Effect of the Fuels Glycine, Urea and Citric Acid on Synthesis of the Ceramic Pigment ZnCr2O4 by Solution Combustion

Miranda, Edgar Andrés Chavarriaga; Carvajal, Juan Fernando Montoya; Baena, Óscar Jaime Restrepo

doi:10.1590/1516-1439.019915

Cited by 27 publications

(12 citation statements)

References 23 publications

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“…In combustion method, the valence of elements are used in form to establish a relation between quantities of oxidants and fuels (reductants), with basis in stoichiometry established previously. In propellant chemistry was defined the concepts of valences of oxidizing and reductants [17][18] , carbon, hydrogen, iron, cobalt, and zinc, with respective valences +4, +1, +3 and +2, oxygen is considered like as oxidant element with valence -2, and nitrogen is a neutral element with valence equal a 0. The valences for all species are Fe(NO 3 ) 3 .9H 2 O = -15, Co(NO 3 ) 2 .6H 2 O = -10, Zn(NO 3 ) 2 .6H 2 O = -10, CO(NH 2 ) 2 = +6, the quantity of CO(NH 2 ) 2 which will be used in combustions reactions is determined by equation 1:…”

Section: Chemicals and Synthesismentioning

confidence: 99%

Tunable Magnetic and Electrical Properties of Cobalt and Zinc Ferrites CO1-XZnXFe2O4 Synthesized by Combustion Route

et al. 2018

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Co and Zn ferrites with general formula CO 1-X Zn X Fe 2 O 4 (x = 0; 0,2 and 0,8) were synthesized by combustion reaction method, using urea as fuel. The structure of inverse-spinel-type ferrite were characterized through XRD using Rietveld refinement method to identify, quantify phases and determine lattice parameters. The crystallites had mean size of 37,33 nm, 43,66 nm and 51.88 nm with the increment of Zn 2+ , respectively. Samples were sintered in a resistive oven at 900 °C for 3 hours. Analysis by SEM indicated that the particles have irregular sizes and high concentration of open pores. The magnetic properties were measured using a vibrating sample magnetometer (VSM), through which a decrease in the magnetization variation was observed as the non-magnetic Zn 2+ concentration increases. The permittivity and loss tangent were determined using vector network analyzer equipment, permittivity increases with the increase of zinc concentration and the tangent loss measurements were small for all ferrites synthesized in this work.

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Section: Chemicals and Synthesismentioning

confidence: 99%

Tunable Magnetic and Electrical Properties of Cobalt and Zinc Ferrites CO1-XZnXFe2O4 Synthesized by Combustion Route

et al. 2018

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“…The fuel type, quantity of fuel and composition are the most important parameters affecting the obtained products. Urea, carbohydrazide, oxalic dihydrazide, and glycine have been the most commonly used fuels because they are easy to gasify and are cheap (19). Besides, polymeric materials like maleic acid, citric acid, ethylene glycol, and polyvinyl alcohol have also been used as fuels.…”

Section: Introductionmentioning

confidence: 99%

Solution Combustion Synthesis of Iron Oxyborate (Fe3BO6)

Özer

İçten

2019

Journal of the Turkish Chemical Society Section A: Chemistry

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In this study, iron oxyborate (Fe3BO6) was synthesized through the solution combustion method as a potential anode material for lithium-ion batteries. Urea, glycine, citric acid, carbohydrazide, hexamethylene tetramine, and starch were used as fuel sources and the effects of the fuels were investigated. The obtained materials were structurally characterized by FT-IR, powder-XRD, solid UV-Vis, TGA and VSM. The pure crystalline Fe3BO6 was synthesized at low temperature and short reaction time using glycine-assisted solution combustion method. It was thermally stable up to 945 °C with a non-uniform morphology and a highly porous structure. The magnetic properties were also studied and Fe3BO6 shows antiferromagnetic behavior. Cite this: Ozer D, Icten O. Solution Combustion Synthesis of Iron Oxyborate (Fe3BO6). JOTCSA. 2019;6(2):95-102.

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“…The product has an unidentical and large size and many phases [9]. To reduce the sintering temperature, ZnCr2O4 spinel is currently synthesized with wet methods such as sol-gel [2,10], precursor method [11], burning [5,12], coprecipitation [13], ultrasonic and high energy ball milling combined co-precipitation [14], microemulsion [7], hydrothermal method [15], hydrothermal combined co-precipitation [16]. The starch-assisted sol-gel process exhibits many advantages such as (i) easy to control the regular proportion of product; (ii) metal cations equally disperse in starch to form a metal-starch complex;…”

Section: Introductionmentioning

confidence: 99%

“…The particles do not agglomerate into a large bulk and the boundary between particles is clear. The nanometer-sized pigment synthesized with the starch-assisted sol-gel method can be used in the pigment inkjet technology onto the surface of the product that is a current hot topic in ceramic production [10].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of FexZn1-xCr2O4 brown ceramic pigment by starch-assisted sol-gel process

Tuyền

Quyên

Lâm³

2019

hueuni-jns

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In the present paper, the ceramic pigments of FexZn1-xCr2O4 (x = 0 ¸ 1) were synthesized by the starch assisted sol-gel method. The resulting pigments were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), CIE L*a*b* color measurement. The results showed that the preparation pigments of FexZn1-xCr2O4, calcinated at 1100oC for 60 minutes, obtained phases of spinel ACr2O4 (A: Zn, Fe) and perovskite FeCrO3 with excellent crystallinity. The brown color intensity was gradually increased as a function of the amount of substituted Fe2+ ion. The achieved pigments met industrial requirements in terms of physicochemical characteristics.

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Effect of the Fuels Glycine, Urea and Citric Acid on Synthesis of the Ceramic Pigment ZnCr2O4 by Solution Combustion

Cited by 27 publications

References 23 publications

Tunable Magnetic and Electrical Properties of Cobalt and Zinc Ferrites CO1-XZnXFe2O4 Synthesized by Combustion Route

Tunable Magnetic and Electrical Properties of Cobalt and Zinc Ferrites CO1-XZnXFe2O4 Synthesized by Combustion Route

Solution Combustion Synthesis of Iron Oxyborate (Fe3BO6)

Synthesis of FexZn1-xCr2O4 brown ceramic pigment by starch-assisted sol-gel process

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