NiFeLDH/Mo4/3B2−xTz/NF composite electrodes to enhance oxygen evolution performance
A NiFeLDH/Mo4/3B2−xTz/NF (nickel foam) composite electrode was prepared by electrodepositing a layer of NiFe-layered hydroxides (NiFeLDHs) on Mo4/3B2−xTz/NF, which was obtained by soaking NF in two-dimensional Mo4/3B2−xTz suspensions. The electrode enhances the electrocatalytic oxygen evolution reac...
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| Veröffentlicht in: | Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2024-04, Vol.12 (16), p.9714-9722 |
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| container_title | Journal of materials chemistry. A, Materials for energy and sustainability |
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| creator | Xu, Lulu Yang, Peng Ye, Ruilong Wu, Xingcai Yourong Tao |
| description | A NiFeLDH/Mo4/3B2−xTz/NF (nickel foam) composite electrode was prepared by electrodepositing a layer of NiFe-layered hydroxides (NiFeLDHs) on Mo4/3B2−xTz/NF, which was obtained by soaking NF in two-dimensional Mo4/3B2−xTz suspensions. The electrode enhances the electrocatalytic oxygen evolution reaction with overpotentials of 200 and 255 mV at current densities of 10 and 100 mA cm−2, respectively, in 1.0 M KOH solution, while displaying excellent electrochemical stability. It is superior to commercial RuO2 with overpotentials of 280 and 320 mV at current densities of 10 and 100 mA cm−2, respectively. Density functional theory calculation shows that the electronic density of the composite materials increased after NiFeLDH was loaded on Mo4/3B2−xTz and that the free energy change of the final velocity step of NiFeLDH/Mo4/3B2−xTz/NF is clearly lower than that of Mo4/3B2−xTz/NF for the oxygen evolution reaction; therefore, the activity of the former is higher than that of the latter, and this performance enhancement is attributed to the synergistic effect of Mo4/3B2−xTz and NiFeLDH. |
| doi_str_mv | 10.1039/d4ta00834k |
| format | Article |
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The electrode enhances the electrocatalytic oxygen evolution reaction with overpotentials of 200 and 255 mV at current densities of 10 and 100 mA cm−2, respectively, in 1.0 M KOH solution, while displaying excellent electrochemical stability. It is superior to commercial RuO2 with overpotentials of 280 and 320 mV at current densities of 10 and 100 mA cm−2, respectively. Density functional theory calculation shows that the electronic density of the composite materials increased after NiFeLDH was loaded on Mo4/3B2−xTz and that the free energy change of the final velocity step of NiFeLDH/Mo4/3B2−xTz/NF is clearly lower than that of Mo4/3B2−xTz/NF for the oxygen evolution reaction; therefore, the activity of the former is higher than that of the latter, and this performance enhancement is attributed to the synergistic effect of Mo4/3B2−xTz and NiFeLDH.</description><identifier>ISSN: 2050-7488</identifier><identifier>EISSN: 2050-7496</identifier><identifier>DOI: 10.1039/d4ta00834k</identifier><language>eng</language><publisher>Cambridge: Royal Society of Chemistry</publisher><subject>Composite materials ; Current density ; Density functional theory ; Electrochemistry ; Electrodes ; Electron density ; Evolution ; Foams ; Free energy ; Hydroxides ; Iron compounds ; Metal foams ; Nickel ; Nickel compounds ; Oxygen ; Oxygen evolution reactions ; Performance enhancement ; Synergistic effect</subject><ispartof>Journal of materials chemistry. A, Materials for energy and sustainability, 2024-04, Vol.12 (16), p.9714-9722</ispartof><rights>Copyright Royal Society of Chemistry 2024</rights><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>Xu, Lulu</creatorcontrib><creatorcontrib>Yang, Peng</creatorcontrib><creatorcontrib>Ye, Ruilong</creatorcontrib><creatorcontrib>Wu, Xingcai</creatorcontrib><creatorcontrib>Yourong Tao</creatorcontrib><title>NiFeLDH/Mo4/3B2−xTz/NF composite electrodes to enhance oxygen evolution performance</title><title>Journal of materials chemistry. A, Materials for energy and sustainability</title><description>A NiFeLDH/Mo4/3B2−xTz/NF (nickel foam) composite electrode was prepared by electrodepositing a layer of NiFe-layered hydroxides (NiFeLDHs) on Mo4/3B2−xTz/NF, which was obtained by soaking NF in two-dimensional Mo4/3B2−xTz suspensions. The electrode enhances the electrocatalytic oxygen evolution reaction with overpotentials of 200 and 255 mV at current densities of 10 and 100 mA cm−2, respectively, in 1.0 M KOH solution, while displaying excellent electrochemical stability. It is superior to commercial RuO2 with overpotentials of 280 and 320 mV at current densities of 10 and 100 mA cm−2, respectively. Density functional theory calculation shows that the electronic density of the composite materials increased after NiFeLDH was loaded on Mo4/3B2−xTz and that the free energy change of the final velocity step of NiFeLDH/Mo4/3B2−xTz/NF is clearly lower than that of Mo4/3B2−xTz/NF for the oxygen evolution reaction; therefore, the activity of the former is higher than that of the latter, and this performance enhancement is attributed to the synergistic effect of Mo4/3B2−xTz and NiFeLDH.</description><subject>Composite materials</subject><subject>Current density</subject><subject>Density functional theory</subject><subject>Electrochemistry</subject><subject>Electrodes</subject><subject>Electron density</subject><subject>Evolution</subject><subject>Foams</subject><subject>Free energy</subject><subject>Hydroxides</subject><subject>Iron compounds</subject><subject>Metal foams</subject><subject>Nickel</subject><subject>Nickel compounds</subject><subject>Oxygen</subject><subject>Oxygen evolution reactions</subject><subject>Performance enhancement</subject><subject>Synergistic effect</subject><issn>2050-7488</issn><issn>2050-7496</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><recordid>eNo9jbFOwzAYhC0EElXpwhNYYg6xYyexRyikRQplaefKsX9DShqH2EGFJ2DmEXkSgkDccid9pzuEzim5pITJ2PCgCBGMPx-hSUJSEuVcZsf_WYhTNPN-R0YJQjIpJ2izqgsob5bxveMxu06-Pj4P6_d4VWDt9p3zdQAMDejQOwMeB4ehfVKtBuwOb4_QYnh1zRBq1-IOeuv6_Q88QydWNR5mfz5Fm-J2PV9G5cPibn5VRh0VLESUC6NB2lzLylBgubY2FUaBEkrSEWgwKqWVzSCxYyHhkCttpc0qkBnRbIoufne73r0M4MN254a-HS-3jHBOEyJZzr4BJ-pVhQ</recordid><startdate>20240423</startdate><enddate>20240423</enddate><creator>Xu, Lulu</creator><creator>Yang, Peng</creator><creator>Ye, Ruilong</creator><creator>Wu, Xingcai</creator><creator>Yourong Tao</creator><general>Royal Society of Chemistry</general><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></search><sort><creationdate>20240423</creationdate><title>NiFeLDH/Mo4/3B2−xTz/NF composite electrodes to enhance oxygen evolution performance</title><author>Xu, Lulu ; Yang, Peng ; Ye, Ruilong ; Wu, Xingcai ; Yourong Tao</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-p183t-148dce9f7c9bd1e37cff58daea8a91e9fceda51bf6e2fd1e24e7acf9f6be960c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Composite materials</topic><topic>Current density</topic><topic>Density functional theory</topic><topic>Electrochemistry</topic><topic>Electrodes</topic><topic>Electron density</topic><topic>Evolution</topic><topic>Foams</topic><topic>Free energy</topic><topic>Hydroxides</topic><topic>Iron compounds</topic><topic>Metal foams</topic><topic>Nickel</topic><topic>Nickel compounds</topic><topic>Oxygen</topic><topic>Oxygen evolution reactions</topic><topic>Performance enhancement</topic><topic>Synergistic effect</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Xu, Lulu</creatorcontrib><creatorcontrib>Yang, Peng</creatorcontrib><creatorcontrib>Ye, Ruilong</creatorcontrib><creatorcontrib>Wu, Xingcai</creatorcontrib><creatorcontrib>Yourong Tao</creatorcontrib><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>Xu, Lulu</au><au>Yang, Peng</au><au>Ye, Ruilong</au><au>Wu, Xingcai</au><au>Yourong Tao</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>NiFeLDH/Mo4/3B2−xTz/NF composite electrodes to enhance oxygen evolution performance</atitle><jtitle>Journal of materials chemistry. A, Materials for energy and sustainability</jtitle><date>2024-04-23</date><risdate>2024</risdate><volume>12</volume><issue>16</issue><spage>9714</spage><epage>9722</epage><pages>9714-9722</pages><issn>2050-7488</issn><eissn>2050-7496</eissn><abstract>A NiFeLDH/Mo4/3B2−xTz/NF (nickel foam) composite electrode was prepared by electrodepositing a layer of NiFe-layered hydroxides (NiFeLDHs) on Mo4/3B2−xTz/NF, which was obtained by soaking NF in two-dimensional Mo4/3B2−xTz suspensions. The electrode enhances the electrocatalytic oxygen evolution reaction with overpotentials of 200 and 255 mV at current densities of 10 and 100 mA cm−2, respectively, in 1.0 M KOH solution, while displaying excellent electrochemical stability. It is superior to commercial RuO2 with overpotentials of 280 and 320 mV at current densities of 10 and 100 mA cm−2, respectively. Density functional theory calculation shows that the electronic density of the composite materials increased after NiFeLDH was loaded on Mo4/3B2−xTz and that the free energy change of the final velocity step of NiFeLDH/Mo4/3B2−xTz/NF is clearly lower than that of Mo4/3B2−xTz/NF for the oxygen evolution reaction; therefore, the activity of the former is higher than that of the latter, and this performance enhancement is attributed to the synergistic effect of Mo4/3B2−xTz and NiFeLDH.</abstract><cop>Cambridge</cop><pub>Royal Society of Chemistry</pub><doi>10.1039/d4ta00834k</doi><tpages>9</tpages></addata></record> |
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| ispartof | Journal of materials chemistry. A, Materials for energy and sustainability, 2024-04, Vol.12 (16), p.9714-9722 |
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| language | eng |
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| source | Royal Society Of Chemistry Journals 2008- |
| subjects | Composite materials Current density Density functional theory Electrochemistry Electrodes Electron density Evolution Foams Free energy Hydroxides Iron compounds Metal foams Nickel Nickel compounds Oxygen Oxygen evolution reactions Performance enhancement Synergistic effect |
| title | NiFeLDH/Mo4/3B2−xTz/NF composite electrodes to enhance oxygen evolution performance |
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