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

Napredna pretraga

Pregled bibliografske jedinice broj: 896643

Ion-polaron charge transport in alkali zinc phosphate glasses containing WO3 and MoO3


Nikolić, Juraj; Pavić, Luka; Šantić, Ana; Mošner, Petr; Koudelka, Ladislav; Pajić, Damir; Moguš-Milanković, Andrea
Ion-polaron charge transport in alkali zinc phosphate glasses containing WO3 and MoO3 // 25. HSKIKI - Knjiga sažetaka / Đaković, Marijana ; Miljanić, Snežana ; Šantić, Ana ; Vianello, Robert (ur.).
Zagreb: Hrvatsko kemijsko društvo, 2017. str. 224-224 (poster, domaća recenzija, sažetak, znanstveni)


CROSBI ID: 896643 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Ion-polaron charge transport in alkali zinc phosphate glasses containing WO3 and MoO3

Autori
Nikolić, Juraj ; Pavić, Luka ; Šantić, Ana ; Mošner, Petr ; Koudelka, Ladislav ; Pajić, Damir ; Moguš-Milanković, Andrea

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
25. HSKIKI - Knjiga sažetaka / Đaković, Marijana ; Miljanić, Snežana ; Šantić, Ana ; Vianello, Robert - Zagreb : Hrvatsko kemijsko društvo, 2017, 224-224

ISBN
978-953-55232-7-7

Skup
25. Hrvatski skup kemičara i kemijskih inženjera

Mjesto i datum
Poreč, Hrvatska, 19.-22.04.2017

Vrsta sudjelovanja
Poster

Vrsta recenzije
Domaća recenzija

Ključne riječi
Electrical conductivity ; Glass ; Impedance spectroscopy ; Phosphates

Sažetak
Glass systems of the composition (30-0.5x)M2O- (30-0.5x)ZnO-40P2O5-xTMO (0≤x≤60 mol. %) were studied (M = Na, Li ; TMO = WO3, MoO3). These glasses show interesting electrical properties due to potential coexistance of two different conduction mechanisms. Generally, at high alkali metal oxide content ionic conduction is predominant whereas at high transition metal oxide content polaronic conduction is prefered. In glasses with equal content of both alkali and transition metal oxide a conductivity minimum should be observed. This effect is known as ion-polaron effect and it has been a subject of investigation for decades. [1] Structure of glasses was investigated by Raman and infrared spectroscopy (IR). Glasses with high alkali metal oxide content contain mostly metaphosphate units (Q2) which depolymerize with the addition of TMO. Also, in these glasses, at very high content of TMO, the TMO starts acting as both network modifier and network former. [2, 3] Electrical and dielectric properties of glasses have been studied by impedance spectroscopy in wide frequency and temperature ranges. The results have shown that these glasses show a minimum of conductivity with increasing TMO content. Conductivity minimum in all series of glasses suggest that the coupling of ionic and polaronic conduction mechanisms occur which can be attributed to ion-polaron effect.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Kemija



POVEZANOST RADA


Projekti:
IP-09-2014-5863

Ustanove:
Institut "Ruđer Bošković", Zagreb,
Prirodoslovno-matematički fakultet, Zagreb


Citiraj ovu publikaciju

Nikolić, Juraj; Pavić, Luka; Šantić, Ana; Mošner, Petr; Koudelka, Ladislav; Pajić, Damir; Moguš-Milanković, Andrea
Ion-polaron charge transport in alkali zinc phosphate glasses containing WO3 and MoO3 // 25. HSKIKI - Knjiga sažetaka / Đaković, Marijana ; Miljanić, Snežana ; Šantić, Ana ; Vianello, Robert (ur.).
Zagreb: Hrvatsko kemijsko društvo, 2017. str. 224-224 (poster, domaća recenzija, sažetak, znanstveni)
Nikolić, J., Pavić, L., Šantić, A., Mošner, P., Koudelka, L., Pajić, D. & Moguš-Milanković, A. (2017) Ion-polaron charge transport in alkali zinc phosphate glasses containing WO3 and MoO3. U: Đaković, M., Miljanić, S., Šantić, A. & Vianello, R. (ur.)25. HSKIKI - Knjiga sažetaka.
@article{article, year = {2017}, pages = {224-224}, keywords = {Electrical conductivity, Glass, Impedance spectroscopy, Phosphates}, isbn = {978-953-55232-7-7}, title = {Ion-polaron charge transport in alkali zinc phosphate glasses containing WO3 and MoO3}, keyword = {Electrical conductivity, Glass, Impedance spectroscopy, Phosphates}, publisher = {Hrvatsko kemijsko dru\v{s}tvo}, publisherplace = {Pore\v{c}, Hrvatska} }
@article{article, year = {2017}, pages = {224-224}, keywords = {Electrical conductivity, Glass, Impedance spectroscopy, Phosphates}, isbn = {978-953-55232-7-7}, title = {Ion-polaron charge transport in alkali zinc phosphate glasses containing WO3 and MoO3}, keyword = {Electrical conductivity, Glass, Impedance spectroscopy, Phosphates}, publisher = {Hrvatsko kemijsko dru\v{s}tvo}, publisherplace = {Pore\v{c}, Hrvatska} }




Contrast
Increase Font
Decrease Font
Dyslexic Font