Surface modification of zeolite Y and me
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Conghua Liu; Xionghou Gao; Zhongdong Zhang; Haitao Zhang; Shuhong Sun; Youquan D
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Article
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2004
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Elsevier Science
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English
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After modifications of rare earth and phosphorus, the acidity density and the strength in the pores of zeolite Y (PREUSY) are improved effectively; the surface acidity is suitably reduced and weakened owing to the interaction of rare earth cation and phosphate anion. NH3-TPD analysis showed that the