Improvement in Low Temperature CO Oxidation Activity of CuOx/CeO2−δ by Cs2O Doping: Mechanistic Aspects
The various wt% of Cs promoted CuO x /CeO 2−δ catalysts were prepared by impregnation method and examined for CO oxidation. The 0.1 wt% Cs doped CuO x /CeO 2−δ showed a maximum CO oxidation (22%) compared to the CuO x /CeO 2−δ (9%) at light off temperature (40 ºC). The plausible CO oxidation mechani...
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| Veröffentlicht in: | Catalysis Surveys from Asia 2020-12, Vol.24 (4), p.269-277 |
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| creator | Waikar, Jyoti Lavande, Nitin More, Rahul More, Pavan |
| description | The various wt% of Cs promoted CuO
x
/CeO
2−δ
catalysts were prepared by impregnation method and examined for CO oxidation. The 0.1 wt% Cs doped CuO
x
/CeO
2−δ
showed a maximum CO oxidation (22%) compared to the CuO
x
/CeO
2−δ
(9%) at light off temperature (40 ºC). The plausible CO oxidation mechanism has explained using characterization techniques like ATR-FTIR, XPS, XRD, SEM, H
2
-TPR, and HRTEM. The formation of Cs
2
O was responsible for the stabilization of Cu
1+
species. The Cs doping increases the electron density on the catalyst surface due to the charge diffusion. The Cs addition in CuCe leads to the formation of smaller Cu
1+
species, CuO nanorod, Ce
3+
and adsorbed oxygen. The role of these species for CO oxidation at a lower temperature is explained in detail with plausible mechanism. The synergistic interaction of Cs with CuCe leads to the increase in CO conversion rate with decrease in the activation energy. |
| doi_str_mv | 10.1007/s10563-020-09310-8 |
| format | Article |
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x
/CeO
2−δ
catalysts were prepared by impregnation method and examined for CO oxidation. The 0.1 wt% Cs doped CuO
x
/CeO
2−δ
showed a maximum CO oxidation (22%) compared to the CuO
x
/CeO
2−δ
(9%) at light off temperature (40 ºC). The plausible CO oxidation mechanism has explained using characterization techniques like ATR-FTIR, XPS, XRD, SEM, H
2
-TPR, and HRTEM. The formation of Cs
2
O was responsible for the stabilization of Cu
1+
species. The Cs doping increases the electron density on the catalyst surface due to the charge diffusion. The Cs addition in CuCe leads to the formation of smaller Cu
1+
species, CuO nanorod, Ce
3+
and adsorbed oxygen. The role of these species for CO oxidation at a lower temperature is explained in detail with plausible mechanism. The synergistic interaction of Cs with CuCe leads to the increase in CO conversion rate with decrease in the activation energy.</description><identifier>ISSN: 1571-1013</identifier><identifier>EISSN: 1571-1013</identifier><identifier>EISSN: 1574-9266</identifier><identifier>DOI: 10.1007/s10563-020-09310-8</identifier><language>eng</language><publisher>New York: Springer US</publisher><subject>Carbon monoxide ; Catalysis ; Catalysts ; Cerium oxides ; Cesium oxides ; Characterization and Evaluation of Materials ; Chemistry ; Chemistry and Materials Science ; Doping ; Electron density ; Industrial Chemistry/Chemical Engineering ; Low temperature ; Nanorods ; Original Article ; Oxidation ; Physical Chemistry ; X ray photoelectron spectroscopy</subject><ispartof>Catalysis Surveys from Asia, 2020-12, Vol.24 (4), p.269-277</ispartof><rights>Springer Science+Business Media, LLC, part of Springer Nature 2020</rights><rights>Springer Science+Business Media, LLC, part of Springer Nature 2020.</rights><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c2348-92c7cca0915b0a35a61866404f1a8fa508166969c5dcc6a37a9b8d2af03b10b63</citedby><cites>FETCH-LOGICAL-c2348-92c7cca0915b0a35a61866404f1a8fa508166969c5dcc6a37a9b8d2af03b10b63</cites><orcidid>0000-0002-6949-6791</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s10563-020-09310-8$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s10563-020-09310-8$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,41464,42533,51294</link.rule.ids></links><search><creatorcontrib>Waikar, Jyoti</creatorcontrib><creatorcontrib>Lavande, Nitin</creatorcontrib><creatorcontrib>More, Rahul</creatorcontrib><creatorcontrib>More, Pavan</creatorcontrib><title>Improvement in Low Temperature CO Oxidation Activity of CuOx/CeO2−δ by Cs2O Doping: Mechanistic Aspects</title><title>Catalysis Surveys from Asia</title><addtitle>Catal Surv Asia</addtitle><description>The various wt% of Cs promoted CuO
x
/CeO
2−δ
catalysts were prepared by impregnation method and examined for CO oxidation. The 0.1 wt% Cs doped CuO
x
/CeO
2−δ
showed a maximum CO oxidation (22%) compared to the CuO
x
/CeO
2−δ
(9%) at light off temperature (40 ºC). The plausible CO oxidation mechanism has explained using characterization techniques like ATR-FTIR, XPS, XRD, SEM, H
2
-TPR, and HRTEM. The formation of Cs
2
O was responsible for the stabilization of Cu
1+
species. The Cs doping increases the electron density on the catalyst surface due to the charge diffusion. The Cs addition in CuCe leads to the formation of smaller Cu
1+
species, CuO nanorod, Ce
3+
and adsorbed oxygen. The role of these species for CO oxidation at a lower temperature is explained in detail with plausible mechanism. The synergistic interaction of Cs with CuCe leads to the increase in CO conversion rate with decrease in the activation energy.</description><subject>Carbon monoxide</subject><subject>Catalysis</subject><subject>Catalysts</subject><subject>Cerium oxides</subject><subject>Cesium oxides</subject><subject>Characterization and Evaluation of Materials</subject><subject>Chemistry</subject><subject>Chemistry and Materials Science</subject><subject>Doping</subject><subject>Electron density</subject><subject>Industrial Chemistry/Chemical Engineering</subject><subject>Low temperature</subject><subject>Nanorods</subject><subject>Original Article</subject><subject>Oxidation</subject><subject>Physical Chemistry</subject><subject>X ray photoelectron spectroscopy</subject><issn>1571-1013</issn><issn>1571-1013</issn><issn>1574-9266</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp9kE1OwzAQhS0EEqVwAVaWWIeO7dhJ2FXhr1JRNmVtOa5TXJEf7KS0N2DNWTgHh-AkBIIEK6SRZhbvvdH7EDolcE4AooknwAULgEIACSMQxHtoRHhEAgKE7f-5D9GR92sAyqOEjNB6Vjau3pjSVC22FZ7Xz3hhysY41XbO4DTD2dYuVWvrCk91aze23eG6wGmXbSepyejHy-v7G853OPU0w5d1Y6vVBb4z-kFV1rdW46lvjG79MToo1KM3Jz97jO6vrxbpbTDPbmbpdB5oysI4SKiOtFaQEJ6DYlwJEgsRQlgQFReKQ0yESESi-VJroVikkjxeUlUAywnkgo3R2ZDbF3vqjG_luu5c1b-UNOQQ0n54r6KDSrvae2cK2ThbKreTBOQXUzkwlT1T-c1Uxr2JDSbfi6uVcb_R_7g-AYULeb8</recordid><startdate>20201201</startdate><enddate>20201201</enddate><creator>Waikar, Jyoti</creator><creator>Lavande, Nitin</creator><creator>More, Rahul</creator><creator>More, Pavan</creator><general>Springer US</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><orcidid>https://orcid.org/0000-0002-6949-6791</orcidid></search><sort><creationdate>20201201</creationdate><title>Improvement in Low Temperature CO Oxidation Activity of CuOx/CeO2−δ by Cs2O Doping: Mechanistic Aspects</title><author>Waikar, Jyoti ; Lavande, Nitin ; More, Rahul ; More, Pavan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c2348-92c7cca0915b0a35a61866404f1a8fa508166969c5dcc6a37a9b8d2af03b10b63</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Carbon monoxide</topic><topic>Catalysis</topic><topic>Catalysts</topic><topic>Cerium oxides</topic><topic>Cesium oxides</topic><topic>Characterization and Evaluation of Materials</topic><topic>Chemistry</topic><topic>Chemistry and Materials Science</topic><topic>Doping</topic><topic>Electron density</topic><topic>Industrial Chemistry/Chemical Engineering</topic><topic>Low temperature</topic><topic>Nanorods</topic><topic>Original Article</topic><topic>Oxidation</topic><topic>Physical Chemistry</topic><topic>X ray photoelectron spectroscopy</topic><toplevel>online_resources</toplevel><creatorcontrib>Waikar, Jyoti</creatorcontrib><creatorcontrib>Lavande, Nitin</creatorcontrib><creatorcontrib>More, Rahul</creatorcontrib><creatorcontrib>More, Pavan</creatorcontrib><collection>CrossRef</collection><jtitle>Catalysis Surveys from Asia</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Waikar, Jyoti</au><au>Lavande, Nitin</au><au>More, Rahul</au><au>More, Pavan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Improvement in Low Temperature CO Oxidation Activity of CuOx/CeO2−δ by Cs2O Doping: Mechanistic Aspects</atitle><jtitle>Catalysis Surveys from Asia</jtitle><stitle>Catal Surv Asia</stitle><date>2020-12-01</date><risdate>2020</risdate><volume>24</volume><issue>4</issue><spage>269</spage><epage>277</epage><pages>269-277</pages><issn>1571-1013</issn><eissn>1571-1013</eissn><eissn>1574-9266</eissn><abstract>The various wt% of Cs promoted CuO
x
/CeO
2−δ
catalysts were prepared by impregnation method and examined for CO oxidation. The 0.1 wt% Cs doped CuO
x
/CeO
2−δ
showed a maximum CO oxidation (22%) compared to the CuO
x
/CeO
2−δ
(9%) at light off temperature (40 ºC). The plausible CO oxidation mechanism has explained using characterization techniques like ATR-FTIR, XPS, XRD, SEM, H
2
-TPR, and HRTEM. The formation of Cs
2
O was responsible for the stabilization of Cu
1+
species. The Cs doping increases the electron density on the catalyst surface due to the charge diffusion. The Cs addition in CuCe leads to the formation of smaller Cu
1+
species, CuO nanorod, Ce
3+
and adsorbed oxygen. The role of these species for CO oxidation at a lower temperature is explained in detail with plausible mechanism. The synergistic interaction of Cs with CuCe leads to the increase in CO conversion rate with decrease in the activation energy.</abstract><cop>New York</cop><pub>Springer US</pub><doi>10.1007/s10563-020-09310-8</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0002-6949-6791</orcidid></addata></record> |
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| subjects | Carbon monoxide Catalysis Catalysts Cerium oxides Cesium oxides Characterization and Evaluation of Materials Chemistry Chemistry and Materials Science Doping Electron density Industrial Chemistry/Chemical Engineering Low temperature Nanorods Original Article Oxidation Physical Chemistry X ray photoelectron spectroscopy |
| title | Improvement in Low Temperature CO Oxidation Activity of CuOx/CeO2−δ by Cs2O Doping: Mechanistic Aspects |
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