Enhanced Catalytic Combustion Using Sub-micrometer and Nano-size Platinum Particles
| Autor: | Tiffany Miller, Jennifer Kadlowec, Christopher Ricciuti, Yi Ma, Howard Pearlman |
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| Rok vydání: | 2008 |
| Předmět: | |
| Zdroj: | Energy & Fuels. 22:3695-3700 |
| ISSN: | 1520-5029 0887-0624 |
| DOI: | 10.1021/ef800327m |
| Popis: | Sub-micrometer and nano-size catalytic particles are significantly more reactive than their bulk counterparts and can be used to enhance the performance of catalytic combustors. Their high specific surface areas (typically 1−200 m2/g) and unique morphologies contribute to their enhanced reactivity. Differences in adsorbed species and/or their distributions may also play an important role yet are not clear. The purpose of this study is to quantify the effects of particle size, catalyst loading, and flow residence time on the reactivity of methanol−air premixtures over dispersed platinum (Pt) nanoparticles. As such, experiments were conducted in an atmospheric flow tube reactor seeded with 2−5, 200, and 500 nm Pt particles distributed on a substrate made from deactivated fused silica wool. Temperature measurements and exhaust gas species analyses were obtained for the different size particles, catalyst loadings, and flow conditions. Materials characterization of the particles was also conducted, and scannin... |
| Databáze: | OpenAIRE |
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