Interface engineering of CeO 2 nanoparticle/Bi 2 WO 6 nanosheet nanohybrids with oxygen vacancies for oxygen evolution reactions under alkaline conditions
Because of the interactive combination synergy effect, hetero interface engineering is used way for advancing electrocatalytic activity and durability. In this study, we demonstrate that a CeO /Bi WO heterostructure is synthesized by a hydrothermal method. Electrochemical measurement results indicat...
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Veröffentlicht in: | RSC advances 2023-03, Vol.13 (13), p.8873-8881 |
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creator | Nam, Dukhyun Lee, Geunhyeong Kim, Jooheon |
description | Because of the interactive combination synergy effect, hetero interface engineering is used way for advancing electrocatalytic activity and durability. In this study, we demonstrate that a CeO
/Bi
WO
heterostructure is synthesized by a hydrothermal method. Electrochemical measurement results indicate that CeO
/Bi
WO
displays not only more OER catalytic active sites with an overpotential of 390 mV and a Tafel slope of 117 mV dec
but also durability for 10 h (97.57%). Such outstanding characteristics are primarily attributed to (1) the considerable activities by CeO
nanoparticles uniformly distributed on Bi
WO
nanosheets and (2) the plentiful Bi-O-Ce and W-O-Ce species playing the role of strong couples between CeO
nanoparticles and Bi
WO
nanosheets and oxygen vacancy existence in CeO
nanoparticles, which can improve the electrochemical active surface area (ECSA) and activity, and enhance the conductivity for OERs. This CeO
/Bi
WO
consists of the heterojunction engineering that can open a modern method of thinking for high effective OER electrocatalysts. |
doi_str_mv | 10.1039/D2RA08273J |
format | Article |
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/Bi
WO
heterostructure is synthesized by a hydrothermal method. Electrochemical measurement results indicate that CeO
/Bi
WO
displays not only more OER catalytic active sites with an overpotential of 390 mV and a Tafel slope of 117 mV dec
but also durability for 10 h (97.57%). Such outstanding characteristics are primarily attributed to (1) the considerable activities by CeO
nanoparticles uniformly distributed on Bi
WO
nanosheets and (2) the plentiful Bi-O-Ce and W-O-Ce species playing the role of strong couples between CeO
nanoparticles and Bi
WO
nanosheets and oxygen vacancy existence in CeO
nanoparticles, which can improve the electrochemical active surface area (ECSA) and activity, and enhance the conductivity for OERs. This CeO
/Bi
WO
consists of the heterojunction engineering that can open a modern method of thinking for high effective OER electrocatalysts.</description><identifier>ISSN: 2046-2069</identifier><identifier>EISSN: 2046-2069</identifier><identifier>DOI: 10.1039/D2RA08273J</identifier><identifier>PMID: 36936830</identifier><language>eng</language><publisher>England</publisher><ispartof>RSC advances, 2023-03, Vol.13 (13), p.8873-8881</ispartof><rights>This journal is © The Royal Society of Chemistry.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c580-7b5019faa95693ce6db636270552f92b3a03c17873cdddb9828f630431ff9edc3</cites><orcidid>0000-0002-6644-7791</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,864,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/36936830$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Nam, Dukhyun</creatorcontrib><creatorcontrib>Lee, Geunhyeong</creatorcontrib><creatorcontrib>Kim, Jooheon</creatorcontrib><title>Interface engineering of CeO 2 nanoparticle/Bi 2 WO 6 nanosheet nanohybrids with oxygen vacancies for oxygen evolution reactions under alkaline conditions</title><title>RSC advances</title><addtitle>RSC Adv</addtitle><description>Because of the interactive combination synergy effect, hetero interface engineering is used way for advancing electrocatalytic activity and durability. In this study, we demonstrate that a CeO
/Bi
WO
heterostructure is synthesized by a hydrothermal method. Electrochemical measurement results indicate that CeO
/Bi
WO
displays not only more OER catalytic active sites with an overpotential of 390 mV and a Tafel slope of 117 mV dec
but also durability for 10 h (97.57%). Such outstanding characteristics are primarily attributed to (1) the considerable activities by CeO
nanoparticles uniformly distributed on Bi
WO
nanosheets and (2) the plentiful Bi-O-Ce and W-O-Ce species playing the role of strong couples between CeO
nanoparticles and Bi
WO
nanosheets and oxygen vacancy existence in CeO
nanoparticles, which can improve the electrochemical active surface area (ECSA) and activity, and enhance the conductivity for OERs. This CeO
/Bi
WO
consists of the heterojunction engineering that can open a modern method of thinking for high effective OER electrocatalysts.</description><issn>2046-2069</issn><issn>2046-2069</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><recordid>eNpNkN1OAjEQhRujEYLc-ACm1yZIt2W720vEPwwJiSHxctNtp1BdWtIuKK_i07qAqHMzX86czGQOQpcJuUkIE_07-jIkOc3Y8wlqUzLgPUq4OP3HLdSN8Y00xdOE8uQctRgXjOeMtNHX2NUQjFSAwc2tAwjWzbE3eARTTLGTzq9kqK2qoH9rG-V1ivlejguAek-LbRmsjvjD1gvsP7dzcHgjlXTKQsTGh6MIG1-ta-sdDiDVDiJeOw0By-pdVs15rLzTdj-5QGdGVhG6P72DZg_3s9FTbzJ9HI-Gk55Kc9LLypQkwkgp0uYpBVyXnHGakTSlRtCSScJUkuUZU1rrUuQ0N5yRAUuMEaAV66Drw1oVfIwBTLEKdinDtkhIsYu4-Iu4MV8dzKt1uQT9az0Gyr4BzrB4wg</recordid><startdate>20230314</startdate><enddate>20230314</enddate><creator>Nam, Dukhyun</creator><creator>Lee, Geunhyeong</creator><creator>Kim, Jooheon</creator><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><orcidid>https://orcid.org/0000-0002-6644-7791</orcidid></search><sort><creationdate>20230314</creationdate><title>Interface engineering of CeO 2 nanoparticle/Bi 2 WO 6 nanosheet nanohybrids with oxygen vacancies for oxygen evolution reactions under alkaline conditions</title><author>Nam, Dukhyun ; Lee, Geunhyeong ; Kim, Jooheon</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c580-7b5019faa95693ce6db636270552f92b3a03c17873cdddb9828f630431ff9edc3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Nam, Dukhyun</creatorcontrib><creatorcontrib>Lee, Geunhyeong</creatorcontrib><creatorcontrib>Kim, Jooheon</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><jtitle>RSC advances</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Nam, Dukhyun</au><au>Lee, Geunhyeong</au><au>Kim, Jooheon</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Interface engineering of CeO 2 nanoparticle/Bi 2 WO 6 nanosheet nanohybrids with oxygen vacancies for oxygen evolution reactions under alkaline conditions</atitle><jtitle>RSC advances</jtitle><addtitle>RSC Adv</addtitle><date>2023-03-14</date><risdate>2023</risdate><volume>13</volume><issue>13</issue><spage>8873</spage><epage>8881</epage><pages>8873-8881</pages><issn>2046-2069</issn><eissn>2046-2069</eissn><abstract>Because of the interactive combination synergy effect, hetero interface engineering is used way for advancing electrocatalytic activity and durability. In this study, we demonstrate that a CeO
/Bi
WO
heterostructure is synthesized by a hydrothermal method. Electrochemical measurement results indicate that CeO
/Bi
WO
displays not only more OER catalytic active sites with an overpotential of 390 mV and a Tafel slope of 117 mV dec
but also durability for 10 h (97.57%). Such outstanding characteristics are primarily attributed to (1) the considerable activities by CeO
nanoparticles uniformly distributed on Bi
WO
nanosheets and (2) the plentiful Bi-O-Ce and W-O-Ce species playing the role of strong couples between CeO
nanoparticles and Bi
WO
nanosheets and oxygen vacancy existence in CeO
nanoparticles, which can improve the electrochemical active surface area (ECSA) and activity, and enhance the conductivity for OERs. This CeO
/Bi
WO
consists of the heterojunction engineering that can open a modern method of thinking for high effective OER electrocatalysts.</abstract><cop>England</cop><pmid>36936830</pmid><doi>10.1039/D2RA08273J</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0002-6644-7791</orcidid></addata></record> |
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source | DOAJ Directory of Open Access Journals; PubMed Central Open Access; EZB-FREE-00999 freely available EZB journals; PubMed Central |
title | Interface engineering of CeO 2 nanoparticle/Bi 2 WO 6 nanosheet nanohybrids with oxygen vacancies for oxygen evolution reactions under alkaline conditions |
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