Metal powder electrolysis: The shape of powder particles as a function of the exchange current density and overpotential for hydrogen evolution reaction
The short survey of the dependence of the shape of electrolytically produced powder particles on the exchange current density for metal deposition and overpotential for hydrogen evolution reaction is presented. The decrease of the exchange current density leads to a branching of dendrites and their...
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| Format: | Article |
| Language: | English |
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Serbian Chemical Society
2020-01-01
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| Series: | Journal of the Serbian Chemical Society |
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| Online Access: | http://www.doiserbia.nb.rs/img/doi/0352-5139/2020/0352-51392000006N.pdf |
| _version_ | 1819031638038806528 |
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| author | Nikolić Nebojša D. |
| author_facet | Nikolić Nebojša D. |
| author_sort | Nikolić Nebojša D. |
| collection | DOAJ |
| description | The short survey of the dependence of the shape of electrolytically produced powder particles on the exchange current density for metal deposition and overpotential for hydrogen evolution reaction is presented. The decrease of the exchange current density leads to a branching of dendrites and their transformation from needle-like and the two-dimensional (2D) fern-like to the three-dimensional (3D) pine-like shapes. Vigorous hydrogen evolution inhibits the dendritic growth leading to a formation of cauliflower-like and the spongy-like particles. The very thin needles were obtained by molten salt electrolysis. Mechanisms responsible for the formation of both the dendritic (the general theory of disperse deposits formation) and the cauliflower-like and the spongy-like particles (the concept of „effective overpotential”) were also mentioned. [Project of the Serbian Ministry of Education, Science
and Technological Development, Grant no. 172046] |
| first_indexed | 2024-12-21T06:49:13Z |
| format | Article |
| id | doaj.art-118525b1861842ee8b28265e6b8350a9 |
| institution | Directory Open Access Journal |
| issn | 0352-5139 1820-7421 |
| language | English |
| last_indexed | 2024-12-21T06:49:13Z |
| publishDate | 2020-01-01 |
| publisher | Serbian Chemical Society |
| record_format | Article |
| series | Journal of the Serbian Chemical Society |
| spelling | doaj.art-118525b1861842ee8b28265e6b8350a92022-12-21T19:12:31ZengSerbian Chemical SocietyJournal of the Serbian Chemical Society0352-51391820-74212020-01-0185334735210.2298/JSC191105006N0352-51392000006NMetal powder electrolysis: The shape of powder particles as a function of the exchange current density and overpotential for hydrogen evolution reactionNikolić Nebojša D.0ICTM-Department of Electrochemistry, University of Belgrade, Belgrade, SerbiaThe short survey of the dependence of the shape of electrolytically produced powder particles on the exchange current density for metal deposition and overpotential for hydrogen evolution reaction is presented. The decrease of the exchange current density leads to a branching of dendrites and their transformation from needle-like and the two-dimensional (2D) fern-like to the three-dimensional (3D) pine-like shapes. Vigorous hydrogen evolution inhibits the dendritic growth leading to a formation of cauliflower-like and the spongy-like particles. The very thin needles were obtained by molten salt electrolysis. Mechanisms responsible for the formation of both the dendritic (the general theory of disperse deposits formation) and the cauliflower-like and the spongy-like particles (the concept of „effective overpotential”) were also mentioned. [Project of the Serbian Ministry of Education, Science and Technological Development, Grant no. 172046]http://www.doiserbia.nb.rs/img/doi/0352-5139/2020/0352-51392000006N.pdfelectrolysispowderparticlesscanning electron microscope (sem) |
| spellingShingle | Nikolić Nebojša D. Metal powder electrolysis: The shape of powder particles as a function of the exchange current density and overpotential for hydrogen evolution reaction Journal of the Serbian Chemical Society electrolysis powder particles scanning electron microscope (sem) |
| title | Metal powder electrolysis: The shape of powder particles as a function of the exchange current density and overpotential for hydrogen evolution reaction |
| title_full | Metal powder electrolysis: The shape of powder particles as a function of the exchange current density and overpotential for hydrogen evolution reaction |
| title_fullStr | Metal powder electrolysis: The shape of powder particles as a function of the exchange current density and overpotential for hydrogen evolution reaction |
| title_full_unstemmed | Metal powder electrolysis: The shape of powder particles as a function of the exchange current density and overpotential for hydrogen evolution reaction |
| title_short | Metal powder electrolysis: The shape of powder particles as a function of the exchange current density and overpotential for hydrogen evolution reaction |
| title_sort | metal powder electrolysis the shape of powder particles as a function of the exchange current density and overpotential for hydrogen evolution reaction |
| topic | electrolysis powder particles scanning electron microscope (sem) |
| url | http://www.doiserbia.nb.rs/img/doi/0352-5139/2020/0352-51392000006N.pdf |
| work_keys_str_mv | AT nikolicnebojsad metalpowderelectrolysistheshapeofpowderparticlesasafunctionoftheexchangecurrentdensityandoverpotentialforhydrogenevolutionreaction |