Intermetallic IrGa-$ IrO_{x} $ core-shell electrocatalysts for oxygen evolution
Abstract The development of high-performance Ir-based catalyst for electrocatalysis of oxygen evolution reaction (OER) in acidic media plays a critical role in realizing the commercialization of polymer electrolyte membrane-based water electrolyzer technology. Here we report a low-Ir core-shell OER...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Chen, Lin-Wei [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2021 |
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| Schlagwörter: |
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| Anmerkung: |
© Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2021 |
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| Übergeordnetes Werk: |
Enthalten in: Nano research - [S.l.] : Tsinghua Press, 2008, 15(2021), 3 vom: 29. Aug., Seite 1853-1860 |
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| Übergeordnetes Werk: |
volume:15 ; year:2021 ; number:3 ; day:29 ; month:08 ; pages:1853-1860 |
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| DOI / URN: |
10.1007/s12274-021-3778-0 |
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| Katalog-ID: |
SPR050487027 |
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| 520 | |a Abstract The development of high-performance Ir-based catalyst for electrocatalysis of oxygen evolution reaction (OER) in acidic media plays a critical role in realizing the commercialization of polymer electrolyte membrane-based water electrolyzer technology. Here we report a low-Ir core-shell OER electrocatalyst consisting of an intermetallic IrGa (IrGa-IMC) core and a partially oxidized Ir ($ IrO_{x} $) shell. In acidic electrolytes, the IrGa-IMC$ IrO_{x} $ core-shell catalysts exhibit a low overpotential of 272 mV at 10 mA·$ cm^{−2} $ with Ir loading of ∼20 µg·$ cm^{−2} $ and a mass activity of 841 A·$ g_{Ir} $−1 at 1.52 V, which is 3.6 times greater than that of commercial Ir/C (232 A·$ g_{Ir} $−1) catalyst. We understand by the density functional theory (DFT) calculations that the enhanced OER activity of the IrGa-IMC@$ IrO_{x} $ catalysts is ascribed to the lifted degeneracy of Ir 5d electron of surface $ IrO_{x} $ sites induced by the intermetallic IrGa core, which increases the adsorption capacity of $ IrO_{x} $ layer for O and OH binding and eventually lowers the energy barrier of the OER rate-determining steps. | ||
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| 700 | 1 | |a He, Fuxiang |4 aut | |
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| 700 | 1 | |a Yin, Peng |4 aut | |
| 700 | 1 | |a Zeng, Wei-Jie |4 aut | |
| 700 | 1 | |a Zuo, Ming |4 aut | |
| 700 | 1 | |a He, Lixin |4 aut | |
| 700 | 1 | |a Liang, Hai-Wei |4 aut | |
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10.1007/s12274-021-3778-0 doi (DE-627)SPR050487027 (SPR)s12274-021-3778-0-e DE-627 ger DE-627 rakwb eng Chen, Lin-Wei verfasserin aut Intermetallic IrGa-$ IrO_{x} $ core-shell electrocatalysts for oxygen evolution 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2021 Abstract The development of high-performance Ir-based catalyst for electrocatalysis of oxygen evolution reaction (OER) in acidic media plays a critical role in realizing the commercialization of polymer electrolyte membrane-based water electrolyzer technology. Here we report a low-Ir core-shell OER electrocatalyst consisting of an intermetallic IrGa (IrGa-IMC) core and a partially oxidized Ir ($ IrO_{x} $) shell. In acidic electrolytes, the IrGa-IMC$ IrO_{x} $ core-shell catalysts exhibit a low overpotential of 272 mV at 10 mA·$ cm^{−2} $ with Ir loading of ∼20 µg·$ cm^{−2} $ and a mass activity of 841 A·$ g_{Ir} $−1 at 1.52 V, which is 3.6 times greater than that of commercial Ir/C (232 A·$ g_{Ir} $−1) catalyst. We understand by the density functional theory (DFT) calculations that the enhanced OER activity of the IrGa-IMC@$ IrO_{x} $ catalysts is ascribed to the lifted degeneracy of Ir 5d electron of surface $ IrO_{x} $ sites induced by the intermetallic IrGa core, which increases the adsorption capacity of $ IrO_{x} $ layer for O and OH binding and eventually lowers the energy barrier of the OER rate-determining steps. IrGa (dpeaa)DE-He213 intermetallics (dpeaa)DE-He213 electrocatalysts (dpeaa)DE-He213 oxygen evolution reaction (dpeaa)DE-He213 core-shell (dpeaa)DE-He213 He, Fuxiang aut Shao, Ru-Yang aut Yan, Qiang-Qiang aut Yin, Peng aut Zeng, Wei-Jie aut Zuo, Ming aut He, Lixin aut Liang, Hai-Wei aut Enthalten in Nano research [S.l.] : Tsinghua Press, 2008 15(2021), 3 vom: 29. Aug., Seite 1853-1860 (DE-627)57375361X (DE-600)2442216-2 1998-0000 nnns volume:15 year:2021 number:3 day:29 month:08 pages:1853-1860 https://dx.doi.org/10.1007/s12274-021-3778-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 15 2021 3 29 08 1853-1860 |
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10.1007/s12274-021-3778-0 doi (DE-627)SPR050487027 (SPR)s12274-021-3778-0-e DE-627 ger DE-627 rakwb eng Chen, Lin-Wei verfasserin aut Intermetallic IrGa-$ IrO_{x} $ core-shell electrocatalysts for oxygen evolution 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2021 Abstract The development of high-performance Ir-based catalyst for electrocatalysis of oxygen evolution reaction (OER) in acidic media plays a critical role in realizing the commercialization of polymer electrolyte membrane-based water electrolyzer technology. Here we report a low-Ir core-shell OER electrocatalyst consisting of an intermetallic IrGa (IrGa-IMC) core and a partially oxidized Ir ($ IrO_{x} $) shell. In acidic electrolytes, the IrGa-IMC$ IrO_{x} $ core-shell catalysts exhibit a low overpotential of 272 mV at 10 mA·$ cm^{−2} $ with Ir loading of ∼20 µg·$ cm^{−2} $ and a mass activity of 841 A·$ g_{Ir} $−1 at 1.52 V, which is 3.6 times greater than that of commercial Ir/C (232 A·$ g_{Ir} $−1) catalyst. We understand by the density functional theory (DFT) calculations that the enhanced OER activity of the IrGa-IMC@$ IrO_{x} $ catalysts is ascribed to the lifted degeneracy of Ir 5d electron of surface $ IrO_{x} $ sites induced by the intermetallic IrGa core, which increases the adsorption capacity of $ IrO_{x} $ layer for O and OH binding and eventually lowers the energy barrier of the OER rate-determining steps. IrGa (dpeaa)DE-He213 intermetallics (dpeaa)DE-He213 electrocatalysts (dpeaa)DE-He213 oxygen evolution reaction (dpeaa)DE-He213 core-shell (dpeaa)DE-He213 He, Fuxiang aut Shao, Ru-Yang aut Yan, Qiang-Qiang aut Yin, Peng aut Zeng, Wei-Jie aut Zuo, Ming aut He, Lixin aut Liang, Hai-Wei aut Enthalten in Nano research [S.l.] : Tsinghua Press, 2008 15(2021), 3 vom: 29. Aug., Seite 1853-1860 (DE-627)57375361X (DE-600)2442216-2 1998-0000 nnns volume:15 year:2021 number:3 day:29 month:08 pages:1853-1860 https://dx.doi.org/10.1007/s12274-021-3778-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 15 2021 3 29 08 1853-1860 |
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10.1007/s12274-021-3778-0 doi (DE-627)SPR050487027 (SPR)s12274-021-3778-0-e DE-627 ger DE-627 rakwb eng Chen, Lin-Wei verfasserin aut Intermetallic IrGa-$ IrO_{x} $ core-shell electrocatalysts for oxygen evolution 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2021 Abstract The development of high-performance Ir-based catalyst for electrocatalysis of oxygen evolution reaction (OER) in acidic media plays a critical role in realizing the commercialization of polymer electrolyte membrane-based water electrolyzer technology. Here we report a low-Ir core-shell OER electrocatalyst consisting of an intermetallic IrGa (IrGa-IMC) core and a partially oxidized Ir ($ IrO_{x} $) shell. In acidic electrolytes, the IrGa-IMC$ IrO_{x} $ core-shell catalysts exhibit a low overpotential of 272 mV at 10 mA·$ cm^{−2} $ with Ir loading of ∼20 µg·$ cm^{−2} $ and a mass activity of 841 A·$ g_{Ir} $−1 at 1.52 V, which is 3.6 times greater than that of commercial Ir/C (232 A·$ g_{Ir} $−1) catalyst. We understand by the density functional theory (DFT) calculations that the enhanced OER activity of the IrGa-IMC@$ IrO_{x} $ catalysts is ascribed to the lifted degeneracy of Ir 5d electron of surface $ IrO_{x} $ sites induced by the intermetallic IrGa core, which increases the adsorption capacity of $ IrO_{x} $ layer for O and OH binding and eventually lowers the energy barrier of the OER rate-determining steps. IrGa (dpeaa)DE-He213 intermetallics (dpeaa)DE-He213 electrocatalysts (dpeaa)DE-He213 oxygen evolution reaction (dpeaa)DE-He213 core-shell (dpeaa)DE-He213 He, Fuxiang aut Shao, Ru-Yang aut Yan, Qiang-Qiang aut Yin, Peng aut Zeng, Wei-Jie aut Zuo, Ming aut He, Lixin aut Liang, Hai-Wei aut Enthalten in Nano research [S.l.] : Tsinghua Press, 2008 15(2021), 3 vom: 29. Aug., Seite 1853-1860 (DE-627)57375361X (DE-600)2442216-2 1998-0000 nnns volume:15 year:2021 number:3 day:29 month:08 pages:1853-1860 https://dx.doi.org/10.1007/s12274-021-3778-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 15 2021 3 29 08 1853-1860 |
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10.1007/s12274-021-3778-0 doi (DE-627)SPR050487027 (SPR)s12274-021-3778-0-e DE-627 ger DE-627 rakwb eng Chen, Lin-Wei verfasserin aut Intermetallic IrGa-$ IrO_{x} $ core-shell electrocatalysts for oxygen evolution 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2021 Abstract The development of high-performance Ir-based catalyst for electrocatalysis of oxygen evolution reaction (OER) in acidic media plays a critical role in realizing the commercialization of polymer electrolyte membrane-based water electrolyzer technology. Here we report a low-Ir core-shell OER electrocatalyst consisting of an intermetallic IrGa (IrGa-IMC) core and a partially oxidized Ir ($ IrO_{x} $) shell. In acidic electrolytes, the IrGa-IMC$ IrO_{x} $ core-shell catalysts exhibit a low overpotential of 272 mV at 10 mA·$ cm^{−2} $ with Ir loading of ∼20 µg·$ cm^{−2} $ and a mass activity of 841 A·$ g_{Ir} $−1 at 1.52 V, which is 3.6 times greater than that of commercial Ir/C (232 A·$ g_{Ir} $−1) catalyst. We understand by the density functional theory (DFT) calculations that the enhanced OER activity of the IrGa-IMC@$ IrO_{x} $ catalysts is ascribed to the lifted degeneracy of Ir 5d electron of surface $ IrO_{x} $ sites induced by the intermetallic IrGa core, which increases the adsorption capacity of $ IrO_{x} $ layer for O and OH binding and eventually lowers the energy barrier of the OER rate-determining steps. IrGa (dpeaa)DE-He213 intermetallics (dpeaa)DE-He213 electrocatalysts (dpeaa)DE-He213 oxygen evolution reaction (dpeaa)DE-He213 core-shell (dpeaa)DE-He213 He, Fuxiang aut Shao, Ru-Yang aut Yan, Qiang-Qiang aut Yin, Peng aut Zeng, Wei-Jie aut Zuo, Ming aut He, Lixin aut Liang, Hai-Wei aut Enthalten in Nano research [S.l.] : Tsinghua Press, 2008 15(2021), 3 vom: 29. Aug., Seite 1853-1860 (DE-627)57375361X (DE-600)2442216-2 1998-0000 nnns volume:15 year:2021 number:3 day:29 month:08 pages:1853-1860 https://dx.doi.org/10.1007/s12274-021-3778-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 15 2021 3 29 08 1853-1860 |
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10.1007/s12274-021-3778-0 doi (DE-627)SPR050487027 (SPR)s12274-021-3778-0-e DE-627 ger DE-627 rakwb eng Chen, Lin-Wei verfasserin aut Intermetallic IrGa-$ IrO_{x} $ core-shell electrocatalysts for oxygen evolution 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2021 Abstract The development of high-performance Ir-based catalyst for electrocatalysis of oxygen evolution reaction (OER) in acidic media plays a critical role in realizing the commercialization of polymer electrolyte membrane-based water electrolyzer technology. Here we report a low-Ir core-shell OER electrocatalyst consisting of an intermetallic IrGa (IrGa-IMC) core and a partially oxidized Ir ($ IrO_{x} $) shell. In acidic electrolytes, the IrGa-IMC$ IrO_{x} $ core-shell catalysts exhibit a low overpotential of 272 mV at 10 mA·$ cm^{−2} $ with Ir loading of ∼20 µg·$ cm^{−2} $ and a mass activity of 841 A·$ g_{Ir} $−1 at 1.52 V, which is 3.6 times greater than that of commercial Ir/C (232 A·$ g_{Ir} $−1) catalyst. We understand by the density functional theory (DFT) calculations that the enhanced OER activity of the IrGa-IMC@$ IrO_{x} $ catalysts is ascribed to the lifted degeneracy of Ir 5d electron of surface $ IrO_{x} $ sites induced by the intermetallic IrGa core, which increases the adsorption capacity of $ IrO_{x} $ layer for O and OH binding and eventually lowers the energy barrier of the OER rate-determining steps. IrGa (dpeaa)DE-He213 intermetallics (dpeaa)DE-He213 electrocatalysts (dpeaa)DE-He213 oxygen evolution reaction (dpeaa)DE-He213 core-shell (dpeaa)DE-He213 He, Fuxiang aut Shao, Ru-Yang aut Yan, Qiang-Qiang aut Yin, Peng aut Zeng, Wei-Jie aut Zuo, Ming aut He, Lixin aut Liang, Hai-Wei aut Enthalten in Nano research [S.l.] : Tsinghua Press, 2008 15(2021), 3 vom: 29. Aug., Seite 1853-1860 (DE-627)57375361X (DE-600)2442216-2 1998-0000 nnns volume:15 year:2021 number:3 day:29 month:08 pages:1853-1860 https://dx.doi.org/10.1007/s12274-021-3778-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 15 2021 3 29 08 1853-1860 |
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Enthalten in Nano research 15(2021), 3 vom: 29. Aug., Seite 1853-1860 volume:15 year:2021 number:3 day:29 month:08 pages:1853-1860 |
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Enthalten in Nano research 15(2021), 3 vom: 29. Aug., Seite 1853-1860 volume:15 year:2021 number:3 day:29 month:08 pages:1853-1860 |
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Chen, Lin-Wei @@aut@@ He, Fuxiang @@aut@@ Shao, Ru-Yang @@aut@@ Yan, Qiang-Qiang @@aut@@ Yin, Peng @@aut@@ Zeng, Wei-Jie @@aut@@ Zuo, Ming @@aut@@ He, Lixin @@aut@@ Liang, Hai-Wei @@aut@@ |
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Here we report a low-Ir core-shell OER electrocatalyst consisting of an intermetallic IrGa (IrGa-IMC) core and a partially oxidized Ir ($ IrO_{x} $) shell. In acidic electrolytes, the IrGa-IMC$ IrO_{x} $ core-shell catalysts exhibit a low overpotential of 272 mV at 10 mA·$ cm^{−2} $ with Ir loading of ∼20 µg·$ cm^{−2} $ and a mass activity of 841 A·$ g_{Ir} $−1 at 1.52 V, which is 3.6 times greater than that of commercial Ir/C (232 A·$ g_{Ir} $−1) catalyst. 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Chen, Lin-Wei |
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Chen, Lin-Wei misc IrGa misc intermetallics misc electrocatalysts misc oxygen evolution reaction misc core-shell Intermetallic IrGa-$ IrO_{x} $ core-shell electrocatalysts for oxygen evolution |
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Intermetallic IrGa-$ IrO_{x} $ core-shell electrocatalysts for oxygen evolution IrGa (dpeaa)DE-He213 intermetallics (dpeaa)DE-He213 electrocatalysts (dpeaa)DE-He213 oxygen evolution reaction (dpeaa)DE-He213 core-shell (dpeaa)DE-He213 |
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Intermetallic IrGa-$ IrO_{x} $ core-shell electrocatalysts for oxygen evolution |
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Chen, Lin-Wei He, Fuxiang Shao, Ru-Yang Yan, Qiang-Qiang Yin, Peng Zeng, Wei-Jie Zuo, Ming He, Lixin Liang, Hai-Wei |
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intermetallic irga-$ iro_{x} $ core-shell electrocatalysts for oxygen evolution |
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Intermetallic IrGa-$ IrO_{x} $ core-shell electrocatalysts for oxygen evolution |
| abstract |
Abstract The development of high-performance Ir-based catalyst for electrocatalysis of oxygen evolution reaction (OER) in acidic media plays a critical role in realizing the commercialization of polymer electrolyte membrane-based water electrolyzer technology. Here we report a low-Ir core-shell OER electrocatalyst consisting of an intermetallic IrGa (IrGa-IMC) core and a partially oxidized Ir ($ IrO_{x} $) shell. In acidic electrolytes, the IrGa-IMC$ IrO_{x} $ core-shell catalysts exhibit a low overpotential of 272 mV at 10 mA·$ cm^{−2} $ with Ir loading of ∼20 µg·$ cm^{−2} $ and a mass activity of 841 A·$ g_{Ir} $−1 at 1.52 V, which is 3.6 times greater than that of commercial Ir/C (232 A·$ g_{Ir} $−1) catalyst. We understand by the density functional theory (DFT) calculations that the enhanced OER activity of the IrGa-IMC@$ IrO_{x} $ catalysts is ascribed to the lifted degeneracy of Ir 5d electron of surface $ IrO_{x} $ sites induced by the intermetallic IrGa core, which increases the adsorption capacity of $ IrO_{x} $ layer for O and OH binding and eventually lowers the energy barrier of the OER rate-determining steps. © Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2021 |
| abstractGer |
Abstract The development of high-performance Ir-based catalyst for electrocatalysis of oxygen evolution reaction (OER) in acidic media plays a critical role in realizing the commercialization of polymer electrolyte membrane-based water electrolyzer technology. Here we report a low-Ir core-shell OER electrocatalyst consisting of an intermetallic IrGa (IrGa-IMC) core and a partially oxidized Ir ($ IrO_{x} $) shell. In acidic electrolytes, the IrGa-IMC$ IrO_{x} $ core-shell catalysts exhibit a low overpotential of 272 mV at 10 mA·$ cm^{−2} $ with Ir loading of ∼20 µg·$ cm^{−2} $ and a mass activity of 841 A·$ g_{Ir} $−1 at 1.52 V, which is 3.6 times greater than that of commercial Ir/C (232 A·$ g_{Ir} $−1) catalyst. We understand by the density functional theory (DFT) calculations that the enhanced OER activity of the IrGa-IMC@$ IrO_{x} $ catalysts is ascribed to the lifted degeneracy of Ir 5d electron of surface $ IrO_{x} $ sites induced by the intermetallic IrGa core, which increases the adsorption capacity of $ IrO_{x} $ layer for O and OH binding and eventually lowers the energy barrier of the OER rate-determining steps. © Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2021 |
| abstract_unstemmed |
Abstract The development of high-performance Ir-based catalyst for electrocatalysis of oxygen evolution reaction (OER) in acidic media plays a critical role in realizing the commercialization of polymer electrolyte membrane-based water electrolyzer technology. Here we report a low-Ir core-shell OER electrocatalyst consisting of an intermetallic IrGa (IrGa-IMC) core and a partially oxidized Ir ($ IrO_{x} $) shell. In acidic electrolytes, the IrGa-IMC$ IrO_{x} $ core-shell catalysts exhibit a low overpotential of 272 mV at 10 mA·$ cm^{−2} $ with Ir loading of ∼20 µg·$ cm^{−2} $ and a mass activity of 841 A·$ g_{Ir} $−1 at 1.52 V, which is 3.6 times greater than that of commercial Ir/C (232 A·$ g_{Ir} $−1) catalyst. We understand by the density functional theory (DFT) calculations that the enhanced OER activity of the IrGa-IMC@$ IrO_{x} $ catalysts is ascribed to the lifted degeneracy of Ir 5d electron of surface $ IrO_{x} $ sites induced by the intermetallic IrGa core, which increases the adsorption capacity of $ IrO_{x} $ layer for O and OH binding and eventually lowers the energy barrier of the OER rate-determining steps. © Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2021 |
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| title_short |
Intermetallic IrGa-$ IrO_{x} $ core-shell electrocatalysts for oxygen evolution |
| url |
https://dx.doi.org/10.1007/s12274-021-3778-0 |
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| author2 |
He, Fuxiang Shao, Ru-Yang Yan, Qiang-Qiang Yin, Peng Zeng, Wei-Jie Zuo, Ming He, Lixin Liang, Hai-Wei |
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He, Fuxiang Shao, Ru-Yang Yan, Qiang-Qiang Yin, Peng Zeng, Wei-Jie Zuo, Ming He, Lixin Liang, Hai-Wei |
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10.1007/s12274-021-3778-0 |
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2024-07-03T15:51:12.990Z |
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| score |
7.3983088 |