Effects of reducing agents on the formation of VOHPO4.0.5H2O precursors prepared from one-step solvothermal synthesis
Abstract
Vanadium hydrophosphate hemihydrate precursor (VOHPO4.0.5H2O) was successfully prepared by a stirring-assisted one-step solvothermal method from the reaction between V2O5, H3PO4 and a light alcohol including isobutanol, isopropanol, and benzyl alcohol. When using ethanol as a reducing agent, the VOHPO4.0.5H2O layered structure was intercalated by ethanol molecules, which may generate a different phase. The solid precursors were characterized by XRD, FT-IR, and TGA techniques. Through an activation process of the VOHPO4.0.5H2O precursors under nitrogen gas at 470 0C, the (VO)2P2O7 was obtained. When using isopropanol, the crystallographic (001) plane of the VOHPO4.0.5H2O and (200) plane of the (VO)2P2O7 are the most dominant.
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Felthouse TR, Burnett JC, Mitchell SF, Mummey MJ. Maleic anhydride, maleic acid, and fumaric acid. Kirk‐Othmer Encycl Chem Technol. 2001.
Lohbeck K, Haferkorn H, Fuhrmann W, Fedtke N. Maleic and fumaric acids. Ullmann’s Encycl Ind Chem. 2000.
Buyevskaya O V, Baerns M. Catalytic selective oxidation of propane. Catal today. 1998;42(3):315–323.
Centi G, Tosarelli Ti, Trifiro F. Acrylonitrile from Propane on (VO)2P2O7 with Preadsorbed Ammonia: 1. Role of Competitive Adsorption Phenomena in Determining Selectivity. J Catal. 1993;142(1):70–83.
Zazhigalov VA, Haber J, Stoch J, Cheburakova E V. The mechanism of n-pentane partial oxidation on VPO and VPBiO catalysts. Catal Commun. 2001;2(11–12):375–378.
Taufiq-Yap YH, Saw CS, Irmawati R. Activation of VOHPO4.0.5H2O in Propane/Air Mixture: Effect on Structural, Morphological, Oxidant’s Behaviour and Catalytic Property of (VO)2P2O7 Catalysts for Propane Oxidation. Catal Letters. 2005;105(1–2):103–110.
Centi G. Vanadyl pyrophosphate-A critical overview. Catal Today. 1993;16(1):5–26.
Hutchings GJ, Desmartin-Chomel A, Olier R, Volta J-C. Role of the product in the transformation of a catalyst to its active state. Nature. 1994;368(6466):41.
Kiely CJ, Burrows A, Hutchings GJ, và c.s. Structural transformation sequences occurring during the activation of vanadium phosphorus oxide catalysts. Faraday Discuss. 1996;105:103–118.
Bordes E. Crystallochemistry of V-P-O phases and application to catalysis. Catal Today. 1987;1(5):499–526.
Okuhara T, Inumaru K, Misono M. Active Crystal Face of Vanadyl Pyrophosphate for Selective Oxidation of Butane, Catalytic Selective Oxidation, 1993 Vol 523. ACS Symposium Series. American Chemical Society:12–156.
Guliants V V, Benziger JB, Sundaresan S, Wachs IE, Jehng J-M, Roberts JE. The effect of the phase composition of model VPO catalysts for partial oxidation of n-butane. Catal Today. 1996;28(4):275–295.
Misono M. Selective oxidation of butanes. Toward green/sustainable chemistry. Top Catal. 2002;21(1–3):89–96.
Hutchings GJ, Higgins R. Effect of Promoters on the Selective Oxidation ofn-Butane with Vanadium-Phosphorus Oxide Catalysts. J Catal. 1996;162(2):153–168.
Hutchings GJ, Sananes MT, Sajip S, and c.s. Improved method of preparation of vanadium phosphate catalysts. Catal today. 1997;33(1–3):161–171.
Ellison IJ, Hutchings GJ, Sananes MT, Volta J-C. Control of the composition and morphology of vanadium phosphate catalyst precursors from alcohol treatment of VOPO4.2H2O. J Chem Soc Chem Commun. 1994;(9):1093–1094.
Centi G, Cavani F, Trifirò F. Selective oxidation by heterogeneous catalysis. Springer Science & Business Media; 2012.
Centi G, Trifiro F, Ebner JR, Franchetti VM. Mechanistic aspects of maleic anhydride synthesis from C4 hydrocarbons over phosphorus vanadium oxide. Chem Rev. 1988;88(1):55–80.
Hutchings GJ. Vanadium phosphate: a new look at the active components of catalysts for the oxidation of butane to maleic anhydride. J Mater Chem. 2004;14(23):3385–3395.
Rownaghi AA, Taufiq-Yap YH. Novel synthesis techniques for preparation of ultrahigh-crystalline vanadyl pyrophosphate as a highly selective catalyst for n-butane oxidation. Ind Eng Chem Res. 2010;49(5):2135–2143.
ClaudeáVolta J. n-Butane oxidation using catalysts prepared by treatment of VOPO4.2H2O with octanol. J Chem Soc Faraday Trans. 1996;92(1):137–142.
Yamamoto N, Hiyoshi N, Okuhara T. Thin-Layered Sheets of VOHPO4.0.5H2O Prepared from VOPO4.2H2O by Intercalation− Exfoliation− Reduction in Alcohol. Chem Mater. 2002;14(9):3882–3888.
Kamiya Y, Ueki S, Hiyoshi N, Yamamoto N, Okuhara T. Preparation of catalyst precursors for selective oxidation of n-butane by exfoliation–reduction of VOPO4.2H2O in primary alcohol. Catal today. 2003;78(1–4):281–290.
Hiyoshi N, Yamamoto N, Okuhara T. Novel preparation of vanadyl pyrophosphate for selective oxidation of n-butane utilizing intercalation and exfoliation. Chem Lett. 2001;30(6):484–485.
Horowotz HS, Blackstone CM, Sleight AW, Teufer G. VPO catalysts for oxidation of butane to maleic anhydride: Influence of (VO)2H4P2O9 precursor morphology on catalytic properties. Appl Catal. 1988;38(2):193–210.
Nguyễn Đình Minh Tuấn, Nguyễn Thị Như Anh, Lê Đình Phụng, Nguyễn Đình Lâm, Tổng hợp đặc trưng tiền chất xúc tác vanadi phosphat ứng dụng trong phản ứng oxy hóa chọn lọc, Tạp chí hóa học, 2017, 191-196.
Landi G, Lisi L, Volta J-C. Oxidation of propane to acrylic acid over vanadyl pyrophosphate: modifications of the structural and acid properties during the precursor activation and their relationship with catalytic performances. J Mol Catal A Chem. 2004;222(1–2):175–181.
Bellamy LJ. The infra-red spectra of complex molecules, 1975, p.353.
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