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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
°®ÓëÓêÏÂ(½ð±Ò+1): ~£¡ 2011-08-16 08:51:07
loser_zhu(½ð±Ò+26, ·ÒëEPI+1): 2011-08-16 10:18:53
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