Rational construction of N-containing carbon sheets atomically doped NiP-CoP nanohybrid electrocatalysts for enhanced green hydrogen and oxygen production
<p dir="ltr">The pursuit of sustainable energy production has directed rigorous research in the field of electrocatalysis, particularly for water electrolysis (i.e., hydrogen evolution (HER) and oxygen evolution reactions (OER)). This study discloses the rational synthesis of N-conta...
محفوظ في:
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| مؤلفون آخرون: | , , , |
| منشور في: |
2024
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إضافة وسم
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| _version_ | 1864513540025483264 |
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| author | Adewale K. Ipadeola (12699590) |
| author2 | Mostafa H. Sliem (6316958) Patrick Mwonga (11468339) Kenneth I. Ozoemena (1924591) Aboubakr M. Abdullah (1505017) |
| author2_role | author author author author |
| author_facet | Adewale K. Ipadeola (12699590) Mostafa H. Sliem (6316958) Patrick Mwonga (11468339) Kenneth I. Ozoemena (1924591) Aboubakr M. Abdullah (1505017) |
| author_role | author |
| dc.creator.none.fl_str_mv | Adewale K. Ipadeola (12699590) Mostafa H. Sliem (6316958) Patrick Mwonga (11468339) Kenneth I. Ozoemena (1924591) Aboubakr M. Abdullah (1505017) |
| dc.date.none.fl_str_mv | 2024-10-24T09:00:00Z |
| dc.identifier.none.fl_str_mv | 10.1016/j.electacta.2024.145236 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/journal_contribution/Rational_construction_of_N-containing_carbon_sheets_atomically_doped_NiP-CoP_nanohybrid_electrocatalysts_for_enhanced_green_hydrogen_and_oxygen_production/30094834 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Chemical sciences Physical chemistry Engineering Materials engineering Nanotechnology N-containing carbon composites Hydrogen evolution reaction Oxygen evolution reaction Tafel slope Exchange current density H2/O2 production rate |
| dc.title.none.fl_str_mv | Rational construction of N-containing carbon sheets atomically doped NiP-CoP nanohybrid electrocatalysts for enhanced green hydrogen and oxygen production |
| dc.type.none.fl_str_mv | Text Journal contribution info:eu-repo/semantics/publishedVersion text contribution to journal |
| description | <p dir="ltr">The pursuit of sustainable energy production has directed rigorous research in the field of electrocatalysis, particularly for water electrolysis (i.e., hydrogen evolution (HER) and oxygen evolution reactions (OER)). This study discloses the rational synthesis of N-containing carbon sheets atomically doped NiP-CoP nanohybrid (NiP-CoP/NCS) via precipitation/calcination. The fabrication method tailored the physicochemical merits for collective contribution to improved green hydrogen and oxygen production, elucidated by surface/bulk characterization and theoretical calculations. Thus, the NiP-CoP/NCS had improved HER activity at lower overpotential (<i>ƞ</i><sub>10</sub><i> </i>= 197.7/274.6 mV), higher exchange current density (j<sub>o</sub> = 0.71/0.67 mA/cm<sup>2</sup>), turnover frequency (TOF = 2.63/1.47 s<sup>-1</sup>), H<sub>2 </sub>production rate (3601.63/2519.12 µmol/g/h) and superior stability after 24 h in acid/alkaline media, than NiP/NCS and CoP/NCS. Moreover, NiP-CoP/NCS delivered impressive OER activity at reduced <i>ƞ</i><sub>10</sub> (309.1 mV), and Tafel slope (b<sub>a</sub> = 58.9 ± 3.0 mV/dec), but higher TOF (3.67 s<sup>-1</sup>) and O<sub>2</sub> production rate (3643.96 µmol/g/h) relative to NiP/NCS and CoP/NCS, besides higher stability for 24 h. These were further proved by theoretical calculations. This work indicates a deeper understanding of the fabrication methods of making efficient electrocatalysts for green and sustainable energy conversion.</p><h2>Other Information</h2><p dir="ltr">Published in: Electrochimica Acta<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.electacta.2024.145236" target="_blank">https://dx.doi.org/10.1016/j.electacta.2024.145236</a></p> |
| eu_rights_str_mv | openAccess |
| id | Manara2_05d053dbc8b73f4128c828a50d471113 |
| identifier_str_mv | 10.1016/j.electacta.2024.145236 |
| network_acronym_str | Manara2 |
| network_name_str | Manara2 |
| oai_identifier_str | oai:figshare.com:article/30094834 |
| publishDate | 2024 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Rational construction of N-containing carbon sheets atomically doped NiP-CoP nanohybrid electrocatalysts for enhanced green hydrogen and oxygen productionAdewale K. Ipadeola (12699590)Mostafa H. Sliem (6316958)Patrick Mwonga (11468339)Kenneth I. Ozoemena (1924591)Aboubakr M. Abdullah (1505017)Chemical sciencesPhysical chemistryEngineeringMaterials engineeringNanotechnologyN-containing carbon compositesHydrogen evolution reactionOxygen evolution reactionTafel slopeExchange current densityH2/O2 production rate<p dir="ltr">The pursuit of sustainable energy production has directed rigorous research in the field of electrocatalysis, particularly for water electrolysis (i.e., hydrogen evolution (HER) and oxygen evolution reactions (OER)). This study discloses the rational synthesis of N-containing carbon sheets atomically doped NiP-CoP nanohybrid (NiP-CoP/NCS) via precipitation/calcination. The fabrication method tailored the physicochemical merits for collective contribution to improved green hydrogen and oxygen production, elucidated by surface/bulk characterization and theoretical calculations. Thus, the NiP-CoP/NCS had improved HER activity at lower overpotential (<i>ƞ</i><sub>10</sub><i> </i>= 197.7/274.6 mV), higher exchange current density (j<sub>o</sub> = 0.71/0.67 mA/cm<sup>2</sup>), turnover frequency (TOF = 2.63/1.47 s<sup>-1</sup>), H<sub>2 </sub>production rate (3601.63/2519.12 µmol/g/h) and superior stability after 24 h in acid/alkaline media, than NiP/NCS and CoP/NCS. Moreover, NiP-CoP/NCS delivered impressive OER activity at reduced <i>ƞ</i><sub>10</sub> (309.1 mV), and Tafel slope (b<sub>a</sub> = 58.9 ± 3.0 mV/dec), but higher TOF (3.67 s<sup>-1</sup>) and O<sub>2</sub> production rate (3643.96 µmol/g/h) relative to NiP/NCS and CoP/NCS, besides higher stability for 24 h. These were further proved by theoretical calculations. This work indicates a deeper understanding of the fabrication methods of making efficient electrocatalysts for green and sustainable energy conversion.</p><h2>Other Information</h2><p dir="ltr">Published in: Electrochimica Acta<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.electacta.2024.145236" target="_blank">https://dx.doi.org/10.1016/j.electacta.2024.145236</a></p>2024-10-24T09:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.1016/j.electacta.2024.145236https://figshare.com/articles/journal_contribution/Rational_construction_of_N-containing_carbon_sheets_atomically_doped_NiP-CoP_nanohybrid_electrocatalysts_for_enhanced_green_hydrogen_and_oxygen_production/30094834CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/300948342024-10-24T09:00:00Z |
| spellingShingle | Rational construction of N-containing carbon sheets atomically doped NiP-CoP nanohybrid electrocatalysts for enhanced green hydrogen and oxygen production Adewale K. Ipadeola (12699590) Chemical sciences Physical chemistry Engineering Materials engineering Nanotechnology N-containing carbon composites Hydrogen evolution reaction Oxygen evolution reaction Tafel slope Exchange current density H2/O2 production rate |
| status_str | publishedVersion |
| title | Rational construction of N-containing carbon sheets atomically doped NiP-CoP nanohybrid electrocatalysts for enhanced green hydrogen and oxygen production |
| title_full | Rational construction of N-containing carbon sheets atomically doped NiP-CoP nanohybrid electrocatalysts for enhanced green hydrogen and oxygen production |
| title_fullStr | Rational construction of N-containing carbon sheets atomically doped NiP-CoP nanohybrid electrocatalysts for enhanced green hydrogen and oxygen production |
| title_full_unstemmed | Rational construction of N-containing carbon sheets atomically doped NiP-CoP nanohybrid electrocatalysts for enhanced green hydrogen and oxygen production |
| title_short | Rational construction of N-containing carbon sheets atomically doped NiP-CoP nanohybrid electrocatalysts for enhanced green hydrogen and oxygen production |
| title_sort | Rational construction of N-containing carbon sheets atomically doped NiP-CoP nanohybrid electrocatalysts for enhanced green hydrogen and oxygen production |
| topic | Chemical sciences Physical chemistry Engineering Materials engineering Nanotechnology N-containing carbon composites Hydrogen evolution reaction Oxygen evolution reaction Tafel slope Exchange current density H2/O2 production rate |