Abstract
Carbon-supported platinum catalysts (Pt/C) were prepared by treatment of PtO2/C under different conditions: (a) heating at 380°C in air, argon and hydrogen; (b) electrochemical reduction in H2SO4; and (c) reduction with NaBH4. The effect of the preparation conditions on the structure and the catalytic activity of the catalysts for the electrooxidation of CH3OH in acid media was studied. The highest activity was achieved for the catalyst treated in air. The activity is determined by the crystal faces exposed at the particle surface as well as particle size and the partial oxidation of the carbon support.
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References
V.S. Bagotzky and Ju. B. Vassilyev, Electrochim. Acta 12 (1967) 1323.
B.D. McNicol, J. Electroanal. Chem. 118 (1981) 71.
P.A. Attwood, B.D. Mc. Nicol and R.T. Short, J. Appl. Electro-chem. 10 (1980) 213.
M. Enyo, K. Machida, A. Fukuoka and M. Ichikawa, in ‘Electrochemistry in Transition’ (edited by O. J. Murphy), Plenum, New York, pp. 359–369.
M. Watanabe, S. Saegusa and P. Stonehart, J. Electroanal. Chem. 271 (1989) 213.
K. Jakikozawa, J. Fuiji, J. Matsuda, K. Nishimura and J. Takasu, Electrochim. Acta 36 (1991) 973.
T. Frelink, W. Visser and J.A.R. van Veen, J. Electoanal. Chem. 382 (1995) 65.
B. Beden, F. Kadigran, C. Zamy and J.M. Zeger, ibid. 142 (1982) 171.
T. Frelink, W. Visser and J.A.R. van Veen, in press.
S. Motoo and N. Furuya, Kinzoku Hyomen Gijyutsu, J. Surf. finish. Metals 36 (1985) 386.
M. Watanabe, M. Uchida and S. Motoo, J. Electroanal. Chem. 229 (1987) 395.
H.P. Klug and Z.E. Alexander, ‘X-ray Diffraction Procedures for Polycristalline and Amorphous Materials’, J. Wiley & Sons, New York, (1974).
T. Biegler, D.A.J. Rand and R. Woods, J. Electroanal. Chem. 29 (1973) 269.
O. Stonehart, J. Appl. Electrochem. 22 (1992) 995.
K. Kinoshita, J.T. Zuindquist and O. Stonehart, J. Electroanal. Chem. 48 (1973) 157
F.G. Will, J. Electrochem. Soc. 112 (1965) 451.
P.C. Buswas, J. Nodasaka and M. Enyo, J. Appl. Electrochem. 26 (1996) 30.
K. Kinoshita, J. Electrochem. Soc. 137 (1996) 845.
J. Takasu, J. Fuiji, K. Jasuda, J. Iwanaga and J. Matsuda, Electrochim. Acta 34 (1989) 453.
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Stoyanova, A., Naidenov, V., Petrov, K. et al. Effect of preparation conditions on the structure and catalytic activity of carbon-supported platinum for the electrooxidation of methanol. Journal of Applied Electrochemistry 29, 1197–1203 (1999). https://doi.org/10.1023/A:1003482613323
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DOI: https://doi.org/10.1023/A:1003482613323