Promising aqueous dispersions of carbon black for semisolid flow battery application
<p>In this systematic study, we attempt to thoroughly understand the aggregation mechanism of conductive carbon black in aqueous dispersing medium and optimize the formulation of suspension electrodes for aqueous sodium–ion semisolid flow battery applications. For the first time, we present br...
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2022
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| _version_ | 1864513536187695104 |
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| author | Mentallah Meslam (17562642) |
| author2 | Ahmed A. Elzatahry (1551847) Mohamed Youssry (14158971) |
| author2_role | author author |
| author_facet | Mentallah Meslam (17562642) Ahmed A. Elzatahry (1551847) Mohamed Youssry (14158971) |
| author_role | author |
| dc.creator.none.fl_str_mv | Mentallah Meslam (17562642) Ahmed A. Elzatahry (1551847) Mohamed Youssry (14158971) |
| dc.date.none.fl_str_mv | 2022-09-05T03:00:00Z |
| dc.identifier.none.fl_str_mv | 10.1016/j.colsurfa.2022.129376 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/journal_contribution/Promising_aqueous_dispersions_of_carbon_black_for_semisolid_flow_battery_application/24745110 |
| 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 Carbon black Aqueous dispersions Suspension electrode Rheo-electrical properties Semisolid flow battery |
| dc.title.none.fl_str_mv | Promising aqueous dispersions of carbon black for semisolid flow battery application |
| dc.type.none.fl_str_mv | Text Journal contribution info:eu-repo/semantics/publishedVersion text contribution to journal |
| description | <p>In this systematic study, we attempt to thoroughly understand the aggregation mechanism of conductive carbon black in aqueous dispersing medium and optimize the formulation of suspension electrodes for aqueous sodium–ion semisolid flow battery applications. For the first time, we present branched micelle solution as an electrolyte that introduces the widest electrochemical stability window of 3.5 V, from –3 to + 0.5 V vs. Ag/AgCl, with relatively low viscosity, rendering it as promising aqueous dispersing medium for suspension electrodes (anolytes). The simultaneous rheo-electrical measurements revealed that the aggregation of conductive ketjenblack (KB) particles was controlled by the electrostatic repulsion forces that doubly originate from the inter-aggregate soft interaction and bulk micelle interactions. This remarkable interaction rendered the dispersions electrically percolated at low carbon content (0.9 wt%) and importantly able to conserve the electrical conductivity under extremely high shear rates. Under the quiescent conditions, the percolated KB dispersion could sustain higher load of active material (up to 30 wt% Na2Ti3O7 as an active material) without severe influence on the rigidity (rheological plateau modulus G 0) and electrical conductivity (Σ) of the suspensions. These promising findings propound further investigation for the electrochemical performance of these aqueous sodium–ion suspension electrodes under flow conditions.</p><h2>Other Information</h2> <p> Published in: Colloids and Surfaces A: Physicochemical and Engineering Aspects<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.colsurfa.2022.129376" target="_blank">https://dx.doi.org/10.1016/j.colsurfa.2022.129376</a></p> |
| eu_rights_str_mv | openAccess |
| id | Manara2_fa048de86e7ccd35974d8ce4e5334105 |
| identifier_str_mv | 10.1016/j.colsurfa.2022.129376 |
| network_acronym_str | Manara2 |
| network_name_str | Manara2 |
| oai_identifier_str | oai:figshare.com:article/24745110 |
| publishDate | 2022 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Promising aqueous dispersions of carbon black for semisolid flow battery applicationMentallah Meslam (17562642)Ahmed A. Elzatahry (1551847)Mohamed Youssry (14158971)Chemical sciencesPhysical chemistryEngineeringMaterials engineeringCarbon blackAqueous dispersionsSuspension electrodeRheo-electrical propertiesSemisolid flow battery<p>In this systematic study, we attempt to thoroughly understand the aggregation mechanism of conductive carbon black in aqueous dispersing medium and optimize the formulation of suspension electrodes for aqueous sodium–ion semisolid flow battery applications. For the first time, we present branched micelle solution as an electrolyte that introduces the widest electrochemical stability window of 3.5 V, from –3 to + 0.5 V vs. Ag/AgCl, with relatively low viscosity, rendering it as promising aqueous dispersing medium for suspension electrodes (anolytes). The simultaneous rheo-electrical measurements revealed that the aggregation of conductive ketjenblack (KB) particles was controlled by the electrostatic repulsion forces that doubly originate from the inter-aggregate soft interaction and bulk micelle interactions. This remarkable interaction rendered the dispersions electrically percolated at low carbon content (0.9 wt%) and importantly able to conserve the electrical conductivity under extremely high shear rates. Under the quiescent conditions, the percolated KB dispersion could sustain higher load of active material (up to 30 wt% Na2Ti3O7 as an active material) without severe influence on the rigidity (rheological plateau modulus G 0) and electrical conductivity (Σ) of the suspensions. These promising findings propound further investigation for the electrochemical performance of these aqueous sodium–ion suspension electrodes under flow conditions.</p><h2>Other Information</h2> <p> Published in: Colloids and Surfaces A: Physicochemical and Engineering Aspects<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.colsurfa.2022.129376" target="_blank">https://dx.doi.org/10.1016/j.colsurfa.2022.129376</a></p>2022-09-05T03:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.1016/j.colsurfa.2022.129376https://figshare.com/articles/journal_contribution/Promising_aqueous_dispersions_of_carbon_black_for_semisolid_flow_battery_application/24745110CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/247451102022-09-05T03:00:00Z |
| spellingShingle | Promising aqueous dispersions of carbon black for semisolid flow battery application Mentallah Meslam (17562642) Chemical sciences Physical chemistry Engineering Materials engineering Carbon black Aqueous dispersions Suspension electrode Rheo-electrical properties Semisolid flow battery |
| status_str | publishedVersion |
| title | Promising aqueous dispersions of carbon black for semisolid flow battery application |
| title_full | Promising aqueous dispersions of carbon black for semisolid flow battery application |
| title_fullStr | Promising aqueous dispersions of carbon black for semisolid flow battery application |
| title_full_unstemmed | Promising aqueous dispersions of carbon black for semisolid flow battery application |
| title_short | Promising aqueous dispersions of carbon black for semisolid flow battery application |
| title_sort | Promising aqueous dispersions of carbon black for semisolid flow battery application |
| topic | Chemical sciences Physical chemistry Engineering Materials engineering Carbon black Aqueous dispersions Suspension electrode Rheo-electrical properties Semisolid flow battery |