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Palladium particles growth on various aluminas (1989)

Légaré, P. ; Finck, F. ; Roche, R. ; [et al.]

Springer

The European physical journal 12 (1989), S. 19-22

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ISSN: 1434-6079

Keywords: 79.60

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract Pd was deposited from a filament onto anα-Al2O3 single-crystal. The Pd 3dP 5/2 binding energy change versus deposition time was used as a calibration of the Pd clusters size. The experiment was then reproduced onγ-Al2O3. The Pd 3d 5/2 binding energy showed that the clusters growth mechanism was now different. Thermal treatments produced a dispersion of the metal or a clusters size increase depending on the temperature or the nature of the support. Oxygen exposure dispersed Pd in every case. A mechanism is proposed to interpret this phenomenon.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF01426897

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