TY - JOUR
T1 - In situ assembly of zeolite nanocrystals into mesoporous aggregate with single-crystal-like morphology without secondary template
AU - Fang, Yunming
AU - Hu, Haoquan
AU - Chen, Guohua
N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].
PY - 2008/3/11
Y1 - 2008/3/11
N2 - The formation of zeolite crystal its subsequent assembly into a mesoporous aggregate by enhancing the zeolite nucleation rate was demonstrated. ZSM-12 was selected that has micropores that are slightly larger and during the synthesis of ZSM-12 crystals and a mesoporous aggregate of ZSM-12 nanocrystals with a morphology similar to common ZSM-12 was obtained. The hydrothermal stability of ZSM-12 was tested by refluxing in boiling water for 120 hours with a sample-to-water ratio of 1:10 and by increasing the crystallization time to 8 days. The meso- and microstructure of mesoporous ZSM-12 was found to be stable during the treatments that was confirmed by powder X-ray diffraction images and scanning electron microscopy. The results indicate that the mesoporous ZSM-12 is highly hydrothermally stable that is important for the industrial catalytic applications.
AB - The formation of zeolite crystal its subsequent assembly into a mesoporous aggregate by enhancing the zeolite nucleation rate was demonstrated. ZSM-12 was selected that has micropores that are slightly larger and during the synthesis of ZSM-12 crystals and a mesoporous aggregate of ZSM-12 nanocrystals with a morphology similar to common ZSM-12 was obtained. The hydrothermal stability of ZSM-12 was tested by refluxing in boiling water for 120 hours with a sample-to-water ratio of 1:10 and by increasing the crystallization time to 8 days. The meso- and microstructure of mesoporous ZSM-12 was found to be stable during the treatments that was confirmed by powder X-ray diffraction images and scanning electron microscopy. The results indicate that the mesoporous ZSM-12 is highly hydrothermally stable that is important for the industrial catalytic applications.
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U2 - 10.1021/cm703265q
DO - 10.1021/cm703265q
M3 - RGC 21 - Publication in refereed journal
SN - 0897-4756
VL - 20
SP - 1670
EP - 1672
JO - Chemistry of Materials
JF - Chemistry of Materials
IS - 5
ER -