Cu (II)-Containing Micro-Arc Oxidation Ceramic Layers on Aluminum: Formation, Composition, and Catalytic Properties

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The ceramic layers containing Cu(II) were prepared by Micro-arc Oxidation on aluminum under alkaline electrolyte (NaSiO3; Cu(Ac)2; Na2WO4; Na3PO4; Na2B4O7). Using x ray photoelectron spectroscopy, scanning electron microscopy, ultraviolet spectrophotometry and chemical oxygen demand analyzer on the film composition, structure and catalytic properties were characterized. The results showed that when the Cu2p peaks emerged in XPS pattern, the corresponding substances were CuO and Al2CuO4, it told us that there had the catalyst in the ceramic coating composition containing CuO. As can be seen from the SEM image analysis, with the pulse width increased, the ceramic layer surface volcanic hole size also increased and the area density trended to loose. Meanwhile, phenol oxidation test results demonstrated that with the pulse width parameter increasing, the catalytic effect of the micro-arc oxidation ceramic layers trended to increasing. However, at higher pulse width such as 750 microseconds, the conversion rate of phenol was weakened strongly.

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Edited by:

Hyungsun Kim, Jian Feng Yang, Chuleol Hee Han, Somchai Thongtem and Soo Wohn Lee

Pages:

21-24

Citation:

D. J. Liu et al., "Cu (II)-Containing Micro-Arc Oxidation Ceramic Layers on Aluminum: Formation, Composition, and Catalytic Properties", Materials Science Forum, Vol. 695, pp. 21-24, 2011

Online since:

July 2011

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$38.00

[1] G.L. Yang, X.Y. Lu and Y. Zh. Bai: J. Alloys Comp Vol. 345 (2002), p.196.

[2] A.L. Yerokhin, X. Nie and A. Leyland: Surf. Coat. Technol Vol. 130 (2000), p.195.

[3] A.L. Yerokhin, X. Nie and A. Leyland: Surf. Coat. Technol Vol. 122 (1999), p.73.

[4] P. Kurze, W. Krysmann and J. Schreckenbach: Cryst. Res. Technol Vol. 22 (1987), p.53.

[5] A.A. Voevodin, A.L. Yerokhin and V.V. Lyubimov: Surf. Coat. Technol Vol. 86-87 (1996), p.516.

[6] V.A. Sadykov, S.N. Pavlova and R.V. Bunina: Kinet. Katal Vol. 46 (2005), p.243.

[7] H.G. El-Shobaky: Appl. Catal. A: Gen Vol. 278 (2004), p.1.

[8] L. M. Tyrina, V. S. Rudnev and I. V. Lukiyanchuk: Dokl. Phys Chem Vol. 415 (2007), p.183.

[9] T. Wei, F. Yan and J. Tian: J. Alloys Comp Vol. 389 (2005), p.169.

[10] P. Massa, F. Ivorra and P. Haure: Catal. Comm Vol. 10 (2009), p.1706.

[11] I.U. Castro, F. Stübera and A. Fabregat: J. Hazard. Mater Vol. 163 (2009), p.809.

[12] V. D. Castro, C. Furlani and M. Gargano: J. Electron. Spectrosc Vol. 52(1990), p.415.