Ultrafast Preparation of Nonequilibrium FeNi Spinels by Magnetic Induction Heating for Unprecedented Oxygen Evolution Electrocatalysis
Carbon-supported nanocomposites are attracting particular attention as high-performance, low-cost electrocatalysts for electrochemical water splitting. These are mostly prepared by pyrolysis and hydrothermal procedures that are time-consuming (from hours to days) and typically difficult to produce a...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Association for the Advancement of Science (AAAS)
2022-01-01
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| Series: | Research |
| Online Access: | http://dx.doi.org/10.34133/2022/9756983 |
| _version_ | 1797283156013875200 |
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| author | Bingzhang Lu Qiming Liu Chunyang Wang Zaheer Masood David J. Morris Forrest Nichols Rene Mercado Peng Zhang Qingfeng Ge Huolin L. Xin Shaowei Chen |
| author_facet | Bingzhang Lu Qiming Liu Chunyang Wang Zaheer Masood David J. Morris Forrest Nichols Rene Mercado Peng Zhang Qingfeng Ge Huolin L. Xin Shaowei Chen |
| author_sort | Bingzhang Lu |
| collection | DOAJ |
| description | Carbon-supported nanocomposites are attracting particular attention as high-performance, low-cost electrocatalysts for electrochemical water splitting. These are mostly prepared by pyrolysis and hydrothermal procedures that are time-consuming (from hours to days) and typically difficult to produce a nonequilibrium phase. Herein, for the first time ever, we exploit magnetic induction heating-quenching for ultrafast production of carbon-FeNi spinel oxide nanocomposites (within seconds), which exhibit an unprecedentedly high performance towards oxygen evolution reaction (OER), with an ultralow overpotential of only +260 mV to reach the high current density of 100 mA cm-2. Experimental and theoretical studies show that the rapid heating and quenching process (ca. 103 K s-1) impedes the Ni and Fe phase segregation and produces a Cl-rich surface, both contributing to the remarkable catalytic activity. Results from this study highlight the unique advantage of ultrafast heating/quenching in the structural engineering of functional nanocomposites to achieve high electrocatalytic performance towards important electrochemical reactions. |
| first_indexed | 2024-03-07T17:27:00Z |
| format | Article |
| id | doaj.art-3adb46effed7486387d9a9effbbd6210 |
| institution | Directory Open Access Journal |
| issn | 2639-5274 |
| language | English |
| last_indexed | 2024-03-07T17:27:00Z |
| publishDate | 2022-01-01 |
| publisher | American Association for the Advancement of Science (AAAS) |
| record_format | Article |
| series | Research |
| spelling | doaj.art-3adb46effed7486387d9a9effbbd62102024-03-02T18:46:10ZengAmerican Association for the Advancement of Science (AAAS)Research2639-52742022-01-01202210.34133/2022/9756983Ultrafast Preparation of Nonequilibrium FeNi Spinels by Magnetic Induction Heating for Unprecedented Oxygen Evolution ElectrocatalysisBingzhang Lu0Qiming Liu1Chunyang Wang2Zaheer Masood3David J. Morris4Forrest Nichols5Rene Mercado6Peng Zhang7Qingfeng Ge8Huolin L. Xin9Shaowei Chen10Department of Chemistry and Biochemistry, University of California, 1156 High Street, Santa Cruz, California 95064, USADepartment of Chemistry and Biochemistry, University of California, 1156 High Street, Santa Cruz, California 95064, USADepartment of Physics and Astronomy, University of California, Irvine, California 92697, USADepartment of Chemistry and Biochemistry, Southern Illinois University, Carbondale, Illinois 62901, USADepartment of Chemistry, Dalhousie University, 6274 Coburg Road, Halifax, NS, CanadaDepartment of Chemistry and Biochemistry, University of California, 1156 High Street, Santa Cruz, California 95064, USADepartment of Chemistry and Biochemistry, University of California, 1156 High Street, Santa Cruz, California 95064, USADepartment of Chemistry, Dalhousie University, 6274 Coburg Road, Halifax, NS, CanadaDepartment of Chemistry and Biochemistry, Southern Illinois University, Carbondale, Illinois 62901, USADepartment of Physics and Astronomy, University of California, Irvine, California 92697, USADepartment of Chemistry and Biochemistry, University of California, 1156 High Street, Santa Cruz, California 95064, USACarbon-supported nanocomposites are attracting particular attention as high-performance, low-cost electrocatalysts for electrochemical water splitting. These are mostly prepared by pyrolysis and hydrothermal procedures that are time-consuming (from hours to days) and typically difficult to produce a nonequilibrium phase. Herein, for the first time ever, we exploit magnetic induction heating-quenching for ultrafast production of carbon-FeNi spinel oxide nanocomposites (within seconds), which exhibit an unprecedentedly high performance towards oxygen evolution reaction (OER), with an ultralow overpotential of only +260 mV to reach the high current density of 100 mA cm-2. Experimental and theoretical studies show that the rapid heating and quenching process (ca. 103 K s-1) impedes the Ni and Fe phase segregation and produces a Cl-rich surface, both contributing to the remarkable catalytic activity. Results from this study highlight the unique advantage of ultrafast heating/quenching in the structural engineering of functional nanocomposites to achieve high electrocatalytic performance towards important electrochemical reactions.http://dx.doi.org/10.34133/2022/9756983 |
| spellingShingle | Bingzhang Lu Qiming Liu Chunyang Wang Zaheer Masood David J. Morris Forrest Nichols Rene Mercado Peng Zhang Qingfeng Ge Huolin L. Xin Shaowei Chen Ultrafast Preparation of Nonequilibrium FeNi Spinels by Magnetic Induction Heating for Unprecedented Oxygen Evolution Electrocatalysis Research |
| title | Ultrafast Preparation of Nonequilibrium FeNi Spinels by Magnetic Induction Heating for Unprecedented Oxygen Evolution Electrocatalysis |
| title_full | Ultrafast Preparation of Nonequilibrium FeNi Spinels by Magnetic Induction Heating for Unprecedented Oxygen Evolution Electrocatalysis |
| title_fullStr | Ultrafast Preparation of Nonequilibrium FeNi Spinels by Magnetic Induction Heating for Unprecedented Oxygen Evolution Electrocatalysis |
| title_full_unstemmed | Ultrafast Preparation of Nonequilibrium FeNi Spinels by Magnetic Induction Heating for Unprecedented Oxygen Evolution Electrocatalysis |
| title_short | Ultrafast Preparation of Nonequilibrium FeNi Spinels by Magnetic Induction Heating for Unprecedented Oxygen Evolution Electrocatalysis |
| title_sort | ultrafast preparation of nonequilibrium feni spinels by magnetic induction heating for unprecedented oxygen evolution electrocatalysis |
| url | http://dx.doi.org/10.34133/2022/9756983 |
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