Electrochemical characterisation of Co@Co(OH)(2) core-shell nanoparticles and their aggregation in solution
Core-shell Co@Co(OH)2 nanoparticles are characterised electrochemically with particular focus on the thin shell of cobalt (II) hydroxide which stabilises the metallic cobalt core against further oxidation in the presence of air. Voltammetric characterisation allows insights into the nature of the sh...
| Main Authors: | , , , , |
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| Format: | Journal article |
| Language: | English |
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Wiley
2020
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| _version_ | 1797090534100041728 |
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| author | Xie, R-C Batchelor-McAuley, C Rauwel, E Rauwel, P Compton, RG |
| author_facet | Xie, R-C Batchelor-McAuley, C Rauwel, E Rauwel, P Compton, RG |
| author_sort | Xie, R-C |
| collection | OXFORD |
| description | Core-shell Co@Co(OH)2 nanoparticles are characterised electrochemically with particular focus on the thin shell of cobalt (II) hydroxide which stabilises the metallic cobalt core against further oxidation in the presence of air. Voltammetric characterisation allows insights into the nature of the shell so both complementing and providing information unavailable using electron microscopy and X-ray diffraction. Moreover, the electrode reactions, occurring at particle ensembles, of the further oxidation of surface Co(OH)2 to CoOOH under alkaline conditions are further evidenced at the single particle level using electrochemical particle-electrode impacts (or ‘nano-impacts’). On this basis, the large extent of particle agglomeration/aggregation of Co@Co(OH)2 nanoparticles while suspended in the solutions is inferred. |
| first_indexed | 2024-03-07T03:20:00Z |
| format | Journal article |
| id | oxford-uuid:b71c8ec4-7020-416e-af39-6e36ac9dad1c |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T03:20:00Z |
| publishDate | 2020 |
| publisher | Wiley |
| record_format | dspace |
| spelling | oxford-uuid:b71c8ec4-7020-416e-af39-6e36ac9dad1c2022-03-27T04:46:06ZElectrochemical characterisation of Co@Co(OH)(2) core-shell nanoparticles and their aggregation in solution Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:b71c8ec4-7020-416e-af39-6e36ac9dad1cEnglishSymplectic ElementsWiley2020Xie, R-CBatchelor-McAuley, CRauwel, ERauwel, PCompton, RGCore-shell Co@Co(OH)2 nanoparticles are characterised electrochemically with particular focus on the thin shell of cobalt (II) hydroxide which stabilises the metallic cobalt core against further oxidation in the presence of air. Voltammetric characterisation allows insights into the nature of the shell so both complementing and providing information unavailable using electron microscopy and X-ray diffraction. Moreover, the electrode reactions, occurring at particle ensembles, of the further oxidation of surface Co(OH)2 to CoOOH under alkaline conditions are further evidenced at the single particle level using electrochemical particle-electrode impacts (or ‘nano-impacts’). On this basis, the large extent of particle agglomeration/aggregation of Co@Co(OH)2 nanoparticles while suspended in the solutions is inferred. |
| spellingShingle | Xie, R-C Batchelor-McAuley, C Rauwel, E Rauwel, P Compton, RG Electrochemical characterisation of Co@Co(OH)(2) core-shell nanoparticles and their aggregation in solution |
| title | Electrochemical characterisation of Co@Co(OH)(2) core-shell nanoparticles and their aggregation in solution |
| title_full | Electrochemical characterisation of Co@Co(OH)(2) core-shell nanoparticles and their aggregation in solution |
| title_fullStr | Electrochemical characterisation of Co@Co(OH)(2) core-shell nanoparticles and their aggregation in solution |
| title_full_unstemmed | Electrochemical characterisation of Co@Co(OH)(2) core-shell nanoparticles and their aggregation in solution |
| title_short | Electrochemical characterisation of Co@Co(OH)(2) core-shell nanoparticles and their aggregation in solution |
| title_sort | electrochemical characterisation of co co oh 2 core shell nanoparticles and their aggregation in solution |
| work_keys_str_mv | AT xierc electrochemicalcharacterisationofcocooh2coreshellnanoparticlesandtheiraggregationinsolution AT batchelormcauleyc electrochemicalcharacterisationofcocooh2coreshellnanoparticlesandtheiraggregationinsolution AT rauwele electrochemicalcharacterisationofcocooh2coreshellnanoparticlesandtheiraggregationinsolution AT rauwelp electrochemicalcharacterisationofcocooh2coreshellnanoparticlesandtheiraggregationinsolution AT comptonrg electrochemicalcharacterisationofcocooh2coreshellnanoparticlesandtheiraggregationinsolution |