Microwave-assisted facile synthesis of cobalt[sbnd]iron oxide nanocomposites for oxygen production using alkaline anion exchange membrane water electrolysis.
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| Title: | Microwave-assisted facile synthesis of cobalt[sbnd]iron oxide nanocomposites for oxygen production using alkaline anion exchange membrane water electrolysis. |
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| Authors: | Chen, Guan-Cheng1 (AUTHOR), Wondimu, Tadele Hunde1 (AUTHOR), Huang, Hsin-Chih1 (AUTHOR), Wang, Kai-Chin1 (AUTHOR), Wang, Chen-Hao1 (AUTHOR) chwang@mail.ntust.edu.tw |
| Source: | International Journal of Hydrogen Energy. Apr2019, Vol. 44 Issue 21, p10174-10181. 8p. |
| Subjects: | Hydrogen evolution reactions, Water electrolysis, Iron oxides, Metallic oxides, Precious metals, Metal catalysts, Cobalt |
| Abstract: | In this study, a rapid, scalable, and cost-effective method was developed for synthesizing cobalt–iron metal oxide catalysts for water electrolysis. Cobalt-iron metal oxide catalysts were synthesized using the microwave-assisted hydrothermal methods by varying the molar ratios of cobalt and iron. When the cobalt to iron ratio was 2:1, its electrolytic cell yielded the onset potential of only 1.56 V at 10 mA cm−2, which is close to the thermodynamically reversible potential. When its cell potential was at 1.8 V, the cell current density was approximately 130 mA cm−2. The results of the stability test showed a steady-state cell current density of 130 mA cm−2 and remained constant for more than 16 h at a continuous cell potential of 1.8 V. Compared with other catalysts, cobalt–iron metal oxide catalysts showed lower overpotential and lower Tafel slope than did conventional precious metal catalysts such as PtO 2 and IrO 2. Cobalt-iron metal oxide catalysts serve as an inexpensive route to large-scale commercialization through facile synthesis for enhanced electrochemical water splitting. Image 1 • Co 2 Fe 1 was synthesized by microwave assisted hydrothermal method. • Electrochemical activity of Co 2 Fe 1 for OER was studied. • Amorphous nature and particle size of Co 2 Fe 1. • Co 2 Fe 1 attains lower overpotential of 1.56 V for 10 mAcm−2 and 47.36 mV dec−1. • Co 2 Fe 1 was stable in 1 M KOH at 130 mAcm−2 for more than 16 h. [ABSTRACT FROM AUTHOR] |
| Copyright of International Journal of Hydrogen Energy is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 136352708 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Microwave-assisted facile synthesis of cobalt[sbnd]iron oxide nanocomposites for oxygen production using alkaline anion exchange membrane water electrolysis. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Chen%2C+Guan-Cheng%22">Chen, Guan-Cheng</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wondimu%2C+Tadele+Hunde%22">Wondimu, Tadele Hunde</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Huang%2C+Hsin-Chih%22">Huang, Hsin-Chih</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Kai-Chin%22">Wang, Kai-Chin</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Chen-Hao%22">Wang, Chen-Hao</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> chwang@mail.ntust.edu.tw</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Hydrogen+Energy%22">International Journal of Hydrogen Energy</searchLink>. Apr2019, Vol. 44 Issue 21, p10174-10181. 8p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Hydrogen+evolution+reactions%22">Hydrogen evolution reactions</searchLink><br /><searchLink fieldCode="DE" term="%22Water+electrolysis%22">Water electrolysis</searchLink><br /><searchLink fieldCode="DE" term="%22Iron+oxides%22">Iron oxides</searchLink><br /><searchLink fieldCode="DE" term="%22Metallic+oxides%22">Metallic oxides</searchLink><br /><searchLink fieldCode="DE" term="%22Precious+metals%22">Precious metals</searchLink><br /><searchLink fieldCode="DE" term="%22Metal+catalysts%22">Metal catalysts</searchLink><br /><searchLink fieldCode="DE" term="%22Cobalt%22">Cobalt</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: In this study, a rapid, scalable, and cost-effective method was developed for synthesizing cobalt–iron metal oxide catalysts for water electrolysis. Cobalt-iron metal oxide catalysts were synthesized using the microwave-assisted hydrothermal methods by varying the molar ratios of cobalt and iron. When the cobalt to iron ratio was 2:1, its electrolytic cell yielded the onset potential of only 1.56 V at 10 mA cm−2, which is close to the thermodynamically reversible potential. When its cell potential was at 1.8 V, the cell current density was approximately 130 mA cm−2. The results of the stability test showed a steady-state cell current density of 130 mA cm−2 and remained constant for more than 16 h at a continuous cell potential of 1.8 V. Compared with other catalysts, cobalt–iron metal oxide catalysts showed lower overpotential and lower Tafel slope than did conventional precious metal catalysts such as PtO 2 and IrO 2. Cobalt-iron metal oxide catalysts serve as an inexpensive route to large-scale commercialization through facile synthesis for enhanced electrochemical water splitting. Image 1 • Co 2 Fe 1 was synthesized by microwave assisted hydrothermal method. • Electrochemical activity of Co 2 Fe 1 for OER was studied. • Amorphous nature and particle size of Co 2 Fe 1. • Co 2 Fe 1 attains lower overpotential of 1.56 V for 10 mAcm−2 and 47.36 mV dec−1. • Co 2 Fe 1 was stable in 1 M KOH at 130 mAcm−2 for more than 16 h. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of International Journal of Hydrogen Energy is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.ijhydene.2019.02.215 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 8 StartPage: 10174 Subjects: – SubjectFull: Hydrogen evolution reactions Type: general – SubjectFull: Water electrolysis Type: general – SubjectFull: Iron oxides Type: general – SubjectFull: Metallic oxides Type: general – SubjectFull: Precious metals Type: general – SubjectFull: Metal catalysts Type: general – SubjectFull: Cobalt Type: general Titles: – TitleFull: Microwave-assisted facile synthesis of cobalt[sbnd]iron oxide nanocomposites for oxygen production using alkaline anion exchange membrane water electrolysis. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Chen, Guan-Cheng – PersonEntity: Name: NameFull: Wondimu, Tadele Hunde – PersonEntity: Name: NameFull: Huang, Hsin-Chih – PersonEntity: Name: NameFull: Wang, Kai-Chin – PersonEntity: Name: NameFull: Wang, Chen-Hao IsPartOfRelationships: – BibEntity: Dates: – D: 23 M: 04 Text: Apr2019 Type: published Y: 2019 Identifiers: – Type: issn-print Value: 03603199 Numbering: – Type: volume Value: 44 – Type: issue Value: 21 Titles: – TitleFull: International Journal of Hydrogen Energy Type: main |
| ResultId | 1 |
