Repozitorij Univerze v Novi Gorici

Izpis gradiva
A+ | A- | SLO | ENG

Naslov:Characterization of electrochemical processes in metal-organic batteries by X-ray Raman spectroscopy
Avtorji:Rajh, Ava (Avtor)
Arčon, Iztok (Avtor)
Bučar, Klemen (Avtor)
Žitnik, Matjaž (Avtor)
Petric, Marko (Avtor)
Vižintin, Alen (Avtor)
Bitenc, Jan (Avtor)
Košir, Urban (Avtor)
Dominko, Robert (Avtor)
Gretarsson, Hlynur (Avtor)
Sundermann, Martin (Avtor)
Kavčič, Matjaž (Avtor)
Datoteke:URL https://pubs.acs.org/doi/10.1021/acs.jpcc.1c10622
 
Jezik:Angleški jezik
Vrsta gradiva:Neznano ()
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:UNG - Univerza v Novi Gorici
Opis:X-ray Raman spectroscopy (XRS) is an emerging spectroscopic technique that utilizes inelastic scattering of hard Xrays to study X-ray absorption edges of low Z elements in bulk material. It was used to identify and quantify the amount of carbonyl bonds in a cathode sample, in order to track the redox reaction inside metal−organic batteries during the charge/ discharge cycle. XRS was used to record the oxygen K-edge absorption spectra of organic polymer cathodes from different multivalent metal−organic batteries. The amount of carbonyl bond in each sample was determined by modeling the oxygen K-edge XRS spectra with the linear combination of two reference compounds that mimicked the fully charged and the fully discharged phases of the battery. To interpret experimental XRS spectra, theoretical calculations of oxygen K-edge absorption spectra based on density functional theory were performed. Overall, a good agreement between the amount of carbonyl bond present during different stages of battery cycle, calculated from linear combination of standards, and the amount obtained from electrochemical characterization based on measured capacity was achieved. The electrochemical mechanism in all studied batteries was confirmed to be a reduction of double carbonyl bond and the intermediate anion was identified with the help of theoretical calculations. X-ray Raman spectroscopy of the oxygen K-edge was shown to be a viable characterization technique for accurate tracking of the redox reaction inside metal−organic batteries.
Ključne besede:X-ray Raman spectroscopy, meta-organic batteries, oxygen K-edge XANES, electrochemical processes
Leto izida:2022
Št. strani:str. 1-8
Številčenje:iss. , Vol.
COBISS_ID:102127363 Povezava se odpre v novem oknu
UDK:53
ISSN pri članku:1932-7455
URN:URN:SI:UNG:REP:LQ4QMGWM
DOI:10.1021/acs.jpcc.1c10622 Povezava se odpre v novem oknu
Licenca:CC BY-NC-ND 4.0
To delo je dosegljivo pod licenco Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
Število ogledov:777
Število prenosov:12
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
Področja:Gradivo ni uvrščeno v področja.
:
  
Skupna ocena:(0 glasov)
Vaša ocena:Ocenjevanje je dovoljeno samo prijavljenim uporabnikom.

Postavite miškin kazalec na naslov za izpis povzetka. Klik na naslov izpiše podrobnosti ali sproži prenos.

Gradivo je del revije

Naslov:Journal of physical chemistry
Skrajšan naslov:J. phys. chem. C,
Založnik:American Chemical Society
ISSN:1932-7455
COBISS.SI-ID:513576217 Novo okno

Nazaj