Solar Hydrogen Production by Using Ferrites

Tamaura, Yutaka; Ueda, Y.; Matsunami, Jun; Hasegawa, Noriko; Nezuka, M.; Sano, Taizo; Tsuji, Masamichi

doi:10.1016/s0038-092x(98)00087-5

Cited by 83 publications

(34 citation statements)

References 8 publications

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“…Mainly the dye discharged into water from industries is very much toxic to microorganisms, aquatic life and human habitats [8][9][10][11][12]. Most of the semiconductor photocatalysts used for the treatment of organic pollutant can utilize only ultraviolet radiations due to their band gap values (> 3.1 eV) [13]. However, we need to develop a photo catalyst that efficiently extends visible light response in catalytic activity for ecological remediation which has become a large task and most dynamic research issues in photocatalytic activity [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Green and chemical-engineered CuFe2O4: characterization, cyclic voltammetry, photocatalytic and photoluminescent investigation for multifunctional applications

Surendra¹,

Veerabhdraswamy

Anantharaju

et al. 2018

J Nanostruct Chem

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CuFe 2 O 4 nanoparticles (CNPs) with cubic and tetragonal spinel structures were synthesized by Jatropha oil-assisted green combustion route (GCR) and urea-assisted chemical combustion route (CCR) and well-characterized. The photocatalytic activity of CNPs prepared via GCR and CCR showed 96 and 83% sunlight degradation of Malachite green (MG) dye, respectively. Electrochemical properties of CNPs were studied by means of Cyclic Voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The current research work pledges to provide some novel insights into the design of material for multifunctional long-term applications for environmental clean-up.

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Section: Introductionmentioning

confidence: 99%

Green and chemical-engineered CuFe2O4: characterization, cyclic voltammetry, photocatalytic and photoluminescent investigation for multifunctional applications

Surendra¹,

Veerabhdraswamy

Anantharaju

et al. 2018

J Nanostruct Chem

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“…It has been reported that partial substitution of iron in the magnetite phase by Mn, Ni, or Zn forms mixed-metal oxides of the type MFe 2 O 4 (mixed ferrites) that are more reducible and require moderate, upper (thermal reduction) operating temperatures. A whole series of such ferrites has been tested experimentally and studied thermodynamically, including either only one divalent metal cation in the M site, such as MnFe 2 O 4 (Tamaura et al, 1999), ZnFe 2 O 4 (Aoki, Kaneko, et al, 2004;Kaneko et al, 2004), NiFe 2 O 4 (Agrafiotis, Zygogianni, Pagkoura, Kostoglou, & Konstandopoulos, 2013;Fresno, Yoshida, Gokon, FernandezSaavedra, & Kodama, 2010;Gokon, Takahashi, Yamamoto, & Kodama, 2008;Gokon, Mataga, Kondo, & Kodama, 2011), or CoFe 2 O 4 (Miller et al, 2008), or two such cations-i.e., of the type (C x D 1-x ) þ2 Fe 2 þ3 O 4 -including Ni 0.5 Mn 0.5 Fe 2 O 4 (Tamaura et al, 1998;Tamaura, Steinfeld, Kuhn, & Ehrensberger, 1995), Mn 0.5 Zn 0.5 Fe 2 O 4 (Inoue et al, 2004), and other cation stoichiometries (Allendorf, 2008;Kodama & Gokon, 2007;Kojima et al, 1996;Miller et al, 2006). However, their thermal reduction temperatures are still high (z1600e1700 K), which is an important drawback because it can cause significant sintering of the metal oxide.…”

Section: The Ferrite Cyclementioning

confidence: 99%

Hydrogen production via thermochemical water splitting

Roeb

Agrafiotis

Sattler

2015

Compendium of Hydrogen Energy

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“…Se ha probado que algunas ferritas se pueden utilizar con éxito en el agua a baja temperatura en los ciclos termoquímicos (Tamaura et al, 1995;Tamaura et al, 1999).…”

Section: Introductionunclassified

Obtención y caracterización de ferritas ternarias de manganeso por mecanosíntesis

García¹,

Jesús²,

Méndez-Marzo³

et al. 2007

BSGM

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Obtención y caracterización de ferritas ternarias de manganeso por mecanosíntesis. 125 ResumenPartículas cristalinas de MnFe 2 O 4 fueron sintetizadas por molienda y mezclado en un molino de bola, obteniéndose a partir de mezcla estequiométrica de manganosita (MnO) y hematite (α-Fe 2 O 3 ). El proceso de mecanosíntesis fue realizado a temperatura ambiente en recipientes de acero endurecido y con frascos del carburo de tungsteno. El análisis cuantitativo de las fases se realizó por difracción de rayos X del polvo. El método de Rietveld fue utilizado para estudiar las transformaciones químicas producidas por la acción de la molienda de los polvos.La fase de espinela del compuesto cristalino MnFe 2 O 4 comienza a aparecer después de 10 h de molienda y alcanza su contenido máximo (fracción molar aproximadamente 0.8) después de 35 h de molienda. Una prolongada molienda indujo a una contaminación severa en la mezcla del polvo con hierro metálico cuando se utilizó el recipiente de acero inoxidable endurecido. La contaminación con Fe se origina en el interior del recipiente por el deterioro de las bolas. La fricción de las bolas puede inducir una reacción redox entre Fe(III) y el hierro metálico, transformando la fase de la espinela sintética MnFe 2 O 4 en una fase del tipo wustita (Fe, Mn)O. La permeabilidad magnética a los diferentes tiempos de molienda lo demuestra.

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Solar Hydrogen Production by Using Ferrites

Cited by 83 publications

References 8 publications

Green and chemical-engineered CuFe2O4: characterization, cyclic voltammetry, photocatalytic and photoluminescent investigation for multifunctional applications

Green and chemical-engineered CuFe2O4: characterization, cyclic voltammetry, photocatalytic and photoluminescent investigation for multifunctional applications

Hydrogen production via thermochemical water splitting

Obtención y caracterización de ferritas ternarias de manganeso por mecanosíntesis

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