Hybrid Nanostructures of Fe3O4 and Au Prepared via Coprecipitation and Ultrasonic Spray Pyrolysis DOI Creative Commons

Lan Kresnik,

Peter Majerič, Darja Feizpour

et al.

Metals, Journal Year: 2024, Volume and Issue: 14(12), P. 1324 - 1324

Published: Nov. 23, 2024

The coupled processes of coprecipitation and ultrasonic spray pyrolysis (USP) were used to synthesize Fe3O4-Au hybrid nanostructures. first method enabled the synthesis Fe3O4 nanoparticles by mixing iron salts’ ions (Fe2+ Fe3+) ammonia as base, USP was coating process with Au. formatted nanostructures consist that have Au on their surface in form gold (AuNPs). AuNPs a crystalline structure range size from 10 200 nm. Additional characterization techniques, including ICP-OES, TEM, SEM, EDS, DLS, zeta potential, room temperature magnetic hysteresis loops, determine chemical, physical, properties It found produces separate too (not just surface), suggesting bimodal formation AuNPs. potential showed poor stability (−15 mV), indicating high tendency aggregate, also very low (≅0), which, comparatively means even worse stability. saturation magnetization 35 emu/g, which is relatively lower than bulk Fe3O4, while significantly (0.1 emu/g) compared nanoparticles.

Language: Английский

Hybrid Nanostructures of Fe3O4 and Au Prepared via Coprecipitation and Ultrasonic Spray Pyrolysis DOI Creative Commons

Lan Kresnik,

Peter Majerič, Darja Feizpour

et al.

Metals, Journal Year: 2024, Volume and Issue: 14(12), P. 1324 - 1324

Published: Nov. 23, 2024

The coupled processes of coprecipitation and ultrasonic spray pyrolysis (USP) were used to synthesize Fe3O4-Au hybrid nanostructures. first method enabled the synthesis Fe3O4 nanoparticles by mixing iron salts’ ions (Fe2+ Fe3+) ammonia as base, USP was coating process with Au. formatted nanostructures consist that have Au on their surface in form gold (AuNPs). AuNPs a crystalline structure range size from 10 200 nm. Additional characterization techniques, including ICP-OES, TEM, SEM, EDS, DLS, zeta potential, room temperature magnetic hysteresis loops, determine chemical, physical, properties It found produces separate too (not just surface), suggesting bimodal formation AuNPs. potential showed poor stability (−15 mV), indicating high tendency aggregate, also very low (≅0), which, comparatively means even worse stability. saturation magnetization 35 emu/g, which is relatively lower than bulk Fe3O4, while significantly (0.1 emu/g) compared nanoparticles.

Language: Английский

Citations

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