Nanocatalytic particles of Gold (Au), Platinum (Pt), and Palladium (Pd) are highly reactive at room-temperature and can be used to generate heat in micro-scale devices for portable power generation. No pre-heating is required for light-off and high steady-state operating temperatures can be sustained with high density alcohol-air premixtures. Preliminary experiments conducted in our lab and those reported by Hu and co-workers at Oak Ridge National Lab have measured peak operating temperatures ∼ 300–500 degrees Celsius using near-stoichiometric methanol/air and ethanol/air premixtures at ambient initial temperature and atmospheric pressure. The effect of particle size, morphology, mass loading, and flow residence time are reported for different mixture stoichiometries. Temperature measurements and gas species analyses are also tabulated. Interestingly, smaller particles were observed to be less reactive than larger particles for the same mass loadings for select conditions. Materials characterization of the particles has also been conducted to characterize the specific surface area of the catalyst and evaluate the importance of particle sintering, morphology changes, and particle distribution.
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ASME 2007 2nd Energy Nanotechnology International Conference
September 5–7, 2007
Santa Clara, California, USA
Conference Sponsors:
- Nanotechnology Institute
ISBN:
0-7918-4799-3
PROCEEDINGS PAPER
The Effects of Particle Size, Morphology, and Mass Loading on the Reactivity of Nanocatalytic Particles
Brian Fellon,
Brian Fellon
Drexel University, Philadelphia, PA
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Christopher Ricciuti,
Christopher Ricciuti
Drexel University, Philadelphia, PA
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Tiffany Miller,
Tiffany Miller
Drexel University, Philadelphia, PA
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Howard Pearlman
Howard Pearlman
Drexel University, Philadelphia, PA
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Brian Fellon
Drexel University, Philadelphia, PA
Christopher Ricciuti
Drexel University, Philadelphia, PA
Yi Ma
Drexel University, Philadelphia, PA
Tiffany Miller
Drexel University, Philadelphia, PA
Howard Pearlman
Drexel University, Philadelphia, PA
Paper No:
ENIC2007-45049, pp. 5-11; 7 pages
Published Online:
March 9, 2009
Citation
Fellon, B, Ricciuti, C, Ma, Y, Miller, T, & Pearlman, H. "The Effects of Particle Size, Morphology, and Mass Loading on the Reactivity of Nanocatalytic Particles." Proceedings of the ASME 2007 2nd Energy Nanotechnology International Conference. ASME 2007 2nd Energy Nanotechnology International Conference. Santa Clara, California, USA. September 5–7, 2007. pp. 5-11. ASME. https://doi.org/10.1115/ENIC2007-45049
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