Microwave fabrication of MFI zeolite crystals with a fibrous morphology and their applications
Microwave fabrication of MFI zeolite crystals with a fibrous morphology and their applications
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DOI：
10.1002/anie.200461403
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发表时间：
2005-01-01
影响因子：
16.6
通讯作者：
Park, MS
中科院分区：
文献类型：
--
作者：
Hwang, YK;Chang, JS;Park, MS
1.2. 合成Ti-MFI和Fe-MFI分子筛（Ti-MFI- mw），温度为438 K，微波辐射功率为600 W，反应时间为10-120 min。反应混合物的摩尔组成为1 TEOS: 0.2 TPAOH: 0-0.05 TPOT或0-0.05 FeCl3: 1异丙醇：22.2 H2O。在一个典型的合成批次中，TEOS和TPAOH在蒸馏水中均匀混合并搅拌。在一个单独的容器中，在室温下搅拌，将TPOT或FeCl3和异丙醇加入该混合物中。将所得混合物在室温下搅拌2小时，得到清澈的溶液。随后，使用微波合成系统（CEM Corp., MARS-5），在600 W微波功率下，在438 K下加热90 min。在合成Sn-MFI和Zr-MFI时，将TEOS和TPAOH在蒸馏水中均匀混合并搅拌。在一个单独的容器中，将金属醇酮、乙酰丙酮和异丙醇混合1h，在室温下搅拌，将该溶液加入另一溶液中。将所得混合物在室温下搅拌2小时，得到清澈的溶液。反应混合物的摩尔组成为1 TEOS: 0.2 TPAOH:(1.8~ 7.7) x10-3 M (OR) 4: 0.1异丙基
1.2. Synthesis Ti-MFI and Fe-MFI zeolites (Ti-MFI-MW) were synthesized at 438 K for 10-120 min under microwave irradiation at 600 W. The molar composition of the reaction mixture was 1 TEOS: 0.2 TPAOH: 0-0.05 TPOT or 0–0.05 FeCl3: 1 isopropyl alcohol: 22.2 H2O. In a typical synthesis batch, TEOS and TPAOH were mixed homogeneously in distilled water with stirring. In a separate vessel, TPOT or FeCl3 and isopropyl alcohol were added into this mixture at room temperature with stirring. The resulting mixture was stirred for 2 h at room temperature, giving clear solution. Subsequently, the mixture was heated at 438 K for 90 min under 600 W of microwave power with the microwave synthesis system (CEM Corp., MARS-5). For the synthesis of Sn-MFI and Zr-MFI, TEOS and TPAOH were mixed homogeneously in distilled water with stirring. In a separate vessel, metal alkoxide (s), acetylacetone and isopropyl alcohol were mixed for 1h, and this solution as added into the other one at room temperature with stirring. The resulting mixture was stirred for 2 h at room temperature to get a clear solution. The molar composition of the reaction mixture was 1 TEOS: 0.2 TPAOH:(1.8~ 7.7) x10-3 M (OR) 4: 0.1 isopropyl