Room-temperature activation of the C-H bond in the dehydrogenation of ethane over a Cu/TiO catalyst
A novel photocatalytic system of Cu/TiO 2 for activation the C-H bond in the dehydrogenation of ethane to ethylene at room temperature is proposed. The optimized 1%-Cu/TiO 2 catalyst achieved C 2 H 6 conversion of 1.70%, C 2 H 4 selectivity of 98.41%, and exhibited excellent stability. The active si...
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| Veröffentlicht in: | Chemical communications (Cambridge, England) England), 2023-01, Vol.59 (4), p.478-481 |
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| container_title | Chemical communications (Cambridge, England) |
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| creator | Song, Lei Zhang, Ronghao Zhou, Changan Shu, Guoqiang Ma, Kui Yue, Hairong |
| description | A novel photocatalytic system of Cu/TiO
2
for activation the C-H bond in the dehydrogenation of ethane to ethylene at room temperature is proposed. The optimized 1%-Cu/TiO
2
catalyst achieved C
2
H
6
conversion of 1.70%, C
2
H
4
selectivity of 98.41%, and exhibited excellent stability. The active site Cu
δ
+
showed high dispersion on the TiO
2
surface. Theoretical calculations and
in situ
diffuse reflectance infrared Fourier transform spectroscopy revealed a reaction mechanism: C
2
H
6
is first activated by adsorption over the Cu
4C
/TiO
2
catalyst with elongation of the C-H bond, attacked by h
+
/&z.rad;OH to form ethyl radicals, which are then converted to C
2
H
4
.
Selective activation of the C-H bond was realized in the direct dehydrogenation of ethane to ethylene with photocatalysis at room temperature. |
| doi_str_mv | 10.1039/d2cc05438h |
| format | Article |
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2
for activation the C-H bond in the dehydrogenation of ethane to ethylene at room temperature is proposed. The optimized 1%-Cu/TiO
2
catalyst achieved C
2
H
6
conversion of 1.70%, C
2
H
4
selectivity of 98.41%, and exhibited excellent stability. The active site Cu
δ
+
showed high dispersion on the TiO
2
surface. Theoretical calculations and
in situ
diffuse reflectance infrared Fourier transform spectroscopy revealed a reaction mechanism: C
2
H
6
is first activated by adsorption over the Cu
4C
/TiO
2
catalyst with elongation of the C-H bond, attacked by h
+
/&z.rad;OH to form ethyl radicals, which are then converted to C
2
H
4
.
Selective activation of the C-H bond was realized in the direct dehydrogenation of ethane to ethylene with photocatalysis at room temperature.</description><identifier>ISSN: 1359-7345</identifier><identifier>EISSN: 1364-548X</identifier><identifier>DOI: 10.1039/d2cc05438h</identifier><ispartof>Chemical communications (Cambridge, England), 2023-01, Vol.59 (4), p.478-481</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,777,781,27905,27906</link.rule.ids></links><search><creatorcontrib>Song, Lei</creatorcontrib><creatorcontrib>Zhang, Ronghao</creatorcontrib><creatorcontrib>Zhou, Changan</creatorcontrib><creatorcontrib>Shu, Guoqiang</creatorcontrib><creatorcontrib>Ma, Kui</creatorcontrib><creatorcontrib>Yue, Hairong</creatorcontrib><title>Room-temperature activation of the C-H bond in the dehydrogenation of ethane over a Cu/TiO catalyst</title><title>Chemical communications (Cambridge, England)</title><description>A novel photocatalytic system of Cu/TiO
2
for activation the C-H bond in the dehydrogenation of ethane to ethylene at room temperature is proposed. The optimized 1%-Cu/TiO
2
catalyst achieved C
2
H
6
conversion of 1.70%, C
2
H
4
selectivity of 98.41%, and exhibited excellent stability. The active site Cu
δ
+
showed high dispersion on the TiO
2
surface. Theoretical calculations and
in situ
diffuse reflectance infrared Fourier transform spectroscopy revealed a reaction mechanism: C
2
H
6
is first activated by adsorption over the Cu
4C
/TiO
2
catalyst with elongation of the C-H bond, attacked by h
+
/&z.rad;OH to form ethyl radicals, which are then converted to C
2
H
4
.
Selective activation of the C-H bond was realized in the direct dehydrogenation of ethane to ethylene with photocatalysis at room temperature.</description><issn>1359-7345</issn><issn>1364-548X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><sourceid/><recordid>eNqFjj0LwjAYhIMo-Lm4C-8fiLam0ToXxU2QDm7ymr7aiE0kiUL_vR-Ijt5y93A3HGPDOBrHkVhMiqlSkUxEWjZYJxazhMsk3TVfWS74XCSyzbren6OnYpl2mNpaW_FA1ZUchpsjQBX0HYO2BuwRQkmQ8TUcrClAmzcXVNaFsycy3xmFEg2BvZMDhOw2yfUGFAa81D70WeuIF0-Dj_fYaLXMszV3Xu2vTlfo6v3vufjXPwBL9Ecn</recordid><startdate>20230105</startdate><enddate>20230105</enddate><creator>Song, Lei</creator><creator>Zhang, Ronghao</creator><creator>Zhou, Changan</creator><creator>Shu, Guoqiang</creator><creator>Ma, Kui</creator><creator>Yue, Hairong</creator><scope/></search><sort><creationdate>20230105</creationdate><title>Room-temperature activation of the C-H bond in the dehydrogenation of ethane over a Cu/TiO catalyst</title><author>Song, Lei ; Zhang, Ronghao ; Zhou, Changan ; Shu, Guoqiang ; Ma, Kui ; Yue, Hairong</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-rsc_primary_d2cc05438h3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><creationdate>2023</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Song, Lei</creatorcontrib><creatorcontrib>Zhang, Ronghao</creatorcontrib><creatorcontrib>Zhou, Changan</creatorcontrib><creatorcontrib>Shu, Guoqiang</creatorcontrib><creatorcontrib>Ma, Kui</creatorcontrib><creatorcontrib>Yue, Hairong</creatorcontrib><jtitle>Chemical communications (Cambridge, England)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Song, Lei</au><au>Zhang, Ronghao</au><au>Zhou, Changan</au><au>Shu, Guoqiang</au><au>Ma, Kui</au><au>Yue, Hairong</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Room-temperature activation of the C-H bond in the dehydrogenation of ethane over a Cu/TiO catalyst</atitle><jtitle>Chemical communications (Cambridge, England)</jtitle><date>2023-01-05</date><risdate>2023</risdate><volume>59</volume><issue>4</issue><spage>478</spage><epage>481</epage><pages>478-481</pages><issn>1359-7345</issn><eissn>1364-548X</eissn><abstract>A novel photocatalytic system of Cu/TiO
2
for activation the C-H bond in the dehydrogenation of ethane to ethylene at room temperature is proposed. The optimized 1%-Cu/TiO
2
catalyst achieved C
2
H
6
conversion of 1.70%, C
2
H
4
selectivity of 98.41%, and exhibited excellent stability. The active site Cu
δ
+
showed high dispersion on the TiO
2
surface. Theoretical calculations and
in situ
diffuse reflectance infrared Fourier transform spectroscopy revealed a reaction mechanism: C
2
H
6
is first activated by adsorption over the Cu
4C
/TiO
2
catalyst with elongation of the C-H bond, attacked by h
+
/&z.rad;OH to form ethyl radicals, which are then converted to C
2
H
4
.
Selective activation of the C-H bond was realized in the direct dehydrogenation of ethane to ethylene with photocatalysis at room temperature.</abstract><doi>10.1039/d2cc05438h</doi><tpages>4</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1359-7345 |
| ispartof | Chemical communications (Cambridge, England), 2023-01, Vol.59 (4), p.478-481 |
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| language | |
| recordid | cdi_rsc_primary_d2cc05438h |
| source | Royal Society Of Chemistry Journals 2008-; Alma/SFX Local Collection |
| title | Room-temperature activation of the C-H bond in the dehydrogenation of ethane over a Cu/TiO catalyst |
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