TY  - JOUR
AU  - Stopić, Srećko
AU  - Hounsinou, Ayadjenou Humphrey
AU  - Aka Stéphane, Koffi
AU  - Volkov Husović, Tatjana
AU  - Emil-Kaya, Elif
AU  - Friedrich, Bernd
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6669
AB  - Due to their unique properties, iron nanoparticles find diverse applications across various
fields, including catalysis, electronics, wastewater treatment, and energy storage. Nano-iron particles
are mostly sub-micrometer particles that are highly reactive to both air (oxygen) and water, and
in nanoparticles (size below 100 nm), it is even more rapid than the bulk material. This characteristic limits its use in inert environments. Iron nanoparticles are not toxic and are mostly used for
wastewater treatment. Understanding the hydrogen reduction mechanisms and conditions that lead
to the formation of metallic iron particles from iron (III)-nitrate from an aerosol is crucial for enabling
their effective utilization. In this work, we studied the hydrogen reduction behavior of Fe2O3
in the
absence and presence of additives (SiO2 or Pt). The particles were prepared via ultrasonic spray
pyrolysis and hydrogen reduction. The characterization was performed with a scanning electron microscope, energy-dispersive X-ray spectroscopy, and X-ray diffraction. In the absence of additives, the oxygen
content of iron oxide particles decreased with increasing temperature from 700 to 950 ◦C but significantly
increased with the doping of 10 mL (40 wt.%) of SiO2
. The inhibitory effect of Si on the hydrogen
reduction of Fe2O3
formed was more pronounced at 950 ◦C than at 700 ◦C. In contrast, the doping
of only 5 mL (15 wt.%) of Pt significantly decreased the oxygen concentration in the synthesized
particles by catalyzing the reduction reaction of iron oxides at 700 ◦C. The metallic iron (Fe) product,
obtained in the undoped iron oxides run at only 950 ◦C, was also formed at 700 ◦C in the Pt-doped
Fe2O3 run.
PB  - MDPI
T2  - Metals
T1  - Transformation of Iron (III) Nitrate from an Aerosol by  Ultrasonic Spray Pyrolysis and Hydrogen Reduction
IS  - 10
SP  - 1686
VL  - 13
DO  - 10.3390/met13101686
ER  - 

@article{
author = "Stopić, Srećko and Hounsinou, Ayadjenou Humphrey and Aka Stéphane, Koffi and Volkov Husović, Tatjana and Emil-Kaya, Elif and Friedrich, Bernd",
year = "2023",
abstract = "Due to their unique properties, iron nanoparticles find diverse applications across various
fields, including catalysis, electronics, wastewater treatment, and energy storage. Nano-iron particles
are mostly sub-micrometer particles that are highly reactive to both air (oxygen) and water, and
in nanoparticles (size below 100 nm), it is even more rapid than the bulk material. This characteristic limits its use in inert environments. Iron nanoparticles are not toxic and are mostly used for
wastewater treatment. Understanding the hydrogen reduction mechanisms and conditions that lead
to the formation of metallic iron particles from iron (III)-nitrate from an aerosol is crucial for enabling
their effective utilization. In this work, we studied the hydrogen reduction behavior of Fe2O3
in the
absence and presence of additives (SiO2 or Pt). The particles were prepared via ultrasonic spray
pyrolysis and hydrogen reduction. The characterization was performed with a scanning electron microscope, energy-dispersive X-ray spectroscopy, and X-ray diffraction. In the absence of additives, the oxygen
content of iron oxide particles decreased with increasing temperature from 700 to 950 ◦C but significantly
increased with the doping of 10 mL (40 wt.%) of SiO2
. The inhibitory effect of Si on the hydrogen
reduction of Fe2O3
formed was more pronounced at 950 ◦C than at 700 ◦C. In contrast, the doping
of only 5 mL (15 wt.%) of Pt significantly decreased the oxygen concentration in the synthesized
particles by catalyzing the reduction reaction of iron oxides at 700 ◦C. The metallic iron (Fe) product,
obtained in the undoped iron oxides run at only 950 ◦C, was also formed at 700 ◦C in the Pt-doped
Fe2O3 run.",
publisher = "MDPI",
journal = "Metals",
title = "Transformation of Iron (III) Nitrate from an Aerosol by  Ultrasonic Spray Pyrolysis and Hydrogen Reduction",
number = "10",
pages = "1686",
volume = "13",
doi = "10.3390/met13101686"
}

Stopić, S., Hounsinou, A. H., Aka Stéphane, K., Volkov Husović, T., Emil-Kaya, E.,& Friedrich, B.. (2023). Transformation of Iron (III) Nitrate from an Aerosol by  Ultrasonic Spray Pyrolysis and Hydrogen Reduction. in Metals
MDPI., 13(10), 1686.
https://doi.org/10.3390/met13101686

Stopić S, Hounsinou AH, Aka Stéphane K, Volkov Husović T, Emil-Kaya E, Friedrich B. Transformation of Iron (III) Nitrate from an Aerosol by  Ultrasonic Spray Pyrolysis and Hydrogen Reduction. in Metals. 2023;13(10):1686.
doi:10.3390/met13101686 .

Stopić, Srećko, Hounsinou, Ayadjenou Humphrey, Aka Stéphane, Koffi, Volkov Husović, Tatjana, Emil-Kaya, Elif, Friedrich, Bernd, "Transformation of Iron (III) Nitrate from an Aerosol by  Ultrasonic Spray Pyrolysis and Hydrogen Reduction" in Metals, 13, no. 10 (2023):1686,
https://doi.org/10.3390/met13101686 . .