Low-temperature catalytic oxidative coupling of methane in an electric field over a Ce–W–O catalyst system
We examined oxidative coupling of methane (OCM) over various Ce–W–O catalysts at 423 K in an electric field. Ce 2 (WO 4 ) 3 /CeO 2 catalyst showed high OCM activity. In a periodic operation test over Ce 2 (WO 4 ) 3 /CeO 2 catalyst, C 2 selectivity exceeded 60% during three redox cycles. However, Ce...
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| Veröffentlicht in: | Scientific reports 2016-04, Vol.6 (1), p.25154-25154, Article 25154 |
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| creator | Sugiura, Kei Ogo, Shuhei Iwasaki, Kousei Yabe, Tomohiro Sekine, Yasushi |
| description | We examined oxidative coupling of methane (OCM) over various Ce–W–O catalysts at 423 K in an electric field. Ce
2
(WO
4
)
3
/CeO
2
catalyst showed high OCM activity. In a periodic operation test over Ce
2
(WO
4
)
3
/CeO
2
catalyst, C
2
selectivity exceeded 60% during three redox cycles. However, Ce
2
(WO
4
)
3
/CeO
2
catalyst without the electric field showed low activity, even at 1073 K: CH
4
Conv., 6.0%; C
2
Sel., 2.1%. A synergetic effect between the Ce
2
(WO
4
)
3
structure and electric field created the reactive oxygen species for selective oxidation of methane. Results of XAFS,
in-situ
Raman and periodic operation tests demonstrated that OCM occurred as the lattice oxygen in Ce
2
(WO
4
)
3
(short W–O bonds in distorted WO
4
unit) was consumed. The consumed oxygen was reproduced by a redox mechanism in the electric field. |
| doi_str_mv | 10.1038/srep25154 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_pubme</sourceid><recordid>TN_cdi_pubmedcentral_primary_oai_pubmedcentral_nih_gov_4846874</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>1898677446</sourcerecordid><originalsourceid>FETCH-LOGICAL-c504t-7d43fc460bcdadbc5ef4d5600f6816c03dbb4fdb04b5ec2da5aa76301c9860d23</originalsourceid><addsrcrecordid>eNplkd9qHCEUxqWkNCHNRV-gCL1pAtOqo87sTSEs_QcLuWnppTh6ZmOY0Yk62-Yu79A37JPEsttl0wh6xPPj8zt8CL2i5B0ldfs-RZiYoII_QyeMcFGxmrGjg_sxOkvphpQl2ILTxQt0zBpK24bJE-RX4WeVYZwg6jxHwEZnPdxlZ3D45azOblPewjwNzq9x6PEI-Vp7wM5j7TEMYHIscO9gsDhsIGKNl_Dn_vePsq92cinjVA4YX6LnvR4SnO3qKfr-6eO35ZdqdfX56_JyVRlBeK4ay-vecEk6Y7XtjICeWyEJ6WVLpSG17Tre247wToBhVgutG1kTahatJJbVp-jDVneauxGsAZ-jHtQU3ajjnQraqccd767VOmwUb7lsG14E3u4EYridIWU1umRgGMrsYU6KNq1glBO-KOib_9CbMEdfxlO0LX6ahnNZqPMtZWJIJbN-b4YS9TdItQ-ysK8P3e_Jf7EV4GILpNLya4gHXz5RewBcAqui</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1898677446</pqid></control><display><type>article</type><title>Low-temperature catalytic oxidative coupling of methane in an electric field over a Ce–W–O catalyst system</title><source>DOAJ Directory of Open Access Journals</source><source>Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals</source><source>Springer Nature OA Free Journals</source><source>Nature Free</source><source>PubMed Central</source><source>Alma/SFX Local Collection</source><source>Free Full-Text Journals in Chemistry</source><creator>Sugiura, Kei ; Ogo, Shuhei ; Iwasaki, Kousei ; Yabe, Tomohiro ; Sekine, Yasushi</creator><creatorcontrib>Sugiura, Kei ; Ogo, Shuhei ; Iwasaki, Kousei ; Yabe, Tomohiro ; Sekine, Yasushi</creatorcontrib><description>We examined oxidative coupling of methane (OCM) over various Ce–W–O catalysts at 423 K in an electric field. Ce
2
(WO
4
)
3
/CeO
2
catalyst showed high OCM activity. In a periodic operation test over Ce
2
(WO
4
)
3
/CeO
2
catalyst, C
2
selectivity exceeded 60% during three redox cycles. However, Ce
2
(WO
4
)
3
/CeO
2
catalyst without the electric field showed low activity, even at 1073 K: CH
4
Conv., 6.0%; C
2
Sel., 2.1%. A synergetic effect between the Ce
2
(WO
4
)
3
structure and electric field created the reactive oxygen species for selective oxidation of methane. Results of XAFS,
in-situ
Raman and periodic operation tests demonstrated that OCM occurred as the lattice oxygen in Ce
2
(WO
4
)
3
(short W–O bonds in distorted WO
4
unit) was consumed. The consumed oxygen was reproduced by a redox mechanism in the electric field.</description><identifier>ISSN: 2045-2322</identifier><identifier>EISSN: 2045-2322</identifier><identifier>DOI: 10.1038/srep25154</identifier><identifier>PMID: 27118726</identifier><language>eng</language><publisher>London: Nature Publishing Group UK</publisher><subject>639/638/77/885 ; 639/638/77/887 ; Catalysts ; Electric fields ; Humanities and Social Sciences ; Low temperature ; Methane ; multidisciplinary ; Oxidation ; Oxygen ; Reactive oxygen species ; Science ; Temperature effects</subject><ispartof>Scientific reports, 2016-04, Vol.6 (1), p.25154-25154, Article 25154</ispartof><rights>The Author(s) 2016</rights><rights>Copyright Nature Publishing Group Apr 2016</rights><rights>Copyright © 2016, Macmillan Publishers Limited 2016 Macmillan Publishers Limited</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c504t-7d43fc460bcdadbc5ef4d5600f6816c03dbb4fdb04b5ec2da5aa76301c9860d23</citedby><cites>FETCH-LOGICAL-c504t-7d43fc460bcdadbc5ef4d5600f6816c03dbb4fdb04b5ec2da5aa76301c9860d23</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4846874/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4846874/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,727,780,784,864,885,27922,27923,41118,42187,51574,53789,53791</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/27118726$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Sugiura, Kei</creatorcontrib><creatorcontrib>Ogo, Shuhei</creatorcontrib><creatorcontrib>Iwasaki, Kousei</creatorcontrib><creatorcontrib>Yabe, Tomohiro</creatorcontrib><creatorcontrib>Sekine, Yasushi</creatorcontrib><title>Low-temperature catalytic oxidative coupling of methane in an electric field over a Ce–W–O catalyst system</title><title>Scientific reports</title><addtitle>Sci Rep</addtitle><addtitle>Sci Rep</addtitle><description>We examined oxidative coupling of methane (OCM) over various Ce–W–O catalysts at 423 K in an electric field. Ce
2
(WO
4
)
3
/CeO
2
catalyst showed high OCM activity. In a periodic operation test over Ce
2
(WO
4
)
3
/CeO
2
catalyst, C
2
selectivity exceeded 60% during three redox cycles. However, Ce
2
(WO
4
)
3
/CeO
2
catalyst without the electric field showed low activity, even at 1073 K: CH
4
Conv., 6.0%; C
2
Sel., 2.1%. A synergetic effect between the Ce
2
(WO
4
)
3
structure and electric field created the reactive oxygen species for selective oxidation of methane. Results of XAFS,
in-situ
Raman and periodic operation tests demonstrated that OCM occurred as the lattice oxygen in Ce
2
(WO
4
)
3
(short W–O bonds in distorted WO
4
unit) was consumed. The consumed oxygen was reproduced by a redox mechanism in the electric field.</description><subject>639/638/77/885</subject><subject>639/638/77/887</subject><subject>Catalysts</subject><subject>Electric fields</subject><subject>Humanities and Social Sciences</subject><subject>Low temperature</subject><subject>Methane</subject><subject>multidisciplinary</subject><subject>Oxidation</subject><subject>Oxygen</subject><subject>Reactive oxygen species</subject><subject>Science</subject><subject>Temperature effects</subject><issn>2045-2322</issn><issn>2045-2322</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>C6C</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNplkd9qHCEUxqWkNCHNRV-gCL1pAtOqo87sTSEs_QcLuWnppTh6ZmOY0Yk62-Yu79A37JPEsttl0wh6xPPj8zt8CL2i5B0ldfs-RZiYoII_QyeMcFGxmrGjg_sxOkvphpQl2ILTxQt0zBpK24bJE-RX4WeVYZwg6jxHwEZnPdxlZ3D45azOblPewjwNzq9x6PEI-Vp7wM5j7TEMYHIscO9gsDhsIGKNl_Dn_vePsq92cinjVA4YX6LnvR4SnO3qKfr-6eO35ZdqdfX56_JyVRlBeK4ay-vecEk6Y7XtjICeWyEJ6WVLpSG17Tre247wToBhVgutG1kTahatJJbVp-jDVneauxGsAZ-jHtQU3ajjnQraqccd767VOmwUb7lsG14E3u4EYridIWU1umRgGMrsYU6KNq1glBO-KOib_9CbMEdfxlO0LX6ahnNZqPMtZWJIJbN-b4YS9TdItQ-ysK8P3e_Jf7EV4GILpNLya4gHXz5RewBcAqui</recordid><startdate>20160427</startdate><enddate>20160427</enddate><creator>Sugiura, Kei</creator><creator>Ogo, Shuhei</creator><creator>Iwasaki, Kousei</creator><creator>Yabe, Tomohiro</creator><creator>Sekine, Yasushi</creator><general>Nature Publishing Group UK</general><general>Nature Publishing Group</general><scope>C6C</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7X7</scope><scope>7XB</scope><scope>88A</scope><scope>88E</scope><scope>88I</scope><scope>8FE</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>LK8</scope><scope>M0S</scope><scope>M1P</scope><scope>M2P</scope><scope>M7P</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>Q9U</scope><scope>7X8</scope><scope>5PM</scope></search><sort><creationdate>20160427</creationdate><title>Low-temperature catalytic oxidative coupling of methane in an electric field over a Ce–W–O catalyst system</title><author>Sugiura, Kei ; Ogo, Shuhei ; Iwasaki, Kousei ; Yabe, Tomohiro ; Sekine, Yasushi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c504t-7d43fc460bcdadbc5ef4d5600f6816c03dbb4fdb04b5ec2da5aa76301c9860d23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>639/638/77/885</topic><topic>639/638/77/887</topic><topic>Catalysts</topic><topic>Electric fields</topic><topic>Humanities and Social Sciences</topic><topic>Low temperature</topic><topic>Methane</topic><topic>multidisciplinary</topic><topic>Oxidation</topic><topic>Oxygen</topic><topic>Reactive oxygen species</topic><topic>Science</topic><topic>Temperature effects</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Sugiura, Kei</creatorcontrib><creatorcontrib>Ogo, Shuhei</creatorcontrib><creatorcontrib>Iwasaki, Kousei</creatorcontrib><creatorcontrib>Yabe, Tomohiro</creatorcontrib><creatorcontrib>Sekine, Yasushi</creatorcontrib><collection>Springer Nature OA Free Journals</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Health & Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Biology Database (Alumni Edition)</collection><collection>Medical Database (Alumni Edition)</collection><collection>Science Database (Alumni Edition)</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>Biological Science Collection</collection><collection>ProQuest Central</collection><collection>Natural Science Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>ProQuest Biological Science Collection</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Science Database</collection><collection>Biological Science Database</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>ProQuest Central Basic</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Scientific reports</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Sugiura, Kei</au><au>Ogo, Shuhei</au><au>Iwasaki, Kousei</au><au>Yabe, Tomohiro</au><au>Sekine, Yasushi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Low-temperature catalytic oxidative coupling of methane in an electric field over a Ce–W–O catalyst system</atitle><jtitle>Scientific reports</jtitle><stitle>Sci Rep</stitle><addtitle>Sci Rep</addtitle><date>2016-04-27</date><risdate>2016</risdate><volume>6</volume><issue>1</issue><spage>25154</spage><epage>25154</epage><pages>25154-25154</pages><artnum>25154</artnum><issn>2045-2322</issn><eissn>2045-2322</eissn><abstract>We examined oxidative coupling of methane (OCM) over various Ce–W–O catalysts at 423 K in an electric field. Ce
2
(WO
4
)
3
/CeO
2
catalyst showed high OCM activity. In a periodic operation test over Ce
2
(WO
4
)
3
/CeO
2
catalyst, C
2
selectivity exceeded 60% during three redox cycles. However, Ce
2
(WO
4
)
3
/CeO
2
catalyst without the electric field showed low activity, even at 1073 K: CH
4
Conv., 6.0%; C
2
Sel., 2.1%. A synergetic effect between the Ce
2
(WO
4
)
3
structure and electric field created the reactive oxygen species for selective oxidation of methane. Results of XAFS,
in-situ
Raman and periodic operation tests demonstrated that OCM occurred as the lattice oxygen in Ce
2
(WO
4
)
3
(short W–O bonds in distorted WO
4
unit) was consumed. The consumed oxygen was reproduced by a redox mechanism in the electric field.</abstract><cop>London</cop><pub>Nature Publishing Group UK</pub><pmid>27118726</pmid><doi>10.1038/srep25154</doi><tpages>1</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Scientific reports, 2016-04, Vol.6 (1), p.25154-25154, Article 25154 |
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| language | eng |
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| source | DOAJ Directory of Open Access Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Springer Nature OA Free Journals; Nature Free; PubMed Central; Alma/SFX Local Collection; Free Full-Text Journals in Chemistry |
| subjects | 639/638/77/885 639/638/77/887 Catalysts Electric fields Humanities and Social Sciences Low temperature Methane multidisciplinary Oxidation Oxygen Reactive oxygen species Science Temperature effects |
| title | Low-temperature catalytic oxidative coupling of methane in an electric field over a Ce–W–O catalyst system |
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