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Rapid high-temperature synthesis of SAPO-34 nanoparticles 被引量:7
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作者 mahdi dargahi Hossein Kazemian +2 位作者 Mohammad Soltanieh Sohrab Rohani Morteza Hosseinpour 《Particuology》 SCIE EI CAS CSCD 2011年第5期452-457,共6页
Decreasing particle size results in larger increase of external surface area and shorter diffusion path, both reducing mass and heat transfer resistances in catalysis and sorption. A rapid high-temperature hydrotherma... Decreasing particle size results in larger increase of external surface area and shorter diffusion path, both reducing mass and heat transfer resistances in catalysis and sorption. A rapid high-temperature hydrothermal synthesis method was developed to synthesize uniform nanoparticles of SAPO-34 zeolite with high crystallinity. To investigate the effects of temperature and synthesis time on purity and crys- tallinity of the final products, the crystallization temperature was increased from 468 to 673 K while the synthesis time was decreased from 24h to 45 rain. The products were characterized by XRD and SEM techniques. It was found that high temperature and short synthesis time reduce the particle size and change the morphology of the SAPO-34 final product. 展开更多
关键词 SAPO-34 Nanoparticles High-temperature synthesis XRDSEM
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