Hydrothermal stability of CeO2-Al2O3 composites, a structural study and oxygen storage capacitiesElectronic supplementary information (ESI) available: Details of the calculation of oxygen storage capacity. See DOI: 10.1039/c5ra15731e
A series of CeO 2 -Al 2 O 3 composites with different Ce content were prepared. The uniformity of the CeO 2 dispersion was confirmed using H 2 -TPR and HR-TEM. Two aging treatments were conducted, and the CeO 2 -Al 2 O 3 composites show superior hydrothermal stability. The sintering of CeO 2 and Al...
Gespeichert in:
| Hauptverfasser: | , , , , , |
|---|---|
| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 8938 |
|---|---|
| container_issue | 99 |
| container_start_page | 8933 |
| container_title | |
| container_volume | 5 |
| creator | Wei, Guangxi Shen, Meiqing Li, Hang Wang, Hui Wang, Jianqiang Wang, Jun |
| description | A series of CeO
2
-Al
2
O
3
composites with different Ce content were prepared. The uniformity of the CeO
2
dispersion was confirmed using H
2
-TPR and HR-TEM. Two aging treatments were conducted, and the CeO
2
-Al
2
O
3
composites show superior hydrothermal stability. The sintering of CeO
2
and Al
2
O
3
are independent of each other based on XRD and HR-TEM results. On the other hand, the dynamic oxygen storage capacity (DOSC) is mostly activated after 20 h of aging at 750 °C, and deactivated after 10 h of aging at 1050 °C. Combining the results of structural and DOSC studies, the interaction between CeO
2
and Al
2
O
3
can be divided into two parts, (1) a chemical interaction which negatively impacts the DOSC, and (2) a spatial limitation which benefits the sample stability. The former interaction is eliminated after hydrothermal aging at 750 °C, while the later one exists even after hydrothermal aging at 1050 °C.
A series of CeO
2
-Al
2
O
3
composites with different Ce content were prepared. |
| doi_str_mv | 10.1039/c5ra15731e |
| format | Article |
| fullrecord | <record><control><sourceid>rsc</sourceid><recordid>TN_cdi_rsc_primary_c5ra15731e</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>c5ra15731e</sourcerecordid><originalsourceid>FETCH-rsc_primary_c5ra15731e3</originalsourceid><addsrcrecordid>eNqFUE1LAzEQDYJg0V68C-NNwa374a60N2lX2tMe6n2ZZmdrJJuEJCvmJ_svjB_gQdG5zPDem3mPYew0S2dZWsyveWkxK2-LjA7YJE9vqiRPq_kRmzr3lMaqyiyvsgl7XYfOav9IdkAJzuNOSOED6B6W1OTJncybArgejHbCk7sCjCo7cj_aj4WxC4CqA_0S9qQioC3uCTga5MILcrUk7q1WgoMbjZE0kPJoAwjV6-jqhVZwUW83l4DPKCTuJC1gRT7O7j1HDBfPST7KT22EfjcLM9gSwarZLODnH07YYY_S0fSrH7Oz-_phuU6s462xYoiZ2m958T9__hffmq4v3gAP9YDM</addsrcrecordid><sourcetype>Enrichment Source</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Hydrothermal stability of CeO2-Al2O3 composites, a structural study and oxygen storage capacitiesElectronic supplementary information (ESI) available: Details of the calculation of oxygen storage capacity. See DOI: 10.1039/c5ra15731e</title><source>Royal Society Of Chemistry Journals 2008-</source><creator>Wei, Guangxi ; Shen, Meiqing ; Li, Hang ; Wang, Hui ; Wang, Jianqiang ; Wang, Jun</creator><creatorcontrib>Wei, Guangxi ; Shen, Meiqing ; Li, Hang ; Wang, Hui ; Wang, Jianqiang ; Wang, Jun</creatorcontrib><description>A series of CeO
2
-Al
2
O
3
composites with different Ce content were prepared. The uniformity of the CeO
2
dispersion was confirmed using H
2
-TPR and HR-TEM. Two aging treatments were conducted, and the CeO
2
-Al
2
O
3
composites show superior hydrothermal stability. The sintering of CeO
2
and Al
2
O
3
are independent of each other based on XRD and HR-TEM results. On the other hand, the dynamic oxygen storage capacity (DOSC) is mostly activated after 20 h of aging at 750 °C, and deactivated after 10 h of aging at 1050 °C. Combining the results of structural and DOSC studies, the interaction between CeO
2
and Al
2
O
3
can be divided into two parts, (1) a chemical interaction which negatively impacts the DOSC, and (2) a spatial limitation which benefits the sample stability. The former interaction is eliminated after hydrothermal aging at 750 °C, while the later one exists even after hydrothermal aging at 1050 °C.
A series of CeO
2
-Al
2
O
3
composites with different Ce content were prepared.</description><identifier>EISSN: 2046-2069</identifier><identifier>DOI: 10.1039/c5ra15731e</identifier><language>eng</language><creationdate>2015-09</creationdate><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>314,776,780,27901,27902</link.rule.ids></links><search><creatorcontrib>Wei, Guangxi</creatorcontrib><creatorcontrib>Shen, Meiqing</creatorcontrib><creatorcontrib>Li, Hang</creatorcontrib><creatorcontrib>Wang, Hui</creatorcontrib><creatorcontrib>Wang, Jianqiang</creatorcontrib><creatorcontrib>Wang, Jun</creatorcontrib><title>Hydrothermal stability of CeO2-Al2O3 composites, a structural study and oxygen storage capacitiesElectronic supplementary information (ESI) available: Details of the calculation of oxygen storage capacity. See DOI: 10.1039/c5ra15731e</title><description>A series of CeO
2
-Al
2
O
3
composites with different Ce content were prepared. The uniformity of the CeO
2
dispersion was confirmed using H
2
-TPR and HR-TEM. Two aging treatments were conducted, and the CeO
2
-Al
2
O
3
composites show superior hydrothermal stability. The sintering of CeO
2
and Al
2
O
3
are independent of each other based on XRD and HR-TEM results. On the other hand, the dynamic oxygen storage capacity (DOSC) is mostly activated after 20 h of aging at 750 °C, and deactivated after 10 h of aging at 1050 °C. Combining the results of structural and DOSC studies, the interaction between CeO
2
and Al
2
O
3
can be divided into two parts, (1) a chemical interaction which negatively impacts the DOSC, and (2) a spatial limitation which benefits the sample stability. The former interaction is eliminated after hydrothermal aging at 750 °C, while the later one exists even after hydrothermal aging at 1050 °C.
A series of CeO
2
-Al
2
O
3
composites with different Ce content were prepared.</description><issn>2046-2069</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><sourceid/><recordid>eNqFUE1LAzEQDYJg0V68C-NNwa374a60N2lX2tMe6n2ZZmdrJJuEJCvmJ_svjB_gQdG5zPDem3mPYew0S2dZWsyveWkxK2-LjA7YJE9vqiRPq_kRmzr3lMaqyiyvsgl7XYfOav9IdkAJzuNOSOED6B6W1OTJncybArgejHbCk7sCjCo7cj_aj4WxC4CqA_0S9qQioC3uCTga5MILcrUk7q1WgoMbjZE0kPJoAwjV6-jqhVZwUW83l4DPKCTuJC1gRT7O7j1HDBfPST7KT22EfjcLM9gSwarZLODnH07YYY_S0fSrH7Oz-_phuU6s462xYoiZ2m958T9__hffmq4v3gAP9YDM</recordid><startdate>20150923</startdate><enddate>20150923</enddate><creator>Wei, Guangxi</creator><creator>Shen, Meiqing</creator><creator>Li, Hang</creator><creator>Wang, Hui</creator><creator>Wang, Jianqiang</creator><creator>Wang, Jun</creator><scope/></search><sort><creationdate>20150923</creationdate><title>Hydrothermal stability of CeO2-Al2O3 composites, a structural study and oxygen storage capacitiesElectronic supplementary information (ESI) available: Details of the calculation of oxygen storage capacity. See DOI: 10.1039/c5ra15731e</title><author>Wei, Guangxi ; Shen, Meiqing ; Li, Hang ; Wang, Hui ; Wang, Jianqiang ; Wang, Jun</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-rsc_primary_c5ra15731e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wei, Guangxi</creatorcontrib><creatorcontrib>Shen, Meiqing</creatorcontrib><creatorcontrib>Li, Hang</creatorcontrib><creatorcontrib>Wang, Hui</creatorcontrib><creatorcontrib>Wang, Jianqiang</creatorcontrib><creatorcontrib>Wang, Jun</creatorcontrib></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wei, Guangxi</au><au>Shen, Meiqing</au><au>Li, Hang</au><au>Wang, Hui</au><au>Wang, Jianqiang</au><au>Wang, Jun</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Hydrothermal stability of CeO2-Al2O3 composites, a structural study and oxygen storage capacitiesElectronic supplementary information (ESI) available: Details of the calculation of oxygen storage capacity. See DOI: 10.1039/c5ra15731e</atitle><date>2015-09-23</date><risdate>2015</risdate><volume>5</volume><issue>99</issue><spage>8933</spage><epage>8938</epage><pages>8933-8938</pages><eissn>2046-2069</eissn><abstract>A series of CeO
2
-Al
2
O
3
composites with different Ce content were prepared. The uniformity of the CeO
2
dispersion was confirmed using H
2
-TPR and HR-TEM. Two aging treatments were conducted, and the CeO
2
-Al
2
O
3
composites show superior hydrothermal stability. The sintering of CeO
2
and Al
2
O
3
are independent of each other based on XRD and HR-TEM results. On the other hand, the dynamic oxygen storage capacity (DOSC) is mostly activated after 20 h of aging at 750 °C, and deactivated after 10 h of aging at 1050 °C. Combining the results of structural and DOSC studies, the interaction between CeO
2
and Al
2
O
3
can be divided into two parts, (1) a chemical interaction which negatively impacts the DOSC, and (2) a spatial limitation which benefits the sample stability. The former interaction is eliminated after hydrothermal aging at 750 °C, while the later one exists even after hydrothermal aging at 1050 °C.
A series of CeO
2
-Al
2
O
3
composites with different Ce content were prepared.</abstract><doi>10.1039/c5ra15731e</doi><tpages>6</tpages></addata></record> |
| fulltext | fulltext |
| identifier | EISSN: 2046-2069 |
| ispartof | |
| issn | 2046-2069 |
| language | eng |
| recordid | cdi_rsc_primary_c5ra15731e |
| source | Royal Society Of Chemistry Journals 2008- |
| title | Hydrothermal stability of CeO2-Al2O3 composites, a structural study and oxygen storage capacitiesElectronic supplementary information (ESI) available: Details of the calculation of oxygen storage capacity. See DOI: 10.1039/c5ra15731e |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-01T17%3A36%3A07IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-rsc&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Hydrothermal%20stability%20of%20CeO2-Al2O3%20composites,%20a%20structural%20study%20and%20oxygen%20storage%20capacitiesElectronic%20supplementary%20information%20(ESI)%20available:%20Details%20of%20the%20calculation%20of%20oxygen%20storage%20capacity.%20See%20DOI:%2010.1039/c5ra15731e&rft.au=Wei,%20Guangxi&rft.date=2015-09-23&rft.volume=5&rft.issue=99&rft.spage=8933&rft.epage=8938&rft.pages=8933-8938&rft.eissn=2046-2069&rft_id=info:doi/10.1039/c5ra15731e&rft_dat=%3Crsc%3Ec5ra15731e%3C/rsc%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true |