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Digitale Medien

On the possibility of a significant temperature gradient in supported metal catalysts subjected to microwave heating (1997)

Perry, W.L. ; Cooke, D.W. ; Katz, J.D. ; [weitere]

Springer

Catalysis letters 47 (1997), S. 1-4

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Details

ISSN: 1572-879X

Quelle: Springer Online Journal Archives 1860-2000

Thema: Chemie und Pharmazie

Notizen: Abstract A simple model is presented which estimates the temperature gradients in microwave-irradiated 1 and 100 nm metallic particles which are typically found in a supported metal catalyst structure. The two particle sizes allow limiting case calculations of the temperature rise over the range of typical particle sizes. The model, based on a simple steady-state energy balance, uses the assumption that the particles only lose heat to the gas-phase, and not the support matrix. This represents a best-case scenario for a temperature gradient relative to the surroundings. The model indicates that the temperature gradient is insignificant and this conclusion is supported by an experiment in which the microwave-driven carbon monoxide reaction acts as an in situ temperature probe.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1023/A:1019020013544

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