Effects of MnO2 Crystal Phases in MnO2/CeO2 Catalyst for NO Reduction by NH3-SCR
The low-temperature (α-/β-/γ-/δ-MnO 2 /CeO 2 -Nanorod) catalysts have been synthesized using the hydrothermal method followed by wet-impregnation and anaylzed in the Inconel reactor for selective catalytic reduction of NO using NH 3 as a reducing agent. The catalysts were characterized by the Brunau...
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| creator | Rao, Shyam Sunder Sharma, Sweta |
| description | The low-temperature (α-/β-/γ-/δ-MnO
2
/CeO
2
-Nanorod) catalysts have been synthesized using the hydrothermal method followed by wet-impregnation and anaylzed in the Inconel reactor for selective catalytic reduction of NO using NH
3
as a reducing agent. The catalysts were characterized by the Brunauer-Emmett characterized catalysts–Teller, X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy-Energy dispersive X-ray spectroscopy, transmission electron microscopy and Raman spectroscopy. The characterization analysis of the catalysts revealed that the α-MnO
2
/CeO
2
-Nanorod has the highest specific surface area, surface Ce
3+
and Mn
4+
, and oxygen storage capacity among all the catalysts. The activity results exhibited that in the 50–450 °C temperature range, the α-MnO
2
/CeO
2
-Nanorod has the maximum NO conversion and N
2
selectivity. It showed the highest NO conversion (75%) and N
2
selectivity (86%) at 250 °C. As the amount of α-MnO
2
increased in the α-MnO
2
/CeO
2
-Nanorod catalyst, the NO conversion with N
2
selectivity exceeded 94.25% and 95%, respectively.
Graphical Abstract |
| doi_str_mv | 10.1007/s10562-023-04438-4 |
| format | Article |
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2
/CeO
2
-Nanorod) catalysts have been synthesized using the hydrothermal method followed by wet-impregnation and anaylzed in the Inconel reactor for selective catalytic reduction of NO using NH
3
as a reducing agent. The catalysts were characterized by the Brunauer-Emmett characterized catalysts–Teller, X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy-Energy dispersive X-ray spectroscopy, transmission electron microscopy and Raman spectroscopy. The characterization analysis of the catalysts revealed that the α-MnO
2
/CeO
2
-Nanorod has the highest specific surface area, surface Ce
3+
and Mn
4+
, and oxygen storage capacity among all the catalysts. The activity results exhibited that in the 50–450 °C temperature range, the α-MnO
2
/CeO
2
-Nanorod has the maximum NO conversion and N
2
selectivity. It showed the highest NO conversion (75%) and N
2
selectivity (86%) at 250 °C. As the amount of α-MnO
2
increased in the α-MnO
2
/CeO
2
-Nanorod catalyst, the NO conversion with N
2
selectivity exceeded 94.25% and 95%, respectively.
Graphical Abstract</description><identifier>ISSN: 1011-372X</identifier><identifier>EISSN: 1572-879X</identifier><identifier>DOI: 10.1007/s10562-023-04438-4</identifier><language>eng</language><publisher>New York: Springer US</publisher><subject>Ammonia ; Catalysis ; Catalysts ; Cerium oxides ; Chemical reduction ; Chemical synthesis ; Chemistry ; Chemistry and Materials Science ; Electron microscopy ; Hydrothermal crystal growth ; Industrial Chemistry/Chemical Engineering ; Low temperature ; Manganese dioxide ; Microscopy ; Morphology ; Nanorods ; Nitrates ; Organometallic Chemistry ; Oxidation ; Photoelectrons ; Physical Chemistry ; Raman spectroscopy ; Reducing agents ; Selective catalytic reduction ; Selectivity ; Spectrum analysis ; Storage capacity ; Temperature ; X ray photoelectron spectroscopy</subject><ispartof>Catalysis letters, 2024-04, Vol.154 (4), p.1768-1781</ispartof><rights>The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c319t-19abcf4e86ec3d4bfd74a3284d0102b9b3b59ee322f5cc1bd3d0c2a82073b5493</citedby><cites>FETCH-LOGICAL-c319t-19abcf4e86ec3d4bfd74a3284d0102b9b3b59ee322f5cc1bd3d0c2a82073b5493</cites><orcidid>0000-0002-9439-3516</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/s10562-023-04438-4$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s10562-023-04438-4$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids></links><search><creatorcontrib>Rao, Shyam Sunder</creatorcontrib><creatorcontrib>Sharma, Sweta</creatorcontrib><title>Effects of MnO2 Crystal Phases in MnO2/CeO2 Catalyst for NO Reduction by NH3-SCR</title><title>Catalysis letters</title><addtitle>Catal Lett</addtitle><description>The low-temperature (α-/β-/γ-/δ-MnO
2
/CeO
2
-Nanorod) catalysts have been synthesized using the hydrothermal method followed by wet-impregnation and anaylzed in the Inconel reactor for selective catalytic reduction of NO using NH
3
as a reducing agent. The catalysts were characterized by the Brunauer-Emmett characterized catalysts–Teller, X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy-Energy dispersive X-ray spectroscopy, transmission electron microscopy and Raman spectroscopy. The characterization analysis of the catalysts revealed that the α-MnO
2
/CeO
2
-Nanorod has the highest specific surface area, surface Ce
3+
and Mn
4+
, and oxygen storage capacity among all the catalysts. The activity results exhibited that in the 50–450 °C temperature range, the α-MnO
2
/CeO
2
-Nanorod has the maximum NO conversion and N
2
selectivity. It showed the highest NO conversion (75%) and N
2
selectivity (86%) at 250 °C. As the amount of α-MnO
2
increased in the α-MnO
2
/CeO
2
-Nanorod catalyst, the NO conversion with N
2
selectivity exceeded 94.25% and 95%, respectively.
Graphical Abstract</description><subject>Ammonia</subject><subject>Catalysis</subject><subject>Catalysts</subject><subject>Cerium oxides</subject><subject>Chemical reduction</subject><subject>Chemical synthesis</subject><subject>Chemistry</subject><subject>Chemistry and Materials Science</subject><subject>Electron microscopy</subject><subject>Hydrothermal crystal growth</subject><subject>Industrial Chemistry/Chemical Engineering</subject><subject>Low temperature</subject><subject>Manganese dioxide</subject><subject>Microscopy</subject><subject>Morphology</subject><subject>Nanorods</subject><subject>Nitrates</subject><subject>Organometallic Chemistry</subject><subject>Oxidation</subject><subject>Photoelectrons</subject><subject>Physical Chemistry</subject><subject>Raman spectroscopy</subject><subject>Reducing agents</subject><subject>Selective catalytic reduction</subject><subject>Selectivity</subject><subject>Spectrum analysis</subject><subject>Storage capacity</subject><subject>Temperature</subject><subject>X ray photoelectron spectroscopy</subject><issn>1011-372X</issn><issn>1572-879X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><recordid>eNp9kE1LAzEQhoMoWKt_wFPAc-zkY5vNUZZqhdqWqtBbyGYTbam7Ndke9t-bdgVvnmaY92PgQeiWwj0FkKNIIRszAowTEILnRJyhAc0kI7lU6_O0A6WES7a-RFcxbgFASaoGaDnx3tk24sbjl3rBcBG62JodXn6a6CLe1KfzqHBHzSQlydg3Ac8XeOWqg203TY3LDs-nnLwWq2t04c0uupvfOUTvj5O3Ykpmi6fn4mFGLKeqJVSZ0nrh8rGzvBKlr6QwnOWiAgqsVCUvM-UcZ8xn1tKy4hVYZnIGMilC8SG663v3ofk-uNjqbXMIdXqpmRrzBCXLZXKx3mVDE2NwXu_D5suETlPQR3K6J6cTOX0ip0UK8T4Uk7n-cOGv-p_UDxMKbkM</recordid><startdate>20240401</startdate><enddate>20240401</enddate><creator>Rao, Shyam Sunder</creator><creator>Sharma, Sweta</creator><general>Springer US</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><orcidid>https://orcid.org/0000-0002-9439-3516</orcidid></search><sort><creationdate>20240401</creationdate><title>Effects of MnO2 Crystal Phases in MnO2/CeO2 Catalyst for NO Reduction by NH3-SCR</title><author>Rao, Shyam Sunder ; Sharma, Sweta</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c319t-19abcf4e86ec3d4bfd74a3284d0102b9b3b59ee322f5cc1bd3d0c2a82073b5493</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Ammonia</topic><topic>Catalysis</topic><topic>Catalysts</topic><topic>Cerium oxides</topic><topic>Chemical reduction</topic><topic>Chemical synthesis</topic><topic>Chemistry</topic><topic>Chemistry and Materials Science</topic><topic>Electron microscopy</topic><topic>Hydrothermal crystal growth</topic><topic>Industrial Chemistry/Chemical Engineering</topic><topic>Low temperature</topic><topic>Manganese dioxide</topic><topic>Microscopy</topic><topic>Morphology</topic><topic>Nanorods</topic><topic>Nitrates</topic><topic>Organometallic Chemistry</topic><topic>Oxidation</topic><topic>Photoelectrons</topic><topic>Physical Chemistry</topic><topic>Raman spectroscopy</topic><topic>Reducing agents</topic><topic>Selective catalytic reduction</topic><topic>Selectivity</topic><topic>Spectrum analysis</topic><topic>Storage capacity</topic><topic>Temperature</topic><topic>X ray photoelectron spectroscopy</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Rao, Shyam Sunder</creatorcontrib><creatorcontrib>Sharma, Sweta</creatorcontrib><collection>CrossRef</collection><jtitle>Catalysis letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Rao, Shyam Sunder</au><au>Sharma, Sweta</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effects of MnO2 Crystal Phases in MnO2/CeO2 Catalyst for NO Reduction by NH3-SCR</atitle><jtitle>Catalysis letters</jtitle><stitle>Catal Lett</stitle><date>2024-04-01</date><risdate>2024</risdate><volume>154</volume><issue>4</issue><spage>1768</spage><epage>1781</epage><pages>1768-1781</pages><issn>1011-372X</issn><eissn>1572-879X</eissn><abstract>The low-temperature (α-/β-/γ-/δ-MnO
2
/CeO
2
-Nanorod) catalysts have been synthesized using the hydrothermal method followed by wet-impregnation and anaylzed in the Inconel reactor for selective catalytic reduction of NO using NH
3
as a reducing agent. The catalysts were characterized by the Brunauer-Emmett characterized catalysts–Teller, X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy-Energy dispersive X-ray spectroscopy, transmission electron microscopy and Raman spectroscopy. The characterization analysis of the catalysts revealed that the α-MnO
2
/CeO
2
-Nanorod has the highest specific surface area, surface Ce
3+
and Mn
4+
, and oxygen storage capacity among all the catalysts. The activity results exhibited that in the 50–450 °C temperature range, the α-MnO
2
/CeO
2
-Nanorod has the maximum NO conversion and N
2
selectivity. It showed the highest NO conversion (75%) and N
2
selectivity (86%) at 250 °C. As the amount of α-MnO
2
increased in the α-MnO
2
/CeO
2
-Nanorod catalyst, the NO conversion with N
2
selectivity exceeded 94.25% and 95%, respectively.
Graphical Abstract</abstract><cop>New York</cop><pub>Springer US</pub><doi>10.1007/s10562-023-04438-4</doi><tpages>14</tpages><orcidid>https://orcid.org/0000-0002-9439-3516</orcidid></addata></record> |
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| source | SpringerLink Journals - AutoHoldings |
| subjects | Ammonia Catalysis Catalysts Cerium oxides Chemical reduction Chemical synthesis Chemistry Chemistry and Materials Science Electron microscopy Hydrothermal crystal growth Industrial Chemistry/Chemical Engineering Low temperature Manganese dioxide Microscopy Morphology Nanorods Nitrates Organometallic Chemistry Oxidation Photoelectrons Physical Chemistry Raman spectroscopy Reducing agents Selective catalytic reduction Selectivity Spectrum analysis Storage capacity Temperature X ray photoelectron spectroscopy |
| title | Effects of MnO2 Crystal Phases in MnO2/CeO2 Catalyst for NO Reduction by NH3-SCR |
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