Mg–Fe–Al–O for advanced CO 2 to CO conversion: carbon monoxide yield vs. oxygen storage capacity
A detailed study of new oxygen carrier materials, Mg–Fe–Al–O, with various loadings of iron oxide (10–100 wt% Fe 2 O 3 ) is carried out in order to investigate the relationship between material transformation, stability and CO yield from CO 2 conversion. In situ XRD during H 2 -TPR, CO 2 -TPO and is...
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| Veröffentlicht in: | Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2015, Vol.3 (31), p.16251-16262 |
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| container_title | Journal of materials chemistry. A, Materials for energy and sustainability |
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| creator | Dharanipragada, N. V. R. Aditya Buelens, Lukas C. Poelman, Hilde De Grave, Eddy Galvita, Vladimir V. Marin, Guy B. |
| description | A detailed study of new oxygen carrier materials, Mg–Fe–Al–O, with various loadings of iron oxide (10–100 wt% Fe
2
O
3
) is carried out in order to investigate the relationship between material transformation, stability and CO yield from CO
2
conversion.
In situ
XRD during H
2
-TPR, CO
2
-TPO and isothermal chemical looping cycles as well as Mössbauer spectroscopy are employed. All samples show the formation of a spinel phase, MgFeAlO
x
. High loadings of iron oxide (50–90 wt%) lead to both spinel and Fe
2
O
3
phases and show deactivation in cycling as a result of Fe
2
O
3
particle sintering. During the reduction, reoxidation and cycling of the spinel MgFeAlO
x
phase, only limited sintering occurs. This is evidenced by the stable spinel crystallite sizes (∼15–20 nm) during isothermal cycling. The reduction of MgFe
3+
AlO
x
starts at 400 °C and proceeds
via
partial reduction to MgFe
2+
AlO
x
. Prolonged cycling and higher temperatures (>750 °C) lead to deeper reduction and segregation of Fe from the spinel structure. Very high stability and CO yield from CO
2
conversion are found in Mg–Fe–Al–O materials with 10 wt% Fe
2
O
3
,
i.e.
the lowest oxygen storage capacity among the tested samples. Compared to 10 wt% Fe
2
O
3
supported on Al
2
O
3
or MgO, the CO yield of the 10 wt% Fe
2
O
3
–MgFeAlO
x
spinel is ten times higher. |
| doi_str_mv | 10.1039/C5TA02289D |
| format | Article |
| fullrecord | <record><control><sourceid>crossref</sourceid><recordid>TN_cdi_crossref_primary_10_1039_C5TA02289D</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>10_1039_C5TA02289D</sourcerecordid><originalsourceid>FETCH-LOGICAL-c76D-e2f16ac94961a6225777250a061c5efb27c645f3faf058bfabcc35fb15d85e5a3</originalsourceid><addsrcrecordid>eNpFUMFKxDAUDKLgsu7FL8hZ6JqkmzTxVrruKqz00nt5TZNS6TZLUsr25j_4h36JXRSdw8wchmEYhO4pWVMSq8eMFylhTKrtFVowwkmUbJS4_vNS3qJVCO9khiREKLVA9q35-vjcmZnSbqYcW-cx1CP02tQ4yzHDg7uodv1ofGhd_4Q1-Mr1-Oh6d25rg6fWdDUewxq789SYHofBeWjMHDyBbofpDt1Y6IJZ_eoSFbvnInuJDvn-NUsPkU7ENjLMUgFazaspCMZ4kiSMEyCCam5sxRItNtzGFizhsrJQaR1zW1FeS244xEv08FOrvQvBG1uefHsEP5WUlJePyv-P4m_MYluk</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Mg–Fe–Al–O for advanced CO 2 to CO conversion: carbon monoxide yield vs. oxygen storage capacity</title><source>Royal Society Of Chemistry Journals 2008-</source><source>Alma/SFX Local Collection</source><creator>Dharanipragada, N. V. R. Aditya ; Buelens, Lukas C. ; Poelman, Hilde ; De Grave, Eddy ; Galvita, Vladimir V. ; Marin, Guy B.</creator><creatorcontrib>Dharanipragada, N. V. R. Aditya ; Buelens, Lukas C. ; Poelman, Hilde ; De Grave, Eddy ; Galvita, Vladimir V. ; Marin, Guy B.</creatorcontrib><description>A detailed study of new oxygen carrier materials, Mg–Fe–Al–O, with various loadings of iron oxide (10–100 wt% Fe
2
O
3
) is carried out in order to investigate the relationship between material transformation, stability and CO yield from CO
2
conversion.
In situ
XRD during H
2
-TPR, CO
2
-TPO and isothermal chemical looping cycles as well as Mössbauer spectroscopy are employed. All samples show the formation of a spinel phase, MgFeAlO
x
. High loadings of iron oxide (50–90 wt%) lead to both spinel and Fe
2
O
3
phases and show deactivation in cycling as a result of Fe
2
O
3
particle sintering. During the reduction, reoxidation and cycling of the spinel MgFeAlO
x
phase, only limited sintering occurs. This is evidenced by the stable spinel crystallite sizes (∼15–20 nm) during isothermal cycling. The reduction of MgFe
3+
AlO
x
starts at 400 °C and proceeds
via
partial reduction to MgFe
2+
AlO
x
. Prolonged cycling and higher temperatures (>750 °C) lead to deeper reduction and segregation of Fe from the spinel structure. Very high stability and CO yield from CO
2
conversion are found in Mg–Fe–Al–O materials with 10 wt% Fe
2
O
3
,
i.e.
the lowest oxygen storage capacity among the tested samples. Compared to 10 wt% Fe
2
O
3
supported on Al
2
O
3
or MgO, the CO yield of the 10 wt% Fe
2
O
3
–MgFeAlO
x
spinel is ten times higher.</description><identifier>ISSN: 2050-7488</identifier><identifier>EISSN: 2050-7496</identifier><identifier>DOI: 10.1039/C5TA02289D</identifier><language>eng</language><ispartof>Journal of materials chemistry. A, Materials for energy and sustainability, 2015, Vol.3 (31), p.16251-16262</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c76D-e2f16ac94961a6225777250a061c5efb27c645f3faf058bfabcc35fb15d85e5a3</citedby><cites>FETCH-LOGICAL-c76D-e2f16ac94961a6225777250a061c5efb27c645f3faf058bfabcc35fb15d85e5a3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,4024,27923,27924,27925</link.rule.ids></links><search><creatorcontrib>Dharanipragada, N. V. R. Aditya</creatorcontrib><creatorcontrib>Buelens, Lukas C.</creatorcontrib><creatorcontrib>Poelman, Hilde</creatorcontrib><creatorcontrib>De Grave, Eddy</creatorcontrib><creatorcontrib>Galvita, Vladimir V.</creatorcontrib><creatorcontrib>Marin, Guy B.</creatorcontrib><title>Mg–Fe–Al–O for advanced CO 2 to CO conversion: carbon monoxide yield vs. oxygen storage capacity</title><title>Journal of materials chemistry. A, Materials for energy and sustainability</title><description>A detailed study of new oxygen carrier materials, Mg–Fe–Al–O, with various loadings of iron oxide (10–100 wt% Fe
2
O
3
) is carried out in order to investigate the relationship between material transformation, stability and CO yield from CO
2
conversion.
In situ
XRD during H
2
-TPR, CO
2
-TPO and isothermal chemical looping cycles as well as Mössbauer spectroscopy are employed. All samples show the formation of a spinel phase, MgFeAlO
x
. High loadings of iron oxide (50–90 wt%) lead to both spinel and Fe
2
O
3
phases and show deactivation in cycling as a result of Fe
2
O
3
particle sintering. During the reduction, reoxidation and cycling of the spinel MgFeAlO
x
phase, only limited sintering occurs. This is evidenced by the stable spinel crystallite sizes (∼15–20 nm) during isothermal cycling. The reduction of MgFe
3+
AlO
x
starts at 400 °C and proceeds
via
partial reduction to MgFe
2+
AlO
x
. Prolonged cycling and higher temperatures (>750 °C) lead to deeper reduction and segregation of Fe from the spinel structure. Very high stability and CO yield from CO
2
conversion are found in Mg–Fe–Al–O materials with 10 wt% Fe
2
O
3
,
i.e.
the lowest oxygen storage capacity among the tested samples. Compared to 10 wt% Fe
2
O
3
supported on Al
2
O
3
or MgO, the CO yield of the 10 wt% Fe
2
O
3
–MgFeAlO
x
spinel is ten times higher.</description><issn>2050-7488</issn><issn>2050-7496</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNpFUMFKxDAUDKLgsu7FL8hZ6JqkmzTxVrruKqz00nt5TZNS6TZLUsr25j_4h36JXRSdw8wchmEYhO4pWVMSq8eMFylhTKrtFVowwkmUbJS4_vNS3qJVCO9khiREKLVA9q35-vjcmZnSbqYcW-cx1CP02tQ4yzHDg7uodv1ofGhd_4Q1-Mr1-Oh6d25rg6fWdDUewxq789SYHofBeWjMHDyBbofpDt1Y6IJZ_eoSFbvnInuJDvn-NUsPkU7ENjLMUgFazaspCMZ4kiSMEyCCam5sxRItNtzGFizhsrJQaR1zW1FeS244xEv08FOrvQvBG1uefHsEP5WUlJePyv-P4m_MYluk</recordid><startdate>2015</startdate><enddate>2015</enddate><creator>Dharanipragada, N. V. R. Aditya</creator><creator>Buelens, Lukas C.</creator><creator>Poelman, Hilde</creator><creator>De Grave, Eddy</creator><creator>Galvita, Vladimir V.</creator><creator>Marin, Guy B.</creator><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>2015</creationdate><title>Mg–Fe–Al–O for advanced CO 2 to CO conversion: carbon monoxide yield vs. oxygen storage capacity</title><author>Dharanipragada, N. V. R. Aditya ; Buelens, Lukas C. ; Poelman, Hilde ; De Grave, Eddy ; Galvita, Vladimir V. ; Marin, Guy B.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c76D-e2f16ac94961a6225777250a061c5efb27c645f3faf058bfabcc35fb15d85e5a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Dharanipragada, N. V. R. Aditya</creatorcontrib><creatorcontrib>Buelens, Lukas C.</creatorcontrib><creatorcontrib>Poelman, Hilde</creatorcontrib><creatorcontrib>De Grave, Eddy</creatorcontrib><creatorcontrib>Galvita, Vladimir V.</creatorcontrib><creatorcontrib>Marin, Guy B.</creatorcontrib><collection>CrossRef</collection><jtitle>Journal of materials chemistry. A, Materials for energy and sustainability</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Dharanipragada, N. V. R. Aditya</au><au>Buelens, Lukas C.</au><au>Poelman, Hilde</au><au>De Grave, Eddy</au><au>Galvita, Vladimir V.</au><au>Marin, Guy B.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Mg–Fe–Al–O for advanced CO 2 to CO conversion: carbon monoxide yield vs. oxygen storage capacity</atitle><jtitle>Journal of materials chemistry. A, Materials for energy and sustainability</jtitle><date>2015</date><risdate>2015</risdate><volume>3</volume><issue>31</issue><spage>16251</spage><epage>16262</epage><pages>16251-16262</pages><issn>2050-7488</issn><eissn>2050-7496</eissn><abstract>A detailed study of new oxygen carrier materials, Mg–Fe–Al–O, with various loadings of iron oxide (10–100 wt% Fe
2
O
3
) is carried out in order to investigate the relationship between material transformation, stability and CO yield from CO
2
conversion.
In situ
XRD during H
2
-TPR, CO
2
-TPO and isothermal chemical looping cycles as well as Mössbauer spectroscopy are employed. All samples show the formation of a spinel phase, MgFeAlO
x
. High loadings of iron oxide (50–90 wt%) lead to both spinel and Fe
2
O
3
phases and show deactivation in cycling as a result of Fe
2
O
3
particle sintering. During the reduction, reoxidation and cycling of the spinel MgFeAlO
x
phase, only limited sintering occurs. This is evidenced by the stable spinel crystallite sizes (∼15–20 nm) during isothermal cycling. The reduction of MgFe
3+
AlO
x
starts at 400 °C and proceeds
via
partial reduction to MgFe
2+
AlO
x
. Prolonged cycling and higher temperatures (>750 °C) lead to deeper reduction and segregation of Fe from the spinel structure. Very high stability and CO yield from CO
2
conversion are found in Mg–Fe–Al–O materials with 10 wt% Fe
2
O
3
,
i.e.
the lowest oxygen storage capacity among the tested samples. Compared to 10 wt% Fe
2
O
3
supported on Al
2
O
3
or MgO, the CO yield of the 10 wt% Fe
2
O
3
–MgFeAlO
x
spinel is ten times higher.</abstract><doi>10.1039/C5TA02289D</doi><tpages>12</tpages></addata></record> |
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| identifier | ISSN: 2050-7488 |
| ispartof | Journal of materials chemistry. A, Materials for energy and sustainability, 2015, Vol.3 (31), p.16251-16262 |
| issn | 2050-7488 2050-7496 |
| language | eng |
| recordid | cdi_crossref_primary_10_1039_C5TA02289D |
| source | Royal Society Of Chemistry Journals 2008-; Alma/SFX Local Collection |
| title | Mg–Fe–Al–O for advanced CO 2 to CO conversion: carbon monoxide yield vs. oxygen storage capacity |
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