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loser_zhu

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Acidity measurement was carried out using Temperature Programmed Desorption technique (TPD) using ammonia as a probe molecule in the temperature range of 40¨C440¡æ. A 0.5 g of the catalyst was activated in air at 300¡æ for 1 h in a catalytic reactor. The catalyst was then cooled to room temperature in nitrogen atmosphere.

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shine6832

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loser_zhu(½ð±Ò+18, ·­ÒëEPI+1): 2011-08-17 15:14:46
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