Effect of Surface Tungstate W5+ Species on the Metathesis Activity of W-Doped Spherical Silica Catalysts
The high surface area W-doped spherical silica (SSP) catalysts were prepared with different sequences of W and Si addition (W–Si (Alt), Si 1 –W 2, and W 1 –Si 2 ) by the sol–gel method with CTAB as a structure directing agent and compared with the impregnated one (W/SSP). All the catalysts exhibited...
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container_title | Topics in catalysis |
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creator | Watmanee, Suthasinee Suriye, Kongkiate Praserthdam, Piyasan Panpranot, Joongjai |
description | The high surface area W-doped spherical silica (SSP) catalysts were prepared with different sequences of W and Si addition (W–Si
(Alt),
Si
1
–W
2,
and W
1
–Si
2
) by the sol–gel method with CTAB as a structure directing agent and compared with the impregnated one (W/SSP). All the catalysts exhibited high specific surface area (∼ 1100 m
2
g
−1
) with a closely perfect spherical shape. The presence of surface/sub-surface tungstate W
5+
species, crystalline bulk WO
3
, and tetrahedral tungsten oxide species on the prepared catalysts was investigated by means of X-ray photoelectron spectroscopy depth profile analysis, X-ray diffraction, and Raman spectroscopy. Without in situ reduction by the reactants/products, tungstate W
5+
species was found on the top surface of the as-prepared W–Si
(Alt)
whereas for the Si
1
–W
2
, W/SSP, and W
1
–Si
2
, the W
5+
appeared only on the sub-surface of the catalysts after 5 and 15 s Ar
+
etching. The abundance of surface W
5+
species is suggested to facilitate the establishment of the active tungsten carbenes and was correlated well to the catalytic activity in propene metathesis. The surface W
5+
-activity relationship of the WO
3
-based metathesis catalysts is useful especially when the catalyst activity did not depend solely on the amount of active tetrahedral coordinated tungsten oxides. |
doi_str_mv | 10.1007/s11244-018-1020-4 |
format | Article |
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(Alt),
Si
1
–W
2,
and W
1
–Si
2
) by the sol–gel method with CTAB as a structure directing agent and compared with the impregnated one (W/SSP). All the catalysts exhibited high specific surface area (∼ 1100 m
2
g
−1
) with a closely perfect spherical shape. The presence of surface/sub-surface tungstate W
5+
species, crystalline bulk WO
3
, and tetrahedral tungsten oxide species on the prepared catalysts was investigated by means of X-ray photoelectron spectroscopy depth profile analysis, X-ray diffraction, and Raman spectroscopy. Without in situ reduction by the reactants/products, tungstate W
5+
species was found on the top surface of the as-prepared W–Si
(Alt)
whereas for the Si
1
–W
2
, W/SSP, and W
1
–Si
2
, the W
5+
appeared only on the sub-surface of the catalysts after 5 and 15 s Ar
+
etching. The abundance of surface W
5+
species is suggested to facilitate the establishment of the active tungsten carbenes and was correlated well to the catalytic activity in propene metathesis. The surface W
5+
-activity relationship of the WO
3
-based metathesis catalysts is useful especially when the catalyst activity did not depend solely on the amount of active tetrahedral coordinated tungsten oxides.</description><identifier>ISSN: 1022-5528</identifier><identifier>EISSN: 1572-9028</identifier><identifier>DOI: 10.1007/s11244-018-1020-4</identifier><language>eng</language><publisher>New York: Springer US</publisher><subject>Carbenes ; Catalysis ; Catalysts ; Catalytic activity ; Characterization and Evaluation of Materials ; Chemistry ; Chemistry and Materials Science ; Industrial Chemistry/Chemical Engineering ; Metathesis ; Original Paper ; Pharmacy ; Physical Chemistry ; Raman spectroscopy ; Silicon dioxide ; Sol-gel processes ; Spectrum analysis ; Surface area ; Tungsten oxides ; X ray photoelectron spectroscopy ; X-ray diffraction</subject><ispartof>Topics in catalysis, 2018, Vol.61 (15-17), p.1615-1623</ispartof><rights>Springer Science+Business Media, LLC, part of Springer Nature 2018</rights><rights>Copyright Springer Science & Business Media 2018</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c283t-2e93515db12d749b9df07a39973b704dcf2dfd697a4237a88794d3e14feb731e3</citedby><cites>FETCH-LOGICAL-c283t-2e93515db12d749b9df07a39973b704dcf2dfd697a4237a88794d3e14feb731e3</cites><orcidid>0000-0002-0398-5912</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/s11244-018-1020-4$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s11244-018-1020-4$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids></links><search><creatorcontrib>Watmanee, Suthasinee</creatorcontrib><creatorcontrib>Suriye, Kongkiate</creatorcontrib><creatorcontrib>Praserthdam, Piyasan</creatorcontrib><creatorcontrib>Panpranot, Joongjai</creatorcontrib><title>Effect of Surface Tungstate W5+ Species on the Metathesis Activity of W-Doped Spherical Silica Catalysts</title><title>Topics in catalysis</title><addtitle>Top Catal</addtitle><description>The high surface area W-doped spherical silica (SSP) catalysts were prepared with different sequences of W and Si addition (W–Si
(Alt),
Si
1
–W
2,
and W
1
–Si
2
) by the sol–gel method with CTAB as a structure directing agent and compared with the impregnated one (W/SSP). All the catalysts exhibited high specific surface area (∼ 1100 m
2
g
−1
) with a closely perfect spherical shape. The presence of surface/sub-surface tungstate W
5+
species, crystalline bulk WO
3
, and tetrahedral tungsten oxide species on the prepared catalysts was investigated by means of X-ray photoelectron spectroscopy depth profile analysis, X-ray diffraction, and Raman spectroscopy. Without in situ reduction by the reactants/products, tungstate W
5+
species was found on the top surface of the as-prepared W–Si
(Alt)
whereas for the Si
1
–W
2
, W/SSP, and W
1
–Si
2
, the W
5+
appeared only on the sub-surface of the catalysts after 5 and 15 s Ar
+
etching. The abundance of surface W
5+
species is suggested to facilitate the establishment of the active tungsten carbenes and was correlated well to the catalytic activity in propene metathesis. The surface W
5+
-activity relationship of the WO
3
-based metathesis catalysts is useful especially when the catalyst activity did not depend solely on the amount of active tetrahedral coordinated tungsten oxides.</description><subject>Carbenes</subject><subject>Catalysis</subject><subject>Catalysts</subject><subject>Catalytic activity</subject><subject>Characterization and Evaluation of Materials</subject><subject>Chemistry</subject><subject>Chemistry and Materials Science</subject><subject>Industrial Chemistry/Chemical Engineering</subject><subject>Metathesis</subject><subject>Original Paper</subject><subject>Pharmacy</subject><subject>Physical Chemistry</subject><subject>Raman spectroscopy</subject><subject>Silicon dioxide</subject><subject>Sol-gel processes</subject><subject>Spectrum analysis</subject><subject>Surface area</subject><subject>Tungsten oxides</subject><subject>X ray photoelectron spectroscopy</subject><subject>X-ray diffraction</subject><issn>1022-5528</issn><issn>1572-9028</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNp1kE1LxDAQhosouH78AG8BjxLNpOmmOS7r-gErHnZljyFtJ9suta1JKuy_t6WCJ08zMM_7DjxRdAPsHhiTDx6AC0EZpBQYZ1ScRDNIJKeK8fR02BnnNEl4eh5deH9gjINUahaVK2sxD6S1ZNM7a3Ik277Z-2ACkl1yRzYd5hV60jYklEjecLiU6CtPFnmovqtwHLM7-th2WAx0ia7KTU02VT1MsjTB1Ecf_FV0Zk3t8fp3XkYfT6vt8oWu359fl4s1zXkaB8pRxQkkRQa8kEJlqrBMmlgpGWeSiSK3vLDFXEkjeCxNmkolihhBWMxkDBhfRrdTb-farx590Ie2d83wUnMACXKezMVAwUTlrvXeodWdqz6NO2pgehSqJ6F6EKpHoXrM8CnjB7bZo_tr_j_0A-r8d4o</recordid><startdate>2018</startdate><enddate>2018</enddate><creator>Watmanee, Suthasinee</creator><creator>Suriye, Kongkiate</creator><creator>Praserthdam, Piyasan</creator><creator>Panpranot, Joongjai</creator><general>Springer US</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><orcidid>https://orcid.org/0000-0002-0398-5912</orcidid></search><sort><creationdate>2018</creationdate><title>Effect of Surface Tungstate W5+ Species on the Metathesis Activity of W-Doped Spherical Silica Catalysts</title><author>Watmanee, Suthasinee ; Suriye, Kongkiate ; Praserthdam, Piyasan ; Panpranot, Joongjai</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c283t-2e93515db12d749b9df07a39973b704dcf2dfd697a4237a88794d3e14feb731e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Carbenes</topic><topic>Catalysis</topic><topic>Catalysts</topic><topic>Catalytic activity</topic><topic>Characterization and Evaluation of Materials</topic><topic>Chemistry</topic><topic>Chemistry and Materials Science</topic><topic>Industrial Chemistry/Chemical Engineering</topic><topic>Metathesis</topic><topic>Original Paper</topic><topic>Pharmacy</topic><topic>Physical Chemistry</topic><topic>Raman spectroscopy</topic><topic>Silicon dioxide</topic><topic>Sol-gel processes</topic><topic>Spectrum analysis</topic><topic>Surface area</topic><topic>Tungsten oxides</topic><topic>X ray photoelectron spectroscopy</topic><topic>X-ray diffraction</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Watmanee, Suthasinee</creatorcontrib><creatorcontrib>Suriye, Kongkiate</creatorcontrib><creatorcontrib>Praserthdam, Piyasan</creatorcontrib><creatorcontrib>Panpranot, Joongjai</creatorcontrib><collection>CrossRef</collection><jtitle>Topics in catalysis</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Watmanee, Suthasinee</au><au>Suriye, Kongkiate</au><au>Praserthdam, Piyasan</au><au>Panpranot, Joongjai</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of Surface Tungstate W5+ Species on the Metathesis Activity of W-Doped Spherical Silica Catalysts</atitle><jtitle>Topics in catalysis</jtitle><stitle>Top Catal</stitle><date>2018</date><risdate>2018</risdate><volume>61</volume><issue>15-17</issue><spage>1615</spage><epage>1623</epage><pages>1615-1623</pages><issn>1022-5528</issn><eissn>1572-9028</eissn><abstract>The high surface area W-doped spherical silica (SSP) catalysts were prepared with different sequences of W and Si addition (W–Si
(Alt),
Si
1
–W
2,
and W
1
–Si
2
) by the sol–gel method with CTAB as a structure directing agent and compared with the impregnated one (W/SSP). All the catalysts exhibited high specific surface area (∼ 1100 m
2
g
−1
) with a closely perfect spherical shape. The presence of surface/sub-surface tungstate W
5+
species, crystalline bulk WO
3
, and tetrahedral tungsten oxide species on the prepared catalysts was investigated by means of X-ray photoelectron spectroscopy depth profile analysis, X-ray diffraction, and Raman spectroscopy. Without in situ reduction by the reactants/products, tungstate W
5+
species was found on the top surface of the as-prepared W–Si
(Alt)
whereas for the Si
1
–W
2
, W/SSP, and W
1
–Si
2
, the W
5+
appeared only on the sub-surface of the catalysts after 5 and 15 s Ar
+
etching. The abundance of surface W
5+
species is suggested to facilitate the establishment of the active tungsten carbenes and was correlated well to the catalytic activity in propene metathesis. The surface W
5+
-activity relationship of the WO
3
-based metathesis catalysts is useful especially when the catalyst activity did not depend solely on the amount of active tetrahedral coordinated tungsten oxides.</abstract><cop>New York</cop><pub>Springer US</pub><doi>10.1007/s11244-018-1020-4</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0002-0398-5912</orcidid></addata></record> |
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subjects | Carbenes Catalysis Catalysts Catalytic activity Characterization and Evaluation of Materials Chemistry Chemistry and Materials Science Industrial Chemistry/Chemical Engineering Metathesis Original Paper Pharmacy Physical Chemistry Raman spectroscopy Silicon dioxide Sol-gel processes Spectrum analysis Surface area Tungsten oxides X ray photoelectron spectroscopy X-ray diffraction |
title | Effect of Surface Tungstate W5+ Species on the Metathesis Activity of W-Doped Spherical Silica Catalysts |
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