Pulse galvanostatic synthesis of superparamagnetic hematite nanorods in the presence of external magnetic field

Karami, Hassan; Ordoukhanian, Juliet; Nezhadali, Azizollah

doi:10.1016/j.ceramint.2015.07.206

Cited by 9 publications

(3 citation statements)

References 23 publications

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“…(Meghana Navada et al, 2022). El área superficial BET que exhibieron las nanobarras de α-Fe2O3 sintetizadas fue de 100.86 m 2 /g superior a lo reportado por (Karami et al, 2015) donde informaron un área superficial BET de 53.14 m 2 /g para nanobarras de hematita. El volumen de poro y el ancho medio de poro de las NPs de α-Fe2O3 fue de 0.157 cc/g y 1.41 nm, respectivamente.…”

Section: Análisis Betunclassified

Síntesis y caracterización de nanopartículas de Fe2O3 para la producción de biodiésel

Alemán-Ramirez,

Becerra-Paniagua,

Torres-Arellano

et al. 2023

ICBI

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En este trabajo, se elaboraron y caracterizaron nanopartículas metálicas de hematita (α-Fe2O3) sintetizadas por el método tradicional de coprecipitación seguido de un tratamiento térmico a 500 °C durante 1 hora a atmosfera ambiente, para ser empleadas como catalizador heterogéneo para la producción de biodiésel a partir del aceite de soya. Las propiedades texturales (BET) y morfológicas (SEM) de las nanopartículas indican que presentan un área superficial de 100.86 m2/g y una morfología superficial en forma de nanovarillas con abundante porosidad. El análisis XRD indico los planos (1 0 4) y (1 1 0) característicos de las nanopartículas de α-Fe2O3. El rendimiento máximo que alcanzó en la producción de biodiésel fue del 90 % bajo condiciones optimizadas. Una relación molar de metanol a aceite de soya de 15:1, con una carga de catalizador del 4 wt %, y un tiempo de reacción de 240 min. La temperatura de reacción y la agitación fueron de 65 °C y 600 rpm. El catalizador basado en nanopartículas metálicas de α-Fe2O3 puede ser reutilizado durante 7 ciclos consecutivos hasta perder su actividad catalítica. El biodiésel producido de soya cumple con los valores establecidos por la Sociedad Americana de Pruebas y Materiales (ASTM)

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Section: Análisis Betunclassified

Síntesis y caracterización de nanopartículas de Fe2O3 para la producción de biodiésel

Alemán-Ramirez,

Becerra-Paniagua,

Torres-Arellano

et al. 2023

ICBI

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“…The highest peaks of oxidation-reduction are related to the MFC that their anode is (Fe 2 O 3 /CS) 4 /ITO. However, the MFC with (Fe 2 O 3 /CS) 6 /ITO anode has more oxidation-reduction peaks than (Fe 2 O 3 /CS) 2 /ITO. So, change the anode in two layer Fe 2 O 3 /CS are similar to the results of a six-layer mode.…”

Section: Microbial Fuel Cells (Mfc)mentioning

confidence: 99%

“…In addition to the above, one of the most important applications in nanostructured magnetic nanorods is related to the field of biomedical that the following discussion will refer to this issue. The word superparamagnetic is used to describe the absence of coercivity or residual magnetization in the number of particles that their spins are under the influence of an external magnetic field [6]. In this regard, due to the small size and zero magnetization in the absence of field, superparamagnetic nanorods also used in biomedicine [7].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of magnetic nanorods and their applications in medicine

2017

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Abstract:Nanorods in nanotechnology called a specific type of morphology of nanoscale materials that their dimensions range is from 1 to 100 nm. Nanorods can be synthesized from metal or semi-conductive material with a surface to volume ratio of 3-5. One method of making nanorods is direct chemical method. Ligands compounds as a shape control agents cause growth the nanorods and create stretched and extended modes of them. In recent years, magnetic nanorods are one of the nanorods that have been raised in the field of nano medicine [Nath S, Kaittanis C, Ramachandran V, Dalal NS, Perez JM. Synthesis, magnetic characterization, and sensing applications of novel dextran-coated iron oxide nanorods. Chem Mater. 2009;21:1761-7.]. Superparamagnetic properties of magnetic nanorods causes to sensing be done with high accuracy. In addition, other applications of magnetic nanorods are in the field of separation and treatment [Hu B, Wang N, Han L, Chen ML, Wang JH. Magnetic nanohybrids loaded with bimetal core-shell-shell nanorods for bacteria capture, separation, and near-infrared photothermal treatment. Chemistry. 2015;21:6582-9.]. Therefore, in biomedical applications, the nanorods are used usually with biological molecules such as antibodies [Schrittwieser S, Pelaz B, Parak WJ, Lentijo-Mozo S, Soulantica K, Dieckhoff J, et al. Homogeneous protein analysis by magnetic core-shell nanorod probes. ACS Appl Mater Interfaces. 2016;8:8893-9.]. For this purpose, in the present work we will try to introduce magnetic nanorods and mention their different methods of synthesis and applications.

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Facile preparation of network-like porous hematite (α-Fe 2 O 3 ) nanosheets via a novel combustion-based route

Huang

Qin

Chen

et al. 2016

Ceramics International

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Pulse galvanostatic synthesis of superparamagnetic hematite nanorods in the presence of external magnetic field

Cited by 9 publications

References 23 publications

Síntesis y caracterización de nanopartículas de Fe2O3 para la producción de biodiésel

Síntesis y caracterización de nanopartículas de Fe2O3 para la producción de biodiésel

Fabrication of magnetic nanorods and their applications in medicine

Facile preparation of network-like porous hematite (α-Fe 2 O 3 ) nanosheets via a novel combustion-based route

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