feed condition. Meanwhile, oscillatory partial oxidation was achieved between the CH4/ O2 ratio of 3.8 and 4.3 and the period depended upon the feed composition. The proposed reaction mechanism is that oxygen vacancies in reduced ceria are supplied with oxygen molecules from the reactant, and then activate adsorbed oxygen, followed by releasing activated oxygen species reacting with methane to produce H2 and CO.",

author = "Roh, {Hyun Seog} and Jun, {Ki Won} and Baek, {Seung Chan} and Park, {Sang Eon}",

year = "2002",

month = jun,

day = "20",

doi = "10.5012/bkcs.2002.23.6.799",

language = "English",

volume = "23",

pages = "799--802",

journal = "Bulletin of the Korean Chemical Society",

issn = "0253-2964",

publisher = "Korean Chemical Society",

number = "6",

}

TY - JOUR

T1 - Partial oxidation of methane over CeO2 catalyst

AU - Roh, Hyun Seog

AU - Jun, Ki Won

AU - Baek, Seung Chan

AU - Park, Sang Eon

PY - 2002/6/20

Y1 - 2002/6/20

N2 - Partial oxidation of methane has been conducted over CeO2 and it has been found that CeO2 has an extraordinary catalytic activity in the reaction. Its activity was strongly dependent on the CH4/O2 ratio. Total combustion was dominant with stoichiometric feed ratio (CH4/O2 = 2.0) but partial oxidation was favorable with oxygen deficient feed condition. Meanwhile, oscillatory partial oxidation was achieved between the CH4/ O2 ratio of 3.8 and 4.3 and the period depended upon the feed composition. The proposed reaction mechanism is that oxygen vacancies in reduced ceria are supplied with oxygen molecules from the reactant, and then activate adsorbed oxygen, followed by releasing activated oxygen species reacting with methane to produce H2 and CO.

AB - Partial oxidation of methane has been conducted over CeO2 and it has been found that CeO2 has an extraordinary catalytic activity in the reaction. Its activity was strongly dependent on the CH4/O2 ratio. Total combustion was dominant with stoichiometric feed ratio (CH4/O2 = 2.0) but partial oxidation was favorable with oxygen deficient feed condition. Meanwhile, oscillatory partial oxidation was achieved between the CH4/ O2 ratio of 3.8 and 4.3 and the period depended upon the feed composition. The proposed reaction mechanism is that oxygen vacancies in reduced ceria are supplied with oxygen molecules from the reactant, and then activate adsorbed oxygen, followed by releasing activated oxygen species reacting with methane to produce H2 and CO.

UR - http://www.scopus.com/inward/record.url?scp=0037142655&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0037142655&partnerID=8YFLogxK

U2 - 10.5012/bkcs.2002.23.6.799

DO - 10.5012/bkcs.2002.23.6.799

M3 - Article

AN - SCOPUS:0037142655

SN - 0253-2964

VL - 23

SP - 799

EP - 802

JO - Bulletin of the Korean Chemical Society

JF - Bulletin of the Korean Chemical Society

IS - 6

ER -

Partial oxidation of methane over CeO₂ catalyst

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this