W dniach od 2 kwietnia do 5 kwietnia 2024 r. prowadzone będą prace związane z wdrożeniem nowej wersji systemu Repozytorium UJ. Nie będzie możliwe wprowadzanie nowych informacji do repozytorium. Za utrudnienia przepraszamy.
Morphology and electrical conductivity of carbon nanocoatings prepared from pyrolysed polymers
pl
dc.type
JournalArticle
pl
dc.identifier.weblink
https://www.hindawi.com/journals/jnm/2014/103418/
pl
dc.abstract.en
Conductive carbon nanocoatings (conductive carbon layers-CCL) were formed on \alpha-Al_{2}O_{3} model support using three different polymer precursors and deposition methods. This was done in an effort to improve electrical conductivity of the material through creating the appropriate morphology of the carbon layers. The best electrical properties were obtained with use of a precursor that consisted of poly-N-vinylformamide modified with pyromellitic acid (PMA). We demonstrate that these properties originate from a specific morphology of this layer that showed nanopores (3-4 nm) capable of assuring easy pathways for ion transport in real electrode materials. The proposed, water mediated, method of carbon coating of powdered supports combines coating from solution and solid phase and is easy to scale up process. The optimal polymer carbon precursor composition was used to prepare conductive carbon nanocoatings on LiFePO_{4} cathode material. Charge-discharge tests clearly show that C/LiFePO_{4} composites obtained using poly-N-vinylformamide modified with pyromellitic acid exhibit higher rechargeable capacity and longer working time in a battery cell than standard carbon/lithium iron phosphate composites.
pl
dc.description.volume
2014
pl
dc.identifier.doi
10.1155/2014/103418
pl
dc.identifier.eissn
1687-4129
pl
dc.title.journal
Journal of Nanomaterials
pl
dc.language.container
eng
pl
dc.date.accession
2019-02-13
pl
dc.affiliation
Wydział Chemii : Zakład Technologii Chemicznej
pl
dc.subtype
Article
pl
dc.identifier.articleid
103418
pl
dc.rights.original
CC-BY; otwarte czasopismo; ostateczna wersja wydawcy; w momencie opublikowania; 0;