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The effects of cerium substitution, use of additives, and heating temperature on the chemical composition and catalytic activity of iron phosphate were evaluated. Iron–cerium phosphate was prepared from iron nitrate, ammonium cerium nitrate, and sodium phosphate in ethylene glycol using sodium dodecyl-sulfate or acetylacetone as additive. The chemical composition, particle shape and size distribution of the obtained samples were respectively evaluated based on ICP and XRD, SEM, and laser diffraction/scattering analysis. The catalytic activity was evaluated based on the decomposition of the complex formed from formaldehyde, ammonium acetate, and acetylacetone. XRD peaks corresponding to FePO4 were observed for the samples heated at 600 ℃ whereas samples treated at lower temperatures were amorphous. Iron–cerium phosphates heated at 200 ℃ and 400 ℃ exhibited high catalytic activity for the decomposition of the aforementioned complex.


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Synthesis and catalytic properties of iron–cerium phosphate prepared in ethylene glycol using additives

Show Author's information Hiroaki ONODA*( )Takeshi SAKUMURA
Department of Informatics and Environmental Sciences, Kyoto Prefectural University, 1-5, Shimogamo Nakaragi-cho, Sakyo-ku, Kyoto 606-8522, Japan

Abstract

The effects of cerium substitution, use of additives, and heating temperature on the chemical composition and catalytic activity of iron phosphate were evaluated. Iron–cerium phosphate was prepared from iron nitrate, ammonium cerium nitrate, and sodium phosphate in ethylene glycol using sodium dodecyl-sulfate or acetylacetone as additive. The chemical composition, particle shape and size distribution of the obtained samples were respectively evaluated based on ICP and XRD, SEM, and laser diffraction/scattering analysis. The catalytic activity was evaluated based on the decomposition of the complex formed from formaldehyde, ammonium acetate, and acetylacetone. XRD peaks corresponding to FePO4 were observed for the samples heated at 600 ℃ whereas samples treated at lower temperatures were amorphous. Iron–cerium phosphates heated at 200 ℃ and 400 ℃ exhibited high catalytic activity for the decomposition of the aforementioned complex.

Keywords:

iron phosphate, cerium substitution, ethylene glycol, ICP analysis, catalytic property
Received: 24 November 2012 Revised: 22 January 2013 Accepted: 23 January 2013 Published: 06 April 2013 Issue date: March 2013
References(16)
[1]
Onoda H, Nariai H, Moriwaki A, et al. Formation and catalytic characterization of various rare earth phosphates. J Mater Chem 2002, 12: 1754–1760.
[2]
Onoda H, Ohta T, Tamaki J, et al. Decomposition of trifluoromethane over nickel pyrophosphate catalysts containing metal cation. Appl Catal A 2005, 288: 98–103.
[3]
Onoda H, Yokouchi K, Kojima K, et al. Addition of rare earth cation on formation and properties of various cobalt phosphates. Mat Sci Eng B 2005, 116: 189–195.
[4]
Tang WJ. Physico-chemical properties and oxygen species behavior of bulk and modified vanadium phosphate catalyst for partial oxidation of N-butane. Ph.D. Thesis. Malaysia: University Putra, 2008.
[5]
Li CL, Kawada H, Sun XY, et al. Highly efficient alcohol oxidation on nanoporous VSB-5 nickel phosphate catalyst functionalized by NaOH treatment. ChemCatChem 2011, 3: 684–689.
[6]
Wang X, Wang Y, Tang Q, et al. MCM-41-supported iron phosphate catalyst for partial oxidation of methane to oxygenates with oxygen and nitrous oxide. J Catal 2003, 217: 457–467.
[7]
Yaripour F, Baghaei F, Schmidt I, et al. Synthesis of dimethyl ether from methanol over aluminium phosphate and silica–titania catalysts. Catal Commun 2005, 6: 542–549.
[8]
Li N, Tompsett GA, Huber GW. Renewable high-octane gasoline by aqueous-phase hydrodeoxygenation of C5 and C6 carbohydrates over Pt/zirconium phosphate catalysts. ChemSusChem 2010, 3: 1154–1157.
[9]
Zhong DK, Cornuz M, Sivula K, et al. Photo-assisted electrodeposition of cobalt–phosphate (Co–Pi) catalyst on hematite photoanodes for solar water oxidation. Energy Environ Sci 2011, 4: 1759–1764.
[10]
Guan G, Kusakabe K, Yamasaki S. Tri-potassium phosphate as a solid catalyst for biodiesel production from waste cooking oil. Fuel Process Technol 2009, 90: 520–524.
[11]
Onoda H, Asai K, Takenaka A. Preparation of nickel phosphates with various acidic and basic compounds. J Ceram Process Res 2011, 12: 439–442.
[12]
Onoda H, Taniguchi K, Tanaka I. Additional effects of urea on preparation and acidic properties of lanthanum orthophosphate. Microporous Mesoporous Mater 2008, 109: 193–198.
[13]
Onoda H, Sakumura T. Synthesis and pigmental properties of nickel phosphates by the substitution with tetravalent cerium cation. Mater Sci Appl 2011, 2: 1578–1583.
[14]
Onoda H, Matsui H, Tanaka I. Improvement of acid and base resistance of nickel phosphate pigment by the addition of lanthanum cation. Mat Sci Eng B 2007, 141: 28–33.
[15]
Onoda H, Tange K, Tanaka I. Influence of lanthanum addition on preparation and powder properties of cobalt phosphates. J Mater Sci 2008, 43: 5483–5488.
[16]
Onoda H, Sakumura T. Preparation and acidic properties of iron phosphates with sodium dodecyl-sulfate. Phosphorus Res Bull 2012, 27: 28–32.
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Publication history

Received: 24 November 2012
Revised: 22 January 2013
Accepted: 23 January 2013
Published: 06 April 2013
Issue date: March 2013

Copyright

© The author(s) 2013

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Open Access: This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.

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