【摘 要】
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KL molecular sieves with different framework compositions were secondarily synthesized by substituting Si for Al with a solution of (NH4)2SiF6. The internal t
【出 处】
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Chinese Chemical Letters
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KL molecular sieves with different framework compositions were secondarily synthesized by substituting Si for Al with a solution of (NH4)2SiF6. The internal tetrahedron symmetric stretch frequency, at ~770 cm-1, is linear with the molar fraction of Al (XAl= Al/(Si+Al)) in the framework of KL samples: XAl = -7.309×10-3 (?70-760) + 0.3242.
KL molecular sieves with different framework compositions were secondarily synthesized by substituting Si for Al with a solution of (NH4) 2SiF6. The internal tetrahedron symmetric stretch frequency, at ~ 770 cm-1, is linear with the molar fraction of Al (XAl = Al / (Si + Al)) in the framework of KL samples: XAl = -7.309 × 10-3 (? 70-760) + 0.3242.
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