Pregled bibliografske jedinice broj: 1181782
Nanocrystalline triple perovskite compounds A3Fe2BO9 (A = Sr, Ba; B = W, Te) with ferromagnetic and dielectric properties for triboelectric energy harvesting
Nanocrystalline triple perovskite compounds A3Fe2BO9 (A = Sr, Ba; B = W, Te) with ferromagnetic and dielectric properties for triboelectric energy harvesting // Materials Chemistry Frontiers, 6 (2022), 9; 1116-1128 doi:10.1039/d1qm01565f (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 1181782 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Nanocrystalline triple perovskite compounds
A3Fe2BO9 (A = Sr, Ba; B = W, Te) with
ferromagnetic and dielectric properties for
triboelectric energy harvesting
Autori
Kojčinović, Jelena ; Sahu, Manisha ; Hajra, Sugato ; Tatar, Dalibor ; Klaser, Teodoro ; Skoko, Željko ; Jagličić, Zvonko ; Sadrollahi, Elaheh ; Litterst, Fred Jochen ; Kim, Hoe Joon ; Djerdj, Igor
Izvornik
Materials Chemistry Frontiers (2052-1537) 6
(2022), 9;
1116-1128
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
triboelectric ; triple perovskites ; surface polarity ; magnetic properties ; dielectric properties
Sažetak
Four iron-based triple tungstate and tellurate perovskites have been synthesized in the nanocrystalline form using a simple sol–gel citrate route: Sr3Fe2WO9 (SFWO), Ba3Fe2WO9 (BFWO), Sr3Fe2TeO9 (SFTO), and Ba3Fe2TeO9 (BFTO). Strontium-based compounds crystallize in the tetragonal space group I4/m, while barium-based compounds crystallize in the hexagonal space group P63/mmc. All compounds possess a ferromagnetic order with high values for room-temperature magnetization. The magnetic state as traced by Mössbauer spectroscopy is heterogeneously related to disorder. The compounds also possess relatively high dielectric constants (20–199.16) measured at 1 MHz and a moderate loss factor. The synthesized triple perovskite compounds were utilized in the fabrication of vertical contact mode triboelectric nanogenerators (TENGs). The working mechanism and the electrical response of the TENGs were extensively studied. The TENG device based on BFTO/Kapton triboelectric layers produces the highest output of 88 V/2.69 μA. For the first time, the surface polarity of the triple perovskite was shown using a Kelvin probe force microscopy technique (KPFM), which elucidates the positive polarity of the triboelectric layer. Furthermore, the TENG device was used to charge several capacitors and to carry out the powering of electronics that make it an excellent choice for various self-powered applications.
Izvorni jezik
Engleski
Znanstvena područja
Fizika, Kemija
POVEZANOST RADA
Projekti:
HRZZ-IP-2016-06-3115 - Istraživanje složenih multiferoičnih materijala pripravljenih metodama otopinske kemije (SOLFERROMAT) (Đerđ, Igor, HRZZ - 2016-06) ( CroRIS)
MZO Ustanova-Sveučilište u Osijeku - Odjel za kemiju-CRO-SLO 2020/2021 - Istraživanje složenih perovskitnih volframata s potencijalnim multiferoičnim uređenjem (Đerđ, Igor, MZO Ustanova - Bilateralni projekt Hrvatska - Slovenija) ( CroRIS)
Ustanove:
Prirodoslovno-matematički fakultet, Zagreb,
Sveučilište u Osijeku - Odjel za kemiju
Profili:
Jelena Kojčinović
(autor)
Igor Đerđ
(autor)
Željko Skoko
(autor)
Teodoro Klaser
(autor)
Dalibor Tatar
(autor)
Citiraj ovu publikaciju:
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