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The application of carbon templating to the preparation of cerium oxide and cerium–zirconium mixed oxide was investigated. Impregnation of a highly mesoporous activated carbon (Darco KB-B) with aqueous cerium nitrate, followed by calcination to remove the template, afforded nanocrystalline ceria with a surface area of up to 148 m2/g. Ceria-zirconia with surface area of 148 m2/g was similarly prepared...
The thermal stability of mercury captured by ash was studied by sampling ash throughout the collection train of two Kentucky power plants. Sampling occurred over multiple years and involved both fresh and archived samples. During one ash collection episode, sampling was from the combustion of a single pulverized coal feed. The other collections involved ash from blended feeds. Ash was collected from...
The effect of low-concentration SO 2 on the adsorption of NO over activated carbon was studied using adsorption--desorption profiles obtained during thermal analysis-mass spectrometry. Using three different gas mixtures and adsorption temperatures between 293 and 413 K with NO and SO 2 as the reactants, it was determined that NO 2 and SO 2 were the primary adsorbed...
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