Unveiling the electrochemical CO oxidation activity on support-free porous PdM (M = Fe, Co, Ni) foam-like nanocrystals over a wide pH range
<p dir="ltr">Binary PdM-based nanocrystals are efficient electrocatalysts for a wide range of renewable and green fuel cell applications; however, their poisoning by CO is a great barrier for commercialization, so it is pivotal to solve this issue. Herein, we fabricated support-free...
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| مؤلفون آخرون: | , , , , , , |
| منشور في: |
2023
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| الموضوعات: | |
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| _version_ | 1864513529478905856 |
|---|---|
| author | Belal Salah (14150460) |
| author2 | Adewale K. Ipadeola (12699590) Aslam Khan (2051275) Qingqing Lu (6160103) Yassmin Ibrahim (17821160) Ebrima L Darboe (17821163) Aboubakr M. Abdullah (1505017) Kamel Eid (1542562) |
| author2_role | author author author author author author author |
| author_facet | Belal Salah (14150460) Adewale K. Ipadeola (12699590) Aslam Khan (2051275) Qingqing Lu (6160103) Yassmin Ibrahim (17821160) Ebrima L Darboe (17821163) Aboubakr M. Abdullah (1505017) Kamel Eid (1542562) |
| author_role | author |
| dc.creator.none.fl_str_mv | Belal Salah (14150460) Adewale K. Ipadeola (12699590) Aslam Khan (2051275) Qingqing Lu (6160103) Yassmin Ibrahim (17821160) Ebrima L Darboe (17821163) Aboubakr M. Abdullah (1505017) Kamel Eid (1542562) |
| dc.date.none.fl_str_mv | 2023-10-01T00:00:00Z |
| dc.identifier.none.fl_str_mv | 10.1016/j.ecmx.2023.100449 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/journal_contribution/Unveiling_the_electrochemical_CO_oxidation_activity_on_support-free_porous_PdM_M_Fe_Co_Ni_foam-like_nanocrystals_over_a_wide_pH_range/25036550 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Chemical sciences Macromolecular and materials chemistry Physical chemistry Engineering Chemical engineering Nanotechnology Binary PdM nanocrystals Porous Pd-based catalysts Electrocatalytic carbon monoxide oxidation Alcohol fuel cell Electrocatalysts CO-poisoning |
| dc.title.none.fl_str_mv | Unveiling the electrochemical CO oxidation activity on support-free porous PdM (M = Fe, Co, Ni) foam-like nanocrystals over a wide pH range |
| dc.type.none.fl_str_mv | Text Journal contribution info:eu-repo/semantics/publishedVersion text contribution to journal |
| description | <p dir="ltr">Binary PdM-based nanocrystals are efficient electrocatalysts for a wide range of renewable and green fuel cell applications; however, their poisoning by CO is a great barrier for commercialization, so it is pivotal to solve this issue. Herein, we fabricated support-free PdM alloys (M = Fe, Co, and Ni) by a prompt one-step aqueous-solution co-reduction with sodium borohydride driven by the coalescence growth mechanism. This forms support-free PdM porous foam-like nanostructures with well-defined compositions from the ICP-OES analysis and clean surface without any hazardous chemicals or multiple reaction steps. The as-prepared PdM foam-like nanostructures were demonstrated for carbon monoxide oxidation (CO<sub>Oxid</sub>) electrocatalysis at varied electrolyte pH compared with commercial Pd/C catalyst. The foam-like PdFe nanocrystals achieved an excellent electrochemical CO<sub>Oxid </sub>activity that was at least 2.18-times of PdCo, 4.35-times of PdNi, and 1.56-times of Pd/C in both alkaline (KOH) and acidic (HClO<sub>4</sub>) electrolytes, but PdCo was the best in neutral (NaHCO<sub>3</sub>) medium. The superior activity of PdM is due to the strain and alloying effect, which promoted the superb CO oxidation durability for 1000 cycles than Pd/C catalyst. This study demonstrated the superiority of support-free bimetallic PdM alloys than Pd/C catalyst in all electrolytes, which may open new gates for understanding CO-poisoning in alcohol-based fuel cells.</p><h2>Other Information</h2><p dir="ltr">Published in: Energy Conversion and Management: X<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.ecmx.2023.100449" target="_blank">https://dx.doi.org/10.1016/j.ecmx.2023.100449</a></p> |
| eu_rights_str_mv | openAccess |
| id | Manara2_833e45a6b1d1f36bc6ecf53e14df4372 |
| identifier_str_mv | 10.1016/j.ecmx.2023.100449 |
| network_acronym_str | Manara2 |
| network_name_str | Manara2 |
| oai_identifier_str | oai:figshare.com:article/25036550 |
| publishDate | 2023 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Unveiling the electrochemical CO oxidation activity on support-free porous PdM (M = Fe, Co, Ni) foam-like nanocrystals over a wide pH rangeBelal Salah (14150460)Adewale K. Ipadeola (12699590)Aslam Khan (2051275)Qingqing Lu (6160103)Yassmin Ibrahim (17821160)Ebrima L Darboe (17821163)Aboubakr M. Abdullah (1505017)Kamel Eid (1542562)Chemical sciencesMacromolecular and materials chemistryPhysical chemistryEngineeringChemical engineeringNanotechnologyBinary PdM nanocrystalsPorous Pd-based catalystsElectrocatalytic carbon monoxide oxidationAlcohol fuel cellElectrocatalystsCO-poisoning<p dir="ltr">Binary PdM-based nanocrystals are efficient electrocatalysts for a wide range of renewable and green fuel cell applications; however, their poisoning by CO is a great barrier for commercialization, so it is pivotal to solve this issue. Herein, we fabricated support-free PdM alloys (M = Fe, Co, and Ni) by a prompt one-step aqueous-solution co-reduction with sodium borohydride driven by the coalescence growth mechanism. This forms support-free PdM porous foam-like nanostructures with well-defined compositions from the ICP-OES analysis and clean surface without any hazardous chemicals or multiple reaction steps. The as-prepared PdM foam-like nanostructures were demonstrated for carbon monoxide oxidation (CO<sub>Oxid</sub>) electrocatalysis at varied electrolyte pH compared with commercial Pd/C catalyst. The foam-like PdFe nanocrystals achieved an excellent electrochemical CO<sub>Oxid </sub>activity that was at least 2.18-times of PdCo, 4.35-times of PdNi, and 1.56-times of Pd/C in both alkaline (KOH) and acidic (HClO<sub>4</sub>) electrolytes, but PdCo was the best in neutral (NaHCO<sub>3</sub>) medium. The superior activity of PdM is due to the strain and alloying effect, which promoted the superb CO oxidation durability for 1000 cycles than Pd/C catalyst. This study demonstrated the superiority of support-free bimetallic PdM alloys than Pd/C catalyst in all electrolytes, which may open new gates for understanding CO-poisoning in alcohol-based fuel cells.</p><h2>Other Information</h2><p dir="ltr">Published in: Energy Conversion and Management: X<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.ecmx.2023.100449" target="_blank">https://dx.doi.org/10.1016/j.ecmx.2023.100449</a></p>2023-10-01T00:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.1016/j.ecmx.2023.100449https://figshare.com/articles/journal_contribution/Unveiling_the_electrochemical_CO_oxidation_activity_on_support-free_porous_PdM_M_Fe_Co_Ni_foam-like_nanocrystals_over_a_wide_pH_range/25036550CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/250365502023-10-01T00:00:00Z |
| spellingShingle | Unveiling the electrochemical CO oxidation activity on support-free porous PdM (M = Fe, Co, Ni) foam-like nanocrystals over a wide pH range Belal Salah (14150460) Chemical sciences Macromolecular and materials chemistry Physical chemistry Engineering Chemical engineering Nanotechnology Binary PdM nanocrystals Porous Pd-based catalysts Electrocatalytic carbon monoxide oxidation Alcohol fuel cell Electrocatalysts CO-poisoning |
| status_str | publishedVersion |
| title | Unveiling the electrochemical CO oxidation activity on support-free porous PdM (M = Fe, Co, Ni) foam-like nanocrystals over a wide pH range |
| title_full | Unveiling the electrochemical CO oxidation activity on support-free porous PdM (M = Fe, Co, Ni) foam-like nanocrystals over a wide pH range |
| title_fullStr | Unveiling the electrochemical CO oxidation activity on support-free porous PdM (M = Fe, Co, Ni) foam-like nanocrystals over a wide pH range |
| title_full_unstemmed | Unveiling the electrochemical CO oxidation activity on support-free porous PdM (M = Fe, Co, Ni) foam-like nanocrystals over a wide pH range |
| title_short | Unveiling the electrochemical CO oxidation activity on support-free porous PdM (M = Fe, Co, Ni) foam-like nanocrystals over a wide pH range |
| title_sort | Unveiling the electrochemical CO oxidation activity on support-free porous PdM (M = Fe, Co, Ni) foam-like nanocrystals over a wide pH range |
| topic | Chemical sciences Macromolecular and materials chemistry Physical chemistry Engineering Chemical engineering Nanotechnology Binary PdM nanocrystals Porous Pd-based catalysts Electrocatalytic carbon monoxide oxidation Alcohol fuel cell Electrocatalysts CO-poisoning |