Towards sustainable energy. Photocatalysis of Cr-doped TiO2: 4. Electrochemical coupling
The present chain of five papers considers the concept of solar-to-chemical energy conversion using TiO 2 -based semiconductors. The series reports the effect of chromium on the key performance-related properties of polycrystalline TiO 2 (rutile), including electronic structure, photocatalytic activ...
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| Veröffentlicht in: | Ionics 2018-03, Vol.24 (3), p.873-881 |
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| creator | Rahman, Kazi A. Atanacio, A. Ionescu, M. Davis, J. Bak, T. Nowotny, J. |
| description | The present chain of five papers considers the concept of solar-to-chemical energy conversion using TiO
2
-based semiconductors. The series reports the effect of chromium on the key performance-related properties of polycrystalline TiO
2
(rutile), including electronic structure, photocatalytic activity, intrinsic defect disorder, electrochemical coupling and surface versus bulk properties. This work reports the effect of photoelectrochemical coupling of both pure and Cr-doped TiO
2
on photocatalytic partial water oxidation. The couples are annealed in oxidising and reducing conditions, at
p
(O
2
) = 10
5
Pa and
p
(O
2
) = 10
−10
Pa, respectively. The performance of the coupled system may be enhanced, or retarded, by the electrical potential barrier that is formed between the couple components as a result of the difference in Fermi levels. In this work, we show that the potential barrier results in the effect of synergy when the charge transport within the couple components is high enough. This is the case for the couples annealed in reducing conditions. |
| doi_str_mv | 10.1007/s11581-017-2305-5 |
| format | Article |
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2
-based semiconductors. The series reports the effect of chromium on the key performance-related properties of polycrystalline TiO
2
(rutile), including electronic structure, photocatalytic activity, intrinsic defect disorder, electrochemical coupling and surface versus bulk properties. This work reports the effect of photoelectrochemical coupling of both pure and Cr-doped TiO
2
on photocatalytic partial water oxidation. The couples are annealed in oxidising and reducing conditions, at
p
(O
2
) = 10
5
Pa and
p
(O
2
) = 10
−10
Pa, respectively. The performance of the coupled system may be enhanced, or retarded, by the electrical potential barrier that is formed between the couple components as a result of the difference in Fermi levels. In this work, we show that the potential barrier results in the effect of synergy when the charge transport within the couple components is high enough. This is the case for the couples annealed in reducing conditions.</description><identifier>ISSN: 0947-7047</identifier><identifier>EISSN: 1862-0760</identifier><identifier>DOI: 10.1007/s11581-017-2305-5</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Annealing ; Catalytic activity ; Charge transport ; Chemical energy ; Chemistry ; Chemistry and Materials Science ; Chromium ; Condensed Matter Physics ; Couples ; Coupling ; Electrochemistry ; Electronic structure ; Energy consumption ; Energy conversion ; Energy Storage ; Optical and Electronic Materials ; Original Paper ; Oxidation ; Photocatalysis ; Potential barriers ; Renewable and Green Energy ; Titanium dioxide ; Titanium oxides</subject><ispartof>Ionics, 2018-03, Vol.24 (3), p.873-881</ispartof><rights>Springer-Verlag GmbH Germany 2017</rights><rights>Copyright Springer Science & Business Media 2018</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c316t-6dfb513bf4fcd8e85e5c9d56ed5f44bee45302c04ca7858ed20aca8e161982593</citedby><cites>FETCH-LOGICAL-c316t-6dfb513bf4fcd8e85e5c9d56ed5f44bee45302c04ca7858ed20aca8e161982593</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s11581-017-2305-5$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s11581-017-2305-5$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27923,27924,41487,42556,51318</link.rule.ids></links><search><creatorcontrib>Rahman, Kazi A.</creatorcontrib><creatorcontrib>Atanacio, A.</creatorcontrib><creatorcontrib>Ionescu, M.</creatorcontrib><creatorcontrib>Davis, J.</creatorcontrib><creatorcontrib>Bak, T.</creatorcontrib><creatorcontrib>Nowotny, J.</creatorcontrib><title>Towards sustainable energy. Photocatalysis of Cr-doped TiO2: 4. Electrochemical coupling</title><title>Ionics</title><addtitle>Ionics</addtitle><description>The present chain of five papers considers the concept of solar-to-chemical energy conversion using TiO
2
-based semiconductors. The series reports the effect of chromium on the key performance-related properties of polycrystalline TiO
2
(rutile), including electronic structure, photocatalytic activity, intrinsic defect disorder, electrochemical coupling and surface versus bulk properties. This work reports the effect of photoelectrochemical coupling of both pure and Cr-doped TiO
2
on photocatalytic partial water oxidation. The couples are annealed in oxidising and reducing conditions, at
p
(O
2
) = 10
5
Pa and
p
(O
2
) = 10
−10
Pa, respectively. The performance of the coupled system may be enhanced, or retarded, by the electrical potential barrier that is formed between the couple components as a result of the difference in Fermi levels. In this work, we show that the potential barrier results in the effect of synergy when the charge transport within the couple components is high enough. This is the case for the couples annealed in reducing conditions.</description><subject>Annealing</subject><subject>Catalytic activity</subject><subject>Charge transport</subject><subject>Chemical energy</subject><subject>Chemistry</subject><subject>Chemistry and Materials Science</subject><subject>Chromium</subject><subject>Condensed Matter Physics</subject><subject>Couples</subject><subject>Coupling</subject><subject>Electrochemistry</subject><subject>Electronic structure</subject><subject>Energy consumption</subject><subject>Energy conversion</subject><subject>Energy Storage</subject><subject>Optical and Electronic Materials</subject><subject>Original Paper</subject><subject>Oxidation</subject><subject>Photocatalysis</subject><subject>Potential barriers</subject><subject>Renewable and Green Energy</subject><subject>Titanium dioxide</subject><subject>Titanium oxides</subject><issn>0947-7047</issn><issn>1862-0760</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNp1kE9LwzAYh4MoOKcfwFvAc-abNGlTbzL8B4N5mOAtpOnbraNratIi-_Z2VPDk6b08z--Fh5BbDgsOkN1HzpXmDHjGRAKKqTMy4zoVDLIUzskMcpmxDGR2Sa5i3AOkKRfZjHxu_LcNZaRxiL2tW1s0SLHFsD0u6PvO997Z3jbHWEfqK7oMrPQdlnRTr8UDlQv61KDrg3c7PNTONtT5oWvqdntNLirbRLz5vXPy8fy0Wb6y1frlbfm4Yi7hac_SsioUT4pKVq7UqBUql5cqxVJVUhaIUiUgHEhnM600lgKssxp5ynMtVJ7Myd202wX_NWDszd4PoR1fGgGgZaIlyJHiE-WCjzFgZbpQH2w4Gg7mFNBMAc0Y0JwCGjU6YnLiyLZbDH_L_0s_41xzHw</recordid><startdate>20180301</startdate><enddate>20180301</enddate><creator>Rahman, Kazi A.</creator><creator>Atanacio, A.</creator><creator>Ionescu, M.</creator><creator>Davis, J.</creator><creator>Bak, T.</creator><creator>Nowotny, J.</creator><general>Springer Berlin Heidelberg</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20180301</creationdate><title>Towards sustainable energy. Photocatalysis of Cr-doped TiO2: 4. Electrochemical coupling</title><author>Rahman, Kazi A. ; Atanacio, A. ; Ionescu, M. ; Davis, J. ; Bak, T. ; Nowotny, J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c316t-6dfb513bf4fcd8e85e5c9d56ed5f44bee45302c04ca7858ed20aca8e161982593</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Annealing</topic><topic>Catalytic activity</topic><topic>Charge transport</topic><topic>Chemical energy</topic><topic>Chemistry</topic><topic>Chemistry and Materials Science</topic><topic>Chromium</topic><topic>Condensed Matter Physics</topic><topic>Couples</topic><topic>Coupling</topic><topic>Electrochemistry</topic><topic>Electronic structure</topic><topic>Energy consumption</topic><topic>Energy conversion</topic><topic>Energy Storage</topic><topic>Optical and Electronic Materials</topic><topic>Original Paper</topic><topic>Oxidation</topic><topic>Photocatalysis</topic><topic>Potential barriers</topic><topic>Renewable and Green Energy</topic><topic>Titanium dioxide</topic><topic>Titanium oxides</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Rahman, Kazi A.</creatorcontrib><creatorcontrib>Atanacio, A.</creatorcontrib><creatorcontrib>Ionescu, M.</creatorcontrib><creatorcontrib>Davis, J.</creatorcontrib><creatorcontrib>Bak, T.</creatorcontrib><creatorcontrib>Nowotny, J.</creatorcontrib><collection>CrossRef</collection><jtitle>Ionics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Rahman, Kazi A.</au><au>Atanacio, A.</au><au>Ionescu, M.</au><au>Davis, J.</au><au>Bak, T.</au><au>Nowotny, J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Towards sustainable energy. Photocatalysis of Cr-doped TiO2: 4. Electrochemical coupling</atitle><jtitle>Ionics</jtitle><stitle>Ionics</stitle><date>2018-03-01</date><risdate>2018</risdate><volume>24</volume><issue>3</issue><spage>873</spage><epage>881</epage><pages>873-881</pages><issn>0947-7047</issn><eissn>1862-0760</eissn><abstract>The present chain of five papers considers the concept of solar-to-chemical energy conversion using TiO
2
-based semiconductors. The series reports the effect of chromium on the key performance-related properties of polycrystalline TiO
2
(rutile), including electronic structure, photocatalytic activity, intrinsic defect disorder, electrochemical coupling and surface versus bulk properties. This work reports the effect of photoelectrochemical coupling of both pure and Cr-doped TiO
2
on photocatalytic partial water oxidation. The couples are annealed in oxidising and reducing conditions, at
p
(O
2
) = 10
5
Pa and
p
(O
2
) = 10
−10
Pa, respectively. The performance of the coupled system may be enhanced, or retarded, by the electrical potential barrier that is formed between the couple components as a result of the difference in Fermi levels. In this work, we show that the potential barrier results in the effect of synergy when the charge transport within the couple components is high enough. This is the case for the couples annealed in reducing conditions.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><doi>10.1007/s11581-017-2305-5</doi><tpages>9</tpages></addata></record> |
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| ispartof | Ionics, 2018-03, Vol.24 (3), p.873-881 |
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| language | eng |
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| subjects | Annealing Catalytic activity Charge transport Chemical energy Chemistry Chemistry and Materials Science Chromium Condensed Matter Physics Couples Coupling Electrochemistry Electronic structure Energy consumption Energy conversion Energy Storage Optical and Electronic Materials Original Paper Oxidation Photocatalysis Potential barriers Renewable and Green Energy Titanium dioxide Titanium oxides |
| title | Towards sustainable energy. Photocatalysis of Cr-doped TiO2: 4. Electrochemical coupling |
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