Microwave Assisted Synthesis of Chromium Substituted Nickel Ferrite Spinel for Oxygen Evolution Reaction
Herein, a simple microwave assisted combustion approach is utilized for the synthesis of nano-sized Cr substituted Ni ferrites (NiCrxFe2-xO4). The as obtained materials were further sintered at 450°C in air and then utilized for physicochemical and electrochemical characterizations. X-ray diffracti...
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| Format: | Article |
| Language: | English |
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Universidade Federal de Mato Grosso do Sul
2020-09-01
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| Series: | Orbital: The Electronic Journal of Chemistry |
| Subjects: | |
| Online Access: | https://periodicos.ufms.br/index.php/orbital/article/view/15739 |
| _version_ | 1797946865904254976 |
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| author | Basant Lal Pankaj Kumar Rastogi |
| author_facet | Basant Lal Pankaj Kumar Rastogi |
| author_sort | Basant Lal |
| collection | DOAJ |
| description |
Herein, a simple microwave assisted combustion approach is utilized for the synthesis of nano-sized Cr substituted Ni ferrites (NiCrxFe2-xO4). The as obtained materials were further sintered at 450°C in air and then utilized for physicochemical and electrochemical characterizations. X-ray diffraction (XRD) patterns showing sharp peaks confirmed the formation of single phase cubic spinel structure. TEM image reveals the formation of nanocrystalline particles having size in range of 10-20 nm. Further, the electrocatalytic oxygen evolution reaction (OER) of as-synthesized materials was studied by linear sweep voltammetry in alkaline solution. The OER results showed that co-substitution of Cr in NiFe2O4 matrix improved the electrocatalytic activity of the oxides towards OER. The NiCr0.5Fe1.5O4 shows the best OER performance in 1.0 M KOH solution. It achieved a low overpotential of about 320 mV at 10 mA/cm2 current density, which is comparable to other reported electrocatalysts. Tafel parameters and order of reaction were also in close agreements with literature values.
DOI: http://dx.doi.org/10.17807/orbital.v12i3.1507
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| first_indexed | 2024-04-10T21:17:49Z |
| format | Article |
| id | doaj.art-be14a7bd6a1b48b8987eea04a3f9c3db |
| institution | Directory Open Access Journal |
| issn | 1984-6428 |
| language | English |
| last_indexed | 2024-04-10T21:17:49Z |
| publishDate | 2020-09-01 |
| publisher | Universidade Federal de Mato Grosso do Sul |
| record_format | Article |
| series | Orbital: The Electronic Journal of Chemistry |
| spelling | doaj.art-be14a7bd6a1b48b8987eea04a3f9c3db2023-01-20T10:50:20ZengUniversidade Federal de Mato Grosso do SulOrbital: The Electronic Journal of Chemistry1984-64282020-09-01123Microwave Assisted Synthesis of Chromium Substituted Nickel Ferrite Spinel for Oxygen Evolution ReactionBasant Lal0Pankaj Kumar Rastogi1Department of Chemistry, Institute of Applied Science and Humanities, GLA University, MathuraDepartment of Chemistry, Institute of Applied Science and Humanities, GLA University, Mathura Herein, a simple microwave assisted combustion approach is utilized for the synthesis of nano-sized Cr substituted Ni ferrites (NiCrxFe2-xO4). The as obtained materials were further sintered at 450°C in air and then utilized for physicochemical and electrochemical characterizations. X-ray diffraction (XRD) patterns showing sharp peaks confirmed the formation of single phase cubic spinel structure. TEM image reveals the formation of nanocrystalline particles having size in range of 10-20 nm. Further, the electrocatalytic oxygen evolution reaction (OER) of as-synthesized materials was studied by linear sweep voltammetry in alkaline solution. The OER results showed that co-substitution of Cr in NiFe2O4 matrix improved the electrocatalytic activity of the oxides towards OER. The NiCr0.5Fe1.5O4 shows the best OER performance in 1.0 M KOH solution. It achieved a low overpotential of about 320 mV at 10 mA/cm2 current density, which is comparable to other reported electrocatalysts. Tafel parameters and order of reaction were also in close agreements with literature values. DOI: http://dx.doi.org/10.17807/orbital.v12i3.1507 https://periodicos.ufms.br/index.php/orbital/article/view/15739spinelnickel ferritemicrowaveelectrocatalysisoxygen evolution reaction |
| spellingShingle | Basant Lal Pankaj Kumar Rastogi Microwave Assisted Synthesis of Chromium Substituted Nickel Ferrite Spinel for Oxygen Evolution Reaction Orbital: The Electronic Journal of Chemistry spinel nickel ferrite microwave electrocatalysis oxygen evolution reaction |
| title | Microwave Assisted Synthesis of Chromium Substituted Nickel Ferrite Spinel for Oxygen Evolution Reaction |
| title_full | Microwave Assisted Synthesis of Chromium Substituted Nickel Ferrite Spinel for Oxygen Evolution Reaction |
| title_fullStr | Microwave Assisted Synthesis of Chromium Substituted Nickel Ferrite Spinel for Oxygen Evolution Reaction |
| title_full_unstemmed | Microwave Assisted Synthesis of Chromium Substituted Nickel Ferrite Spinel for Oxygen Evolution Reaction |
| title_short | Microwave Assisted Synthesis of Chromium Substituted Nickel Ferrite Spinel for Oxygen Evolution Reaction |
| title_sort | microwave assisted synthesis of chromium substituted nickel ferrite spinel for oxygen evolution reaction |
| topic | spinel nickel ferrite microwave electrocatalysis oxygen evolution reaction |
| url | https://periodicos.ufms.br/index.php/orbital/article/view/15739 |
| work_keys_str_mv | AT basantlal microwaveassistedsynthesisofchromiumsubstitutednickelferritespinelforoxygenevolutionreaction AT pankajkumarrastogi microwaveassistedsynthesisofchromiumsubstitutednickelferritespinelforoxygenevolutionreaction |