Synthesis and properties of Sn1−xFexO2 nanoparticles obtained by a proteic sol–gel method

Abstract

Iron-doped SnO 2 nanoparticles with chemical formula Sn 1−x Fe x O 2−y (x = 0.02, 0.05 and 0.10 at%) were successfully produced by a proteic sol-gel method. Thermogravimetric analysis and differential scanning calorimetry were performed to investigate the thermal behavior of the precursor powders as well as to select the appropriate calcination temperatures for oxide formation. X-ray absorption near-edge spectroscopy studies were carried out to determine the valence state of the transition metal used as dopant. Structural, morphological, and optical properties of the synthesized materials were studied by X-ray diffraction, Mössbauer spectroscopy, transmission electron microscopy, Fourier-transform infrared spectroscopy, and ultraviolet-visible spectroscopy. The results confirmed the formation of M. S. Pereira ( ) • C.

Flexible, Large-Area Organic Solar Cells With Improved Performance Through Incorporation of CoFe2O4 Nanoparticles in the Active Layer

“…CoFe 2 O 4 NPs were produced by a proteic sol-gel method 34 following an experimental procedure described elsewhere 35,36 . Commercial Fe(NO 3 ) 3 9H 2 O (Sigma-Aldrich, 98%, 404 g/mol ) and Co(NO 3 ) 2 6H 2 O (Sigma-Aldrich, 98%, 291.03 g/mol) powders were used as metal precursors and comercial gelatin from bovine skin (Type B, Sigma-Aldrich) was used as organic precursor.…”

Observation of cluster spin glass behavior in thermally decomposed nanocrystalline Sn0.5Fe0.5O2−δ

“…Various synthesis methods were employed to prepare Fe–SnO 2 samples in bulk, nanocrystalline and thin film forms. 13,15,19,24,27–50 First principles calculations suggested that the ferromagnetic state is energetically favourable compared to the antiferromagnetic state in Fe doped SnO 2 . 10 Bulk Fe–SnO 2 exhibited room temperature ferromagnetism.…”

“…10 Bulk Fe–SnO 2 exhibited room temperature ferromagnetism. 16 Nanocrystalline Sn 1− x Fe x O 2 prepared by a cost-effective sol–gel route 35–38 also exhibited room temperature ferromagnetism. The maximum iron doping accomplished is 20% but the magnetic nature is unknown.…”

Bio-Synthesized Tin Oxide Nanoparticles: Structural, Optical, and Biological Studies

“…They are also used as antibacterial agents, as they have the ability to pass the cell membrane readily due to their smaller size; in comparison to traditional medicines, they may transport entire body parts. In many different fields, such as in lithium rechargeable batteries, transparent conducting films, dye-sensitized photovolatic cells, catalytic materials, environmental monitoring, biochemical sensor, and ultrasensitive gas sensors, SnO 2 nanoparticles are used [6][7][8][9]. Most recently, SnO 2 nanoparticles have also been used for their antioxidant and antibacterial potentials.…”