Amyn S. Teja

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A lattice-based model for solutions with solute-solvent association is extended to the calculation of phase equilibria in polymer-CO2 systems. The model requires a maximum of two adjustable parameters to correlate both cloud point and sorption data. Moreover, one of these parameters can be obtained from spectroscopic data. Application of the model is(More)
Catalytic ozonation of propanal at ambient temperatures (23-25 degrees C) was investigated by varying propanal and ozone concentrations and catalyst type. The catalysts tested included wood fly ash (WFA), magnetically separated ash, synthetic hematite and magnetite, and metal oxide nanoparticle impregnated activated carbon and peanut hull char. A power law(More)
A one-parameter model is presented for the thermal conductivity of nanofluids containing dispersed metallic nanoparticles. The model takes into account the decrease in thermal conductivity of metal nanoparticles with decreasing size. Although literature data could be correlated well using the model, the effect of the size of the particles on the effective(More)
Metal oxide nanoparticles are of practical interest in a variety of applications including high-density information storage [1], magnetic resonance imaging [2] and targeted drug delivery [3]. Many of these applications require particles of predetermined size and narrow size distribution. Processes that lead to particles with these characteristics are(More)
Monocrotaline, a pyrrolizidine alkaloid of chemotherapeutic interest, was successfully extracted from the crushed seeds of Crotalaria spectabilis using supercritical carbon dioxide and ethanol mixtures. Overall solubilities of the plant material in the supercritical fluid phase were as high as 1.1 mass percent, and monocrotaline solubilities were as high as(More)
Molecular dynamics and transition state theory predicts diffusion of molecules in nanoporous materials. To save computational time, the framework of the material is assumed rigid which may or may not be accurate. In our study, we systematically characterize the effect of framework flexibility on diffusion in model zeolites that exhibit different patterns of(More)
Lithium iron phosphate (LiFePO4) is a promising cathode material for lithium ion batteries because it can be synthesized from low cost starting materials, it is relatively non-toxic (compared with LiCoO2 or LiNiO2), and because it is intrinsically stable at potentials greater than 3.45 V [1]. The solidstate synthesis of LiFePO4 has therefore received much(More)
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