Synthesis of mesoporous-zeolite materials using Beta zeolite nanoparticles as precursors and their catalytic performance in m-xylene isomerization and disproportionation
作者: Fatima Zohra Chaida-ChenniFatima BelhadjMaría Soledad Grande CasasCarlos Márquez-ÁlvarezRachida HamachaAbdelkader BengueddachJoaquín Pérez-Pariente
作者单位: 1Laboratoire de Chimie des Matériaux, Université Oran1, BP, 1524, El-Mnaouer, Algeria
2Département de Chimie, Faculté des Sciences et Informatique, Université Hassiba Ben Bouali, Chlef, Algeria
3Instituto de Catálisis y Petroleoquímica, ICP-CSIC, C/Marie Curie 2, 28049, Madrid, Spain
刊名: Applied Catalysis A, General, 2018, Vol.568 , pp.148-156
来源数据库: Elsevier Journal
DOI: 10.1016/j.apcata.2018.10.005
关键词: Hierarchical BetaBeta zeoliteBeta nanoparticlesMicro-mesoporous materialsM-xylene isomerization
原始语种摘要: Abstract(#br)Hierarchical Beta nanozeolites with the properties of both Beta nanozeolite and mesoporous material were prepared by two different methods: (1) Direct Hydrothermal Method (DHM) by the assembly of nanocrystals of preformed Beta seeds in the presence of the surfactant P123 under hydrothermal conditions, (2) Acidification of Beta seeds suspension (without the use of the mesopore directing agent). For the two methods, the effect of crystallization time of Beta nanozeolite precursor (seeds) was studied: 6, 12 and 24 h. The obtained materials were characterized using nitrogen sorption measurements, thermogravimetric analysis (TGA), X-ray diffraction (XRD), transmission electron microscopy (TEM), ammonia Temperature Programmed Desorption (NH 3 -TPD) and adsorption/desorption of...
全文获取路径: Elsevier  (合作)
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影响因子:3.41 (2012)

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关键词翻译
关键词翻译
  • isomerization 异构化
  • zeolite 沸石
  • catalytic 催化的
  • xylene 二甲苯
  • Beta β
  • mesopore 中型孔隙
  • preformed 预成型
  • materials 工业三废
  • adsorption 吸附
  • pyridine 吡啶