A Study of Water Influence on Carbon Monoxide Adsorption and Oxidation on Nanocrystals of: γ-Fe2O3, Au/Fe2O3 and MnxZn1-xFe2O4

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In this paper the adsorption and oxidation of CO on nanocrystalline Au/γ-Fe2O3, Au/α- Fe2O3, γ-Fe2O3 and a series of mixed ferrite with MnxZn1-xFe2O4 composition are investigated. The catalysts were prepared by co-precipitation method and characterized using X-ray diffraction (XRPD), specific surface (BET), transition electron spectroscopy (TEM) and magnetization measurements. A temperature programmed desorption (TPD) study of the water and CO interaction with nanocrystalline adsorbents is presented. The catalytic activities towards CO oxidation increased in the following order: γ-Fe2O3 < MnxZn1-xFe2O4 < Au/γ-Fe2O3 .

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Edited by:

Dragan P. Uskokovic, Slobodan K. Milonjic and Dejan I. Rakovic

Pages:

85-90

DOI:

10.4028/www.scientific.net/MSF.518.85

Citation:

V. Dondur et al., "A Study of Water Influence on Carbon Monoxide Adsorption and Oxidation on Nanocrystals of: γ-Fe2O3, Au/Fe2O3 and MnxZn1-xFe2O4 ", Materials Science Forum, Vol. 518, pp. 85-90, 2006

Online since:

July 2006

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$35.00

[1] D.S. Stark, A. Croker and G.J. Steward: J. Phys. E: Sci. Instrum. Vol. 16 (1983), p.158.

[2] D.R. Schryer and G.B. Hoflund: Low-Temperature CO-Oxidation Catalysts for Long-Life CO2 Lasers, NASA Conf. Pub. 3076, Washington, (1990).

[3] J.A. Aderson: J. Chem. Soc. Faraday Trans. Vol. 88 (1992), p.1201.

[4] M. Haruta, S. Tsubota, T. Kobatashi, el al.: J. Catal. Vol. 144 (1993), p.175.

[5] C. Cantalini, M. Faccio, G. Ferri and M. Pelino: Sens. Actuators B Vol. 19 (1994), p.437.

[6] N. Chen, X. Yuang, E. Liu and L. Huang: Sens. Actuators B Vol. 66 (2000), p.178.

[7] E. Comini, M. Ferroni, V. Guidi, G. Fagila, G. Martinelli and G. Sbervrglieri: Sens. Actuators B Vol. 84 (2002), p.26.

[8] L. Satyanarayana, K. Madhusudan and S. Manorama: Sens. Actuators B Vol. 89 (2003), p.62.

[9] M. Haruta, N. Yamada, T. Kobayashi and S Iijima: J. Catal. Vol. 115 (1989), p.301.

[10] G.C. Bond, D. Thompson: Catal. Rev. Sci. Eng. Vol. 41 (1999), p.319.

[11] M. Khoudiakov, M. Gupta and S. Deevi: Nanontechology Vol. 15 (2004), p.987.

[12] D. Horvath, L. Tothb and L. Guczi: Catal. Letters Vol. 67 (2000), p.117.

[13] G. Avgouropoulos, T. Ioannides, Ch. Papadopoulou, J. Batista, S. Hocevar and H.K. Matralis: Catal. Today Vol. 75 (2002), p.157.

[14] S. Daniells, A. Overweg, M. Makkee and J. Moulijn: J. Catal. Vol. 230 (2005), p.52.

[15] E. Park and J. Lee: J. Catal. Vol. 186 (1999), p.1.

[16] G. Wang, H. Lian, W. Zhang, D. Jiang and T. Wu: Kin. Catal. Vol. 43 (2002), p.433.

[17] G. Neri, A. Bonavita, G. Rizzo, S. Galvagno, N. Donato and L.S. Caputi: Sen. Actuators B Vol. 101 (2004), p.90.

[18] N. Funazaki, A. Hemmi, S. Ito, Y. Asano, S. Yamashita, T. Kobayashi and M. Haruta: Sens. Actuators B Vol. 13-14 (1993), p.536.

[19] G. Weiglab and J. Heitbaum: Sen. Actuators B Vol. 18 (1994), p.93.

[20] X. Niu, W. Du and W. Du : Sen. Actuators B Vol. 99 (2004), p.405.

[21] P. Stefanov, I. Avramova, D. Stoichev, N. Radic, B. Grbic and Ts. Marinova: Appl. Surf. Sci. Vol. 245 (2005), p.65.

DOI: 10.1016/j.apsusc.2004.09.120

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