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Desired amount of DL-malic acid was then added to boehmite sol in 2:1 ratio. The mixture was stirred vigorously at 80¡æ for 1 h and aged on water bath at 90¡æ for 3 h. The gel was then dried at 120¡æ for 6 h to obtain the dry gel followed by calcination at 500¡æ for 4 h to form stable mesoporous r-Al2O3 [10]. The sample was labeled as AM = (r-Al2O3 prepared using malic acid).

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loser_zhu(½ð±Ò+26, ·­ÒëEPI+1): 2011-08-16 10:18:53
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[ Last edited by sltmac on 2011-8-16 at 09:13 ]
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