The in situ formation of defective CoOOH catalysts from semi-oxidized Co for alkaline oxygen evolution reaction
Electrochemical water splitting based on Co oxide electrocatalysts provides a promising means for renewable hydrogen production from water. Identifying the structure evolution and real-time active structure of Co-based electrocatalysts under operational conditions is crucial for understanding the OE...
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| Veröffentlicht in: | Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2022-09, Vol.10 (37), p.20011-20017 |
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| container_title | Journal of materials chemistry. A, Materials for energy and sustainability |
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| creator | Wang, Lan Pan, Ya Wu, Dan Liu, Xiaokang Cao, Linlin Zhang, Wei Chen, Honglei Liu, Tong Liu, Dong Chen, Tao Ding, Tao Wang, Yi Ding, Chenglong Kang, Caitao Li, Changli He, Jingfu Yao, Tao |
| description | Electrochemical water splitting based on Co oxide electrocatalysts provides a promising means for renewable hydrogen production from water. Identifying the structure evolution and real-time active structure of Co-based electrocatalysts under operational conditions is crucial for understanding the OER mechanism and rational design of efficient catalysts. Here, we systematically synthesized three types of Co-based precatalysts, including Co/graphene oxide (GO), Co–CoO/GO and Co
3
O
4
/GO, to clarify the critical effects of the precatalyst structure for OER. The electrochemical test results confirm that the Co–CoO/GO precatalyst shows a lower overpotential compared to Co/GO and Co
3
O
4
/GO precatalysts and commercial RuO
2
/C. A thorough
in situ
analysis by XAFS revealed that the Co–CoO/GO precatalysts are oxidized and self-assembled into CoOOH during water oxidation and possess a much higher O vacancy density compared with the CoOOH derived from Co/GO, while the Co
3
O
4
/GO precatalyst maintains its structure during operation. This strategy of
in situ
creation of defects in CoOOH provides a guideline for the rational design of future catalysis systems. |
| doi_str_mv | 10.1039/D2TA02989H |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_journals_2718536786</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2718536786</sourcerecordid><originalsourceid>FETCH-LOGICAL-c259t-7031a5fd04aa4e72466b84337258ceda462f7c17a9bbf4de176fc32587eddaed3</originalsourceid><addsrcrecordid>eNpFkEtLAzEUhYMoWGo3_oKAO2E0k8zksSz1UaHQTV0PaXKjqTOTmsyU1l_v1IrezT1wv3sOHISuc3KXE6buH-hqSqiSan6GRpSUJBOF4ud_WspLNElpQ4aRhHClRiis3gH7Fiff9diF2OjOhxYHhy04MJ3fAZ6F5XKOje50fUhdwi6GBidofBb23vovsANyfMa6_tC1bwGH_eENWgy7UPc_hhG0OYordOF0nWDyu8fo9elxNZtni-Xzy2y6yAwtVZcJwnJdOksKrQsQtOB8LQvGBC2lAasLTp0wudBqvXaFhVxwZ9hwFGCtBsvG6Obku43hs4fUVZvQx3aIrKjIZcm4kHygbk-UiSGlCK7aRt_oeKhyUh07rf47Zd_lM2pg</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2718536786</pqid></control><display><type>article</type><title>The in situ formation of defective CoOOH catalysts from semi-oxidized Co for alkaline oxygen evolution reaction</title><source>Royal Society Of Chemistry Journals 2008-</source><creator>Wang, Lan ; Pan, Ya ; Wu, Dan ; Liu, Xiaokang ; Cao, Linlin ; Zhang, Wei ; Chen, Honglei ; Liu, Tong ; Liu, Dong ; Chen, Tao ; Ding, Tao ; Wang, Yi ; Ding, Chenglong ; Kang, Caitao ; Li, Changli ; He, Jingfu ; Yao, Tao</creator><creatorcontrib>Wang, Lan ; Pan, Ya ; Wu, Dan ; Liu, Xiaokang ; Cao, Linlin ; Zhang, Wei ; Chen, Honglei ; Liu, Tong ; Liu, Dong ; Chen, Tao ; Ding, Tao ; Wang, Yi ; Ding, Chenglong ; Kang, Caitao ; Li, Changli ; He, Jingfu ; Yao, Tao</creatorcontrib><description>Electrochemical water splitting based on Co oxide electrocatalysts provides a promising means for renewable hydrogen production from water. Identifying the structure evolution and real-time active structure of Co-based electrocatalysts under operational conditions is crucial for understanding the OER mechanism and rational design of efficient catalysts. Here, we systematically synthesized three types of Co-based precatalysts, including Co/graphene oxide (GO), Co–CoO/GO and Co
3
O
4
/GO, to clarify the critical effects of the precatalyst structure for OER. The electrochemical test results confirm that the Co–CoO/GO precatalyst shows a lower overpotential compared to Co/GO and Co
3
O
4
/GO precatalysts and commercial RuO
2
/C. A thorough
in situ
analysis by XAFS revealed that the Co–CoO/GO precatalysts are oxidized and self-assembled into CoOOH during water oxidation and possess a much higher O vacancy density compared with the CoOOH derived from Co/GO, while the Co
3
O
4
/GO precatalyst maintains its structure during operation. This strategy of
in situ
creation of defects in CoOOH provides a guideline for the rational design of future catalysis systems.</description><identifier>ISSN: 2050-7488</identifier><identifier>EISSN: 2050-7496</identifier><identifier>DOI: 10.1039/D2TA02989H</identifier><language>eng</language><publisher>Cambridge: Royal Society of Chemistry</publisher><subject>Catalysis ; Catalysts ; Chemical synthesis ; Cobalt oxides ; Design defects ; Electrocatalysts ; Electrochemistry ; Graphene ; Hydrogen production ; Oxidation ; Oxygen evolution reactions ; Self-assembly ; Water splitting</subject><ispartof>Journal of materials chemistry. A, Materials for energy and sustainability, 2022-09, Vol.10 (37), p.20011-20017</ispartof><rights>Copyright Royal Society of Chemistry 2022</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c259t-7031a5fd04aa4e72466b84337258ceda462f7c17a9bbf4de176fc32587eddaed3</citedby><cites>FETCH-LOGICAL-c259t-7031a5fd04aa4e72466b84337258ceda462f7c17a9bbf4de176fc32587eddaed3</cites><orcidid>0000-0003-1787-2465 ; 0000-0002-9474-1947 ; 0000-0001-5149-7318 ; 0000-0001-8699-8294 ; 0000-0001-8100-8693 ; 0000-0001-9143-0679 ; 0000-0002-7639-0151</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Wang, Lan</creatorcontrib><creatorcontrib>Pan, Ya</creatorcontrib><creatorcontrib>Wu, Dan</creatorcontrib><creatorcontrib>Liu, Xiaokang</creatorcontrib><creatorcontrib>Cao, Linlin</creatorcontrib><creatorcontrib>Zhang, Wei</creatorcontrib><creatorcontrib>Chen, Honglei</creatorcontrib><creatorcontrib>Liu, Tong</creatorcontrib><creatorcontrib>Liu, Dong</creatorcontrib><creatorcontrib>Chen, Tao</creatorcontrib><creatorcontrib>Ding, Tao</creatorcontrib><creatorcontrib>Wang, Yi</creatorcontrib><creatorcontrib>Ding, Chenglong</creatorcontrib><creatorcontrib>Kang, Caitao</creatorcontrib><creatorcontrib>Li, Changli</creatorcontrib><creatorcontrib>He, Jingfu</creatorcontrib><creatorcontrib>Yao, Tao</creatorcontrib><title>The in situ formation of defective CoOOH catalysts from semi-oxidized Co for alkaline oxygen evolution reaction</title><title>Journal of materials chemistry. A, Materials for energy and sustainability</title><description>Electrochemical water splitting based on Co oxide electrocatalysts provides a promising means for renewable hydrogen production from water. Identifying the structure evolution and real-time active structure of Co-based electrocatalysts under operational conditions is crucial for understanding the OER mechanism and rational design of efficient catalysts. Here, we systematically synthesized three types of Co-based precatalysts, including Co/graphene oxide (GO), Co–CoO/GO and Co
3
O
4
/GO, to clarify the critical effects of the precatalyst structure for OER. The electrochemical test results confirm that the Co–CoO/GO precatalyst shows a lower overpotential compared to Co/GO and Co
3
O
4
/GO precatalysts and commercial RuO
2
/C. A thorough
in situ
analysis by XAFS revealed that the Co–CoO/GO precatalysts are oxidized and self-assembled into CoOOH during water oxidation and possess a much higher O vacancy density compared with the CoOOH derived from Co/GO, while the Co
3
O
4
/GO precatalyst maintains its structure during operation. This strategy of
in situ
creation of defects in CoOOH provides a guideline for the rational design of future catalysis systems.</description><subject>Catalysis</subject><subject>Catalysts</subject><subject>Chemical synthesis</subject><subject>Cobalt oxides</subject><subject>Design defects</subject><subject>Electrocatalysts</subject><subject>Electrochemistry</subject><subject>Graphene</subject><subject>Hydrogen production</subject><subject>Oxidation</subject><subject>Oxygen evolution reactions</subject><subject>Self-assembly</subject><subject>Water splitting</subject><issn>2050-7488</issn><issn>2050-7496</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNpFkEtLAzEUhYMoWGo3_oKAO2E0k8zksSz1UaHQTV0PaXKjqTOTmsyU1l_v1IrezT1wv3sOHISuc3KXE6buH-hqSqiSan6GRpSUJBOF4ud_WspLNElpQ4aRhHClRiis3gH7Fiff9diF2OjOhxYHhy04MJ3fAZ6F5XKOje50fUhdwi6GBidofBb23vovsANyfMa6_tC1bwGH_eENWgy7UPc_hhG0OYordOF0nWDyu8fo9elxNZtni-Xzy2y6yAwtVZcJwnJdOksKrQsQtOB8LQvGBC2lAasLTp0wudBqvXaFhVxwZ9hwFGCtBsvG6Obku43hs4fUVZvQx3aIrKjIZcm4kHygbk-UiSGlCK7aRt_oeKhyUh07rf47Zd_lM2pg</recordid><startdate>20220927</startdate><enddate>20220927</enddate><creator>Wang, Lan</creator><creator>Pan, Ya</creator><creator>Wu, Dan</creator><creator>Liu, Xiaokang</creator><creator>Cao, Linlin</creator><creator>Zhang, Wei</creator><creator>Chen, Honglei</creator><creator>Liu, Tong</creator><creator>Liu, Dong</creator><creator>Chen, Tao</creator><creator>Ding, Tao</creator><creator>Wang, Yi</creator><creator>Ding, Chenglong</creator><creator>Kang, Caitao</creator><creator>Li, Changli</creator><creator>He, Jingfu</creator><creator>Yao, Tao</creator><general>Royal Society of Chemistry</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7SR</scope><scope>7ST</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>C1K</scope><scope>JG9</scope><scope>L7M</scope><scope>SOI</scope><orcidid>https://orcid.org/0000-0003-1787-2465</orcidid><orcidid>https://orcid.org/0000-0002-9474-1947</orcidid><orcidid>https://orcid.org/0000-0001-5149-7318</orcidid><orcidid>https://orcid.org/0000-0001-8699-8294</orcidid><orcidid>https://orcid.org/0000-0001-8100-8693</orcidid><orcidid>https://orcid.org/0000-0001-9143-0679</orcidid><orcidid>https://orcid.org/0000-0002-7639-0151</orcidid></search><sort><creationdate>20220927</creationdate><title>The in situ formation of defective CoOOH catalysts from semi-oxidized Co for alkaline oxygen evolution reaction</title><author>Wang, Lan ; Pan, Ya ; Wu, Dan ; Liu, Xiaokang ; Cao, Linlin ; Zhang, Wei ; Chen, Honglei ; Liu, Tong ; Liu, Dong ; Chen, Tao ; Ding, Tao ; Wang, Yi ; Ding, Chenglong ; Kang, Caitao ; Li, Changli ; He, Jingfu ; Yao, Tao</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c259t-7031a5fd04aa4e72466b84337258ceda462f7c17a9bbf4de176fc32587eddaed3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Catalysis</topic><topic>Catalysts</topic><topic>Chemical synthesis</topic><topic>Cobalt oxides</topic><topic>Design defects</topic><topic>Electrocatalysts</topic><topic>Electrochemistry</topic><topic>Graphene</topic><topic>Hydrogen production</topic><topic>Oxidation</topic><topic>Oxygen evolution reactions</topic><topic>Self-assembly</topic><topic>Water splitting</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wang, Lan</creatorcontrib><creatorcontrib>Pan, Ya</creatorcontrib><creatorcontrib>Wu, Dan</creatorcontrib><creatorcontrib>Liu, Xiaokang</creatorcontrib><creatorcontrib>Cao, Linlin</creatorcontrib><creatorcontrib>Zhang, Wei</creatorcontrib><creatorcontrib>Chen, Honglei</creatorcontrib><creatorcontrib>Liu, Tong</creatorcontrib><creatorcontrib>Liu, Dong</creatorcontrib><creatorcontrib>Chen, Tao</creatorcontrib><creatorcontrib>Ding, Tao</creatorcontrib><creatorcontrib>Wang, Yi</creatorcontrib><creatorcontrib>Ding, Chenglong</creatorcontrib><creatorcontrib>Kang, Caitao</creatorcontrib><creatorcontrib>Li, Changli</creatorcontrib><creatorcontrib>He, Jingfu</creatorcontrib><creatorcontrib>Yao, Tao</creatorcontrib><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Environment Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Environment Abstracts</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>Wang, Lan</au><au>Pan, Ya</au><au>Wu, Dan</au><au>Liu, Xiaokang</au><au>Cao, Linlin</au><au>Zhang, Wei</au><au>Chen, Honglei</au><au>Liu, Tong</au><au>Liu, Dong</au><au>Chen, Tao</au><au>Ding, Tao</au><au>Wang, Yi</au><au>Ding, Chenglong</au><au>Kang, Caitao</au><au>Li, Changli</au><au>He, Jingfu</au><au>Yao, Tao</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The in situ formation of defective CoOOH catalysts from semi-oxidized Co for alkaline oxygen evolution reaction</atitle><jtitle>Journal of materials chemistry. A, Materials for energy and sustainability</jtitle><date>2022-09-27</date><risdate>2022</risdate><volume>10</volume><issue>37</issue><spage>20011</spage><epage>20017</epage><pages>20011-20017</pages><issn>2050-7488</issn><eissn>2050-7496</eissn><abstract>Electrochemical water splitting based on Co oxide electrocatalysts provides a promising means for renewable hydrogen production from water. Identifying the structure evolution and real-time active structure of Co-based electrocatalysts under operational conditions is crucial for understanding the OER mechanism and rational design of efficient catalysts. Here, we systematically synthesized three types of Co-based precatalysts, including Co/graphene oxide (GO), Co–CoO/GO and Co
3
O
4
/GO, to clarify the critical effects of the precatalyst structure for OER. The electrochemical test results confirm that the Co–CoO/GO precatalyst shows a lower overpotential compared to Co/GO and Co
3
O
4
/GO precatalysts and commercial RuO
2
/C. A thorough
in situ
analysis by XAFS revealed that the Co–CoO/GO precatalysts are oxidized and self-assembled into CoOOH during water oxidation and possess a much higher O vacancy density compared with the CoOOH derived from Co/GO, while the Co
3
O
4
/GO precatalyst maintains its structure during operation. This strategy of
in situ
creation of defects in CoOOH provides a guideline for the rational design of future catalysis systems.</abstract><cop>Cambridge</cop><pub>Royal Society of Chemistry</pub><doi>10.1039/D2TA02989H</doi><tpages>7</tpages><orcidid>https://orcid.org/0000-0003-1787-2465</orcidid><orcidid>https://orcid.org/0000-0002-9474-1947</orcidid><orcidid>https://orcid.org/0000-0001-5149-7318</orcidid><orcidid>https://orcid.org/0000-0001-8699-8294</orcidid><orcidid>https://orcid.org/0000-0001-8100-8693</orcidid><orcidid>https://orcid.org/0000-0001-9143-0679</orcidid><orcidid>https://orcid.org/0000-0002-7639-0151</orcidid></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 2050-7488 |
| ispartof | Journal of materials chemistry. A, Materials for energy and sustainability, 2022-09, Vol.10 (37), p.20011-20017 |
| issn | 2050-7488 2050-7496 |
| language | eng |
| recordid | cdi_proquest_journals_2718536786 |
| source | Royal Society Of Chemistry Journals 2008- |
| subjects | Catalysis Catalysts Chemical synthesis Cobalt oxides Design defects Electrocatalysts Electrochemistry Graphene Hydrogen production Oxidation Oxygen evolution reactions Self-assembly Water splitting |
| title | The in situ formation of defective CoOOH catalysts from semi-oxidized Co for alkaline oxygen evolution reaction |
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