Effect of Ru on the activity of Co3O4 catalysts for chlorinated aromatics oxidationElectronic supplementary information (ESI) available. See DOI: 10.1039/c8cy01484a
Ru/Co 3 O 4 catalysts with a Ru content of 0-2 wt% were prepared by wet impregnation, and used in the catalytic combustion of chlorinated aromatic VOCs. Characterization by XRD, HRTEM, EXAFS, XPS, and H 2 -TPR showed that Co 3 O 4 existed in the form of a spinel structure. Some Ru species entered th...
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| creator | Lao, Yijie Zhu, Naxin Jiang, Xingxing Zhao, Jian Dai, Qiguang Wang, Xingyi |
| description | Ru/Co
3
O
4
catalysts with a Ru content of 0-2 wt% were prepared by wet impregnation, and used in the catalytic combustion of chlorinated aromatic VOCs. Characterization by XRD, HRTEM, EXAFS, XPS, and H
2
-TPR showed that Co
3
O
4
existed in the form of a spinel structure. Some Ru species entered the octahedral sites of Co
3
O
4
to form Ru-O-Co, which significantly increased the surface oxygen, while the formation of RuO
x
clusters or nanoparticles on the surface promoted the reducibility of Co
3
O
4
. In the oxidation of chlorinated aromatics, Ru species can retard the negative effect of Cl species on the activity of Co
3
O
4
catalysts through modification in the chemical environments of surface oxygen and Cl species. The Ru/Co
3
O
4
catalysts presented good activity and selectivity, with a rate (
R
Ru
) of 9.4-9.8 μmol m
−2
min
−1
under 1000 ppm 1,2-dichlorobenzene at 30 000 ml g
−1
h
−1
. The
R
Ru
in wet feed over 2.0% Ru/Co
3
O
4
was increased by almost 100%, through the increase in availability of active surface oxygen from RuO
x
. A highly stable activity could be maintained for at least 50 h.
In situ
FT-IR showed that 1,2-DCB adsorbs on the Co
3+
/Co
2+
sites of Ru/Co
3
O
4
catalysts, and the formation of partial oxidation products involve the surface oxygen. For the Co
3
O
4
catalyst, surface active oxygen is almost not available during 1,2-DCB oxidation.
A Ru/Co
3
O
4
catalyst with Ru-O-Co structure presented highly stable activity and selectivity in 1,2-DCB oxidation. |
| doi_str_mv | 10.1039/c8cy01484a |
| format | Article |
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3
O
4
catalysts with a Ru content of 0-2 wt% were prepared by wet impregnation, and used in the catalytic combustion of chlorinated aromatic VOCs. Characterization by XRD, HRTEM, EXAFS, XPS, and H
2
-TPR showed that Co
3
O
4
existed in the form of a spinel structure. Some Ru species entered the octahedral sites of Co
3
O
4
to form Ru-O-Co, which significantly increased the surface oxygen, while the formation of RuO
x
clusters or nanoparticles on the surface promoted the reducibility of Co
3
O
4
. In the oxidation of chlorinated aromatics, Ru species can retard the negative effect of Cl species on the activity of Co
3
O
4
catalysts through modification in the chemical environments of surface oxygen and Cl species. The Ru/Co
3
O
4
catalysts presented good activity and selectivity, with a rate (
R
Ru
) of 9.4-9.8 μmol m
−2
min
−1
under 1000 ppm 1,2-dichlorobenzene at 30 000 ml g
−1
h
−1
. The
R
Ru
in wet feed over 2.0% Ru/Co
3
O
4
was increased by almost 100%, through the increase in availability of active surface oxygen from RuO
x
. A highly stable activity could be maintained for at least 50 h.
In situ
FT-IR showed that 1,2-DCB adsorbs on the Co
3+
/Co
2+
sites of Ru/Co
3
O
4
catalysts, and the formation of partial oxidation products involve the surface oxygen. For the Co
3
O
4
catalyst, surface active oxygen is almost not available during 1,2-DCB oxidation.
A Ru/Co
3
O
4
catalyst with Ru-O-Co structure presented highly stable activity and selectivity in 1,2-DCB oxidation.</description><identifier>ISSN: 2044-4753</identifier><identifier>EISSN: 2044-4761</identifier><identifier>DOI: 10.1039/c8cy01484a</identifier><language>eng</language><creationdate>2018-09</creationdate><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27915,27916</link.rule.ids></links><search><creatorcontrib>Lao, Yijie</creatorcontrib><creatorcontrib>Zhu, Naxin</creatorcontrib><creatorcontrib>Jiang, Xingxing</creatorcontrib><creatorcontrib>Zhao, Jian</creatorcontrib><creatorcontrib>Dai, Qiguang</creatorcontrib><creatorcontrib>Wang, Xingyi</creatorcontrib><title>Effect of Ru on the activity of Co3O4 catalysts for chlorinated aromatics oxidationElectronic supplementary information (ESI) available. See DOI: 10.1039/c8cy01484a</title><description>Ru/Co
3
O
4
catalysts with a Ru content of 0-2 wt% were prepared by wet impregnation, and used in the catalytic combustion of chlorinated aromatic VOCs. Characterization by XRD, HRTEM, EXAFS, XPS, and H
2
-TPR showed that Co
3
O
4
existed in the form of a spinel structure. Some Ru species entered the octahedral sites of Co
3
O
4
to form Ru-O-Co, which significantly increased the surface oxygen, while the formation of RuO
x
clusters or nanoparticles on the surface promoted the reducibility of Co
3
O
4
. In the oxidation of chlorinated aromatics, Ru species can retard the negative effect of Cl species on the activity of Co
3
O
4
catalysts through modification in the chemical environments of surface oxygen and Cl species. The Ru/Co
3
O
4
catalysts presented good activity and selectivity, with a rate (
R
Ru
) of 9.4-9.8 μmol m
−2
min
−1
under 1000 ppm 1,2-dichlorobenzene at 30 000 ml g
−1
h
−1
. The
R
Ru
in wet feed over 2.0% Ru/Co
3
O
4
was increased by almost 100%, through the increase in availability of active surface oxygen from RuO
x
. A highly stable activity could be maintained for at least 50 h.
In situ
FT-IR showed that 1,2-DCB adsorbs on the Co
3+
/Co
2+
sites of Ru/Co
3
O
4
catalysts, and the formation of partial oxidation products involve the surface oxygen. For the Co
3
O
4
catalyst, surface active oxygen is almost not available during 1,2-DCB oxidation.
A Ru/Co
3
O
4
catalyst with Ru-O-Co structure presented highly stable activity and selectivity in 1,2-DCB oxidation.</description><issn>2044-4753</issn><issn>2044-4761</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><sourceid/><recordid>eNqFj0FLAzEQhYMoWNpeei-MNz20Jk3Urde6Yk-F1vsyZhMaySZLkhb3__hDTUX0ILRzeY-Z9z4YQkaMThnl81tZyI4yUQg8I70ZFWIiHu7Z-a-_45dkGOM7zSPmjBazHvkstVYygdew3oF3kLYKUCazN6k7bBeerwRITGi7mCJoH0BurQ_GYVI1YPANJiMj-A9TZ-ddaTMxeGckxF3bWtUolzB0YFxuN98ZuC43yxvAPRqLb1ZNYaMUPK2Wj_D_nQG50GijGv5on4yfy9fFyyREWbXBNBle_cV5n1wdu1dtrfkpxheyJWiv</recordid><startdate>20180917</startdate><enddate>20180917</enddate><creator>Lao, Yijie</creator><creator>Zhu, Naxin</creator><creator>Jiang, Xingxing</creator><creator>Zhao, Jian</creator><creator>Dai, Qiguang</creator><creator>Wang, Xingyi</creator><scope/></search><sort><creationdate>20180917</creationdate><title>Effect of Ru on the activity of Co3O4 catalysts for chlorinated aromatics oxidationElectronic supplementary information (ESI) available. See DOI: 10.1039/c8cy01484a</title><author>Lao, Yijie ; Zhu, Naxin ; Jiang, Xingxing ; Zhao, Jian ; Dai, Qiguang ; Wang, Xingyi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-rsc_primary_c8cy01484a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><toplevel>online_resources</toplevel><creatorcontrib>Lao, Yijie</creatorcontrib><creatorcontrib>Zhu, Naxin</creatorcontrib><creatorcontrib>Jiang, Xingxing</creatorcontrib><creatorcontrib>Zhao, Jian</creatorcontrib><creatorcontrib>Dai, Qiguang</creatorcontrib><creatorcontrib>Wang, Xingyi</creatorcontrib></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lao, Yijie</au><au>Zhu, Naxin</au><au>Jiang, Xingxing</au><au>Zhao, Jian</au><au>Dai, Qiguang</au><au>Wang, Xingyi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of Ru on the activity of Co3O4 catalysts for chlorinated aromatics oxidationElectronic supplementary information (ESI) available. See DOI: 10.1039/c8cy01484a</atitle><date>2018-09-17</date><risdate>2018</risdate><volume>8</volume><issue>18</issue><spage>4797</spage><epage>4811</epage><pages>4797-4811</pages><issn>2044-4753</issn><eissn>2044-4761</eissn><abstract>Ru/Co
3
O
4
catalysts with a Ru content of 0-2 wt% were prepared by wet impregnation, and used in the catalytic combustion of chlorinated aromatic VOCs. Characterization by XRD, HRTEM, EXAFS, XPS, and H
2
-TPR showed that Co
3
O
4
existed in the form of a spinel structure. Some Ru species entered the octahedral sites of Co
3
O
4
to form Ru-O-Co, which significantly increased the surface oxygen, while the formation of RuO
x
clusters or nanoparticles on the surface promoted the reducibility of Co
3
O
4
. In the oxidation of chlorinated aromatics, Ru species can retard the negative effect of Cl species on the activity of Co
3
O
4
catalysts through modification in the chemical environments of surface oxygen and Cl species. The Ru/Co
3
O
4
catalysts presented good activity and selectivity, with a rate (
R
Ru
) of 9.4-9.8 μmol m
−2
min
−1
under 1000 ppm 1,2-dichlorobenzene at 30 000 ml g
−1
h
−1
. The
R
Ru
in wet feed over 2.0% Ru/Co
3
O
4
was increased by almost 100%, through the increase in availability of active surface oxygen from RuO
x
. A highly stable activity could be maintained for at least 50 h.
In situ
FT-IR showed that 1,2-DCB adsorbs on the Co
3+
/Co
2+
sites of Ru/Co
3
O
4
catalysts, and the formation of partial oxidation products involve the surface oxygen. For the Co
3
O
4
catalyst, surface active oxygen is almost not available during 1,2-DCB oxidation.
A Ru/Co
3
O
4
catalyst with Ru-O-Co structure presented highly stable activity and selectivity in 1,2-DCB oxidation.</abstract><doi>10.1039/c8cy01484a</doi><tpages>15</tpages></addata></record> |
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| language | eng |
| recordid | cdi_rsc_primary_c8cy01484a |
| source | Royal Society Of Chemistry Journals 2008- |
| title | Effect of Ru on the activity of Co3O4 catalysts for chlorinated aromatics oxidationElectronic supplementary information (ESI) available. See DOI: 10.1039/c8cy01484a |
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