Pretražite po imenu i prezimenu autora, mentora, urednika, prevoditelja

Napredna pretraga

Pregled bibliografske jedinice broj: 1053391

Low potassium mobility in iron pyrophosphate glasses


Pavić, Luka; Krivačić, Sara; Moguš-Milanković, Andrea; Šantić, Ana
Low potassium mobility in iron pyrophosphate glasses // Journal of non-crystalline solids, 535 (2020), 119969, 6 doi:10.1016/j.jnoncrysol.2020.119969 (međunarodna recenzija, članak, znanstveni)


CROSBI ID: 1053391 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Low potassium mobility in iron pyrophosphate glasses

Autori
Pavić, Luka ; Krivačić, Sara ; Moguš-Milanković, Andrea ; Šantić, Ana

Izvornik
Journal of non-crystalline solids (0022-3093) 535 (2020); 119969, 6

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Iron phosphate glasses ; Pyrophosphate structure ; Electrical conductivity ; Polaronic transport ; Impedance spectroscopy

Sažetak
Structural and electrical properties of glasses of the molar composition xK2O−(40−x/2)Fe2O3−(60−x/2)P2O5, x = 0–36 mol%, are investigated by Raman, Mössbauer and Impedance spectroscopy. All glasses show pyrophosphate structure with a growing tendency for depolymerization with increasing K2O content. The DC conductivity changes in a non- monotonic fashion, exhibiting a broad flat maximum as K2O gradually substitutes Fe2O3 and P2O5. The observed conductivity trend could be related to the changes in the number density of polarons which depends on Fe2O3 and fraction of ferrous ions, indicating dominant polaronic conduction mechanism in all glasses. Interestingly, a relatively small addition of K2O, up to 12 mol%, has a positive effect on the polaronic transport due to slight modifications of glass network. Potassium ions are weakly mobile in iron pyrophosphate glass network and have a negligible contribution to the electrical transport even when their molar fraction is as high as 36 mol%.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Kemija



POVEZANOST RADA


Projekti:
HRZZ-IP-2018-01-5425 - Detaljan uvid u mehanizme polaronske i ionske vodljivosti u oksidnoj staklo-(keramici) (POLAR-ION-GLASS) (Šantić, Ana, HRZZ - 2018-01) ( POIROT)

Ustanove:
Institut "Ruđer Bošković", Zagreb,
Fakultet kemijskog inženjerstva i tehnologije, Zagreb

Profili:

Avatar Url Andrea Moguš-Milanković (autor)

Avatar Url Ana Šantić (autor)

Avatar Url Luka Pavić (autor)

Poveznice na cjeloviti tekst rada:

doi www.sciencedirect.com doi.org

Citiraj ovu publikaciju:

Pavić, Luka; Krivačić, Sara; Moguš-Milanković, Andrea; Šantić, Ana
Low potassium mobility in iron pyrophosphate glasses // Journal of non-crystalline solids, 535 (2020), 119969, 6 doi:10.1016/j.jnoncrysol.2020.119969 (međunarodna recenzija, članak, znanstveni)
Pavić, L., Krivačić, S., Moguš-Milanković, A. & Šantić, A. (2020) Low potassium mobility in iron pyrophosphate glasses. Journal of non-crystalline solids, 535, 119969, 6 doi:10.1016/j.jnoncrysol.2020.119969.
@article{article, author = {Pavi\'{c}, Luka and Kriva\v{c}i\'{c}, Sara and Mogu\v{s}-Milankovi\'{c}, Andrea and \v{S}anti\'{c}, Ana}, year = {2020}, pages = {6}, DOI = {10.1016/j.jnoncrysol.2020.119969}, chapter = {119969}, keywords = {Iron phosphate glasses, Pyrophosphate structure, Electrical conductivity, Polaronic transport, Impedance spectroscopy}, journal = {Journal of non-crystalline solids}, doi = {10.1016/j.jnoncrysol.2020.119969}, volume = {535}, issn = {0022-3093}, title = {Low potassium mobility in iron pyrophosphate glasses}, keyword = {Iron phosphate glasses, Pyrophosphate structure, Electrical conductivity, Polaronic transport, Impedance spectroscopy}, chapternumber = {119969} }
@article{article, author = {Pavi\'{c}, Luka and Kriva\v{c}i\'{c}, Sara and Mogu\v{s}-Milankovi\'{c}, Andrea and \v{S}anti\'{c}, Ana}, year = {2020}, pages = {6}, DOI = {10.1016/j.jnoncrysol.2020.119969}, chapter = {119969}, keywords = {Iron phosphate glasses, Pyrophosphate structure, Electrical conductivity, Polaronic transport, Impedance spectroscopy}, journal = {Journal of non-crystalline solids}, doi = {10.1016/j.jnoncrysol.2020.119969}, volume = {535}, issn = {0022-3093}, title = {Low potassium mobility in iron pyrophosphate glasses}, keyword = {Iron phosphate glasses, Pyrophosphate structure, Electrical conductivity, Polaronic transport, Impedance spectroscopy}, chapternumber = {119969} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


Citati:





    Contrast
    Increase Font
    Decrease Font
    Dyslexic Font