Mo–V–O nanocrystals synthesized in the confined space of a mesoporous carbon
[Display omitted] •Synthesis of a nanocrystalline Mo-V oxide catalyst (Nano-MoVO) is demonstrated.•Nano-MoVO possesses a structure resembling orthorhombic MoVO.•Nano-MoVO facilitates ODH of propane and improves selectivity.•Nano-MoVO exhibited >20 % higher selectivity to propene than other MoVO c...
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creator | Obunai, Ryo Tamura, Keisuke Ogino, Isao Mukai, Shin R. Ueda, Wataru |
description | [Display omitted]
•Synthesis of a nanocrystalline Mo-V oxide catalyst (Nano-MoVO) is demonstrated.•Nano-MoVO possesses a structure resembling orthorhombic MoVO.•Nano-MoVO facilitates ODH of propane and improves selectivity.•Nano-MoVO exhibited >20 % higher selectivity to propene than other MoVO catalysts.
Ternary Mo–V oxide nanocrystals (Nano-MoVO) were hydrothermally synthesized in the confined space of a mesoporous carbon template and tested in the oxidative dehydrogenation (ODH) of ethane and propane. The synthesized nanocrystals are approximately 60 nm in length, 20 nm in diameter on average, and possess a structure resembling orthorhombic MoVO (Orth-MoVO) as indicated by spectroscopic and microscopy characterization. The Nano-MoVO catalyst has a 5-fold higher mesopore volume and a 4-fold larger external surface area than an Orth-MoVO synthesized by a conventional method (Orth-MoVO) as characterized through N2 adsorption analysis. Nano-MoVO shows similar activation energy in the ODH of ethane compared with other conventional MoVO catalysts. However, Nano-MoVO exhibits significantly higher propane/ethane activation rate ratio and higher propene selectivity even in the absence of elements such as Te and Nb that suppress overoxidation of propane-derived species to COx. The results suggest the benefits of the nanocrystalline morphology to limit overoxidation. |
doi_str_mv | 10.1016/j.apcata.2021.118294 |
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•Synthesis of a nanocrystalline Mo-V oxide catalyst (Nano-MoVO) is demonstrated.•Nano-MoVO possesses a structure resembling orthorhombic MoVO.•Nano-MoVO facilitates ODH of propane and improves selectivity.•Nano-MoVO exhibited >20 % higher selectivity to propene than other MoVO catalysts.
Ternary Mo–V oxide nanocrystals (Nano-MoVO) were hydrothermally synthesized in the confined space of a mesoporous carbon template and tested in the oxidative dehydrogenation (ODH) of ethane and propane. The synthesized nanocrystals are approximately 60 nm in length, 20 nm in diameter on average, and possess a structure resembling orthorhombic MoVO (Orth-MoVO) as indicated by spectroscopic and microscopy characterization. The Nano-MoVO catalyst has a 5-fold higher mesopore volume and a 4-fold larger external surface area than an Orth-MoVO synthesized by a conventional method (Orth-MoVO) as characterized through N2 adsorption analysis. Nano-MoVO shows similar activation energy in the ODH of ethane compared with other conventional MoVO catalysts. However, Nano-MoVO exhibits significantly higher propane/ethane activation rate ratio and higher propene selectivity even in the absence of elements such as Te and Nb that suppress overoxidation of propane-derived species to COx. The results suggest the benefits of the nanocrystalline morphology to limit overoxidation.</description><identifier>ISSN: 0926-860X</identifier><identifier>EISSN: 1873-3875</identifier><identifier>DOI: 10.1016/j.apcata.2021.118294</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Alkane oxidation ; Carbon ; Catalysts ; Confined space synthesis ; Confined spaces ; Dehydrogenation ; Ethane ; Mesoporous carbon ; Morphology ; Mo–V mixed oxide ; Nano crystal ; Nanocrystals ; Propane ; Selectivity ; Synthesis</subject><ispartof>Applied catalysis. A, General, 2021-08, Vol.624, p.118294, Article 118294</ispartof><rights>2021 Elsevier B.V.</rights><rights>Copyright Elsevier Science SA Aug 25, 2021</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c380t-ab2e1dae8f7c0c42dfdb11b1bb868803e36585b8b2d5b7fd211adce0df8d92183</citedby><cites>FETCH-LOGICAL-c380t-ab2e1dae8f7c0c42dfdb11b1bb868803e36585b8b2d5b7fd211adce0df8d92183</cites><orcidid>0000-0002-7344-6420 ; 0000-0003-2194-4513</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0926860X21003082$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids></links><search><creatorcontrib>Obunai, Ryo</creatorcontrib><creatorcontrib>Tamura, Keisuke</creatorcontrib><creatorcontrib>Ogino, Isao</creatorcontrib><creatorcontrib>Mukai, Shin R.</creatorcontrib><creatorcontrib>Ueda, Wataru</creatorcontrib><title>Mo–V–O nanocrystals synthesized in the confined space of a mesoporous carbon</title><title>Applied catalysis. A, General</title><description>[Display omitted]
•Synthesis of a nanocrystalline Mo-V oxide catalyst (Nano-MoVO) is demonstrated.•Nano-MoVO possesses a structure resembling orthorhombic MoVO.•Nano-MoVO facilitates ODH of propane and improves selectivity.•Nano-MoVO exhibited >20 % higher selectivity to propene than other MoVO catalysts.
Ternary Mo–V oxide nanocrystals (Nano-MoVO) were hydrothermally synthesized in the confined space of a mesoporous carbon template and tested in the oxidative dehydrogenation (ODH) of ethane and propane. The synthesized nanocrystals are approximately 60 nm in length, 20 nm in diameter on average, and possess a structure resembling orthorhombic MoVO (Orth-MoVO) as indicated by spectroscopic and microscopy characterization. The Nano-MoVO catalyst has a 5-fold higher mesopore volume and a 4-fold larger external surface area than an Orth-MoVO synthesized by a conventional method (Orth-MoVO) as characterized through N2 adsorption analysis. Nano-MoVO shows similar activation energy in the ODH of ethane compared with other conventional MoVO catalysts. However, Nano-MoVO exhibits significantly higher propane/ethane activation rate ratio and higher propene selectivity even in the absence of elements such as Te and Nb that suppress overoxidation of propane-derived species to COx. The results suggest the benefits of the nanocrystalline morphology to limit overoxidation.</description><subject>Alkane oxidation</subject><subject>Carbon</subject><subject>Catalysts</subject><subject>Confined space synthesis</subject><subject>Confined spaces</subject><subject>Dehydrogenation</subject><subject>Ethane</subject><subject>Mesoporous carbon</subject><subject>Morphology</subject><subject>Mo–V mixed oxide</subject><subject>Nano crystal</subject><subject>Nanocrystals</subject><subject>Propane</subject><subject>Selectivity</subject><subject>Synthesis</subject><issn>0926-860X</issn><issn>1873-3875</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNp9kMtKBDEQRYMoOI7-gYuA626T9Cu9EWTwBSPjQsVdyKOCaZykTXqEceU_-Id-iT20axdFVcG9t6iD0CklOSW0Pu9y2Ws5yJwRRnNKOWvLPTSjvCmygjfVPpqRltUZr8nLITpKqSOEsLKtZujhPvx8fT-PtcJe-qDjNg3yLeG09cMrJPcJBjuPxxnr4K3z4556qQEHiyVeQwp9iGGTsJZRBX-MDuzoh5O_PkdP11ePi9tsubq5W1wuM11wMmRSMaBGAreNJrpkxhpFqaJK8ZpzUkBRV7xSXDFTqcYaRqk0Goix3LSM8mKOzqbcPob3DaRBdGET_XhSsIqThjV1s1OVk0rHkFIEK_ro1jJuBSVix050YmInduzExG60XUw2GD_4cBBF0g68BuMi6EGY4P4P-AWHyXxQ</recordid><startdate>20210825</startdate><enddate>20210825</enddate><creator>Obunai, Ryo</creator><creator>Tamura, Keisuke</creator><creator>Ogino, Isao</creator><creator>Mukai, Shin R.</creator><creator>Ueda, Wataru</creator><general>Elsevier B.V</general><general>Elsevier Science SA</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0002-7344-6420</orcidid><orcidid>https://orcid.org/0000-0003-2194-4513</orcidid></search><sort><creationdate>20210825</creationdate><title>Mo–V–O nanocrystals synthesized in the confined space of a mesoporous carbon</title><author>Obunai, Ryo ; Tamura, Keisuke ; Ogino, Isao ; Mukai, Shin R. ; Ueda, Wataru</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c380t-ab2e1dae8f7c0c42dfdb11b1bb868803e36585b8b2d5b7fd211adce0df8d92183</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Alkane oxidation</topic><topic>Carbon</topic><topic>Catalysts</topic><topic>Confined space synthesis</topic><topic>Confined spaces</topic><topic>Dehydrogenation</topic><topic>Ethane</topic><topic>Mesoporous carbon</topic><topic>Morphology</topic><topic>Mo–V mixed oxide</topic><topic>Nano crystal</topic><topic>Nanocrystals</topic><topic>Propane</topic><topic>Selectivity</topic><topic>Synthesis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Obunai, Ryo</creatorcontrib><creatorcontrib>Tamura, Keisuke</creatorcontrib><creatorcontrib>Ogino, Isao</creatorcontrib><creatorcontrib>Mukai, Shin R.</creatorcontrib><creatorcontrib>Ueda, Wataru</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Applied catalysis. A, General</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Obunai, Ryo</au><au>Tamura, Keisuke</au><au>Ogino, Isao</au><au>Mukai, Shin R.</au><au>Ueda, Wataru</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Mo–V–O nanocrystals synthesized in the confined space of a mesoporous carbon</atitle><jtitle>Applied catalysis. A, General</jtitle><date>2021-08-25</date><risdate>2021</risdate><volume>624</volume><spage>118294</spage><pages>118294-</pages><artnum>118294</artnum><issn>0926-860X</issn><eissn>1873-3875</eissn><abstract>[Display omitted]
•Synthesis of a nanocrystalline Mo-V oxide catalyst (Nano-MoVO) is demonstrated.•Nano-MoVO possesses a structure resembling orthorhombic MoVO.•Nano-MoVO facilitates ODH of propane and improves selectivity.•Nano-MoVO exhibited >20 % higher selectivity to propene than other MoVO catalysts.
Ternary Mo–V oxide nanocrystals (Nano-MoVO) were hydrothermally synthesized in the confined space of a mesoporous carbon template and tested in the oxidative dehydrogenation (ODH) of ethane and propane. The synthesized nanocrystals are approximately 60 nm in length, 20 nm in diameter on average, and possess a structure resembling orthorhombic MoVO (Orth-MoVO) as indicated by spectroscopic and microscopy characterization. The Nano-MoVO catalyst has a 5-fold higher mesopore volume and a 4-fold larger external surface area than an Orth-MoVO synthesized by a conventional method (Orth-MoVO) as characterized through N2 adsorption analysis. Nano-MoVO shows similar activation energy in the ODH of ethane compared with other conventional MoVO catalysts. However, Nano-MoVO exhibits significantly higher propane/ethane activation rate ratio and higher propene selectivity even in the absence of elements such as Te and Nb that suppress overoxidation of propane-derived species to COx. The results suggest the benefits of the nanocrystalline morphology to limit overoxidation.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.apcata.2021.118294</doi><orcidid>https://orcid.org/0000-0002-7344-6420</orcidid><orcidid>https://orcid.org/0000-0003-2194-4513</orcidid><oa>free_for_read</oa></addata></record> |
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subjects | Alkane oxidation Carbon Catalysts Confined space synthesis Confined spaces Dehydrogenation Ethane Mesoporous carbon Morphology Mo–V mixed oxide Nano crystal Nanocrystals Propane Selectivity Synthesis |
title | Mo–V–O nanocrystals synthesized in the confined space of a mesoporous carbon |
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