Acid/Vanadium-Containing Saponite for the Conversion of Propene into Coke: Potential Flame-Retardant Filler for Nanocomposite Materials
作者:Luca Ostinelli、Sandro Recchia、Chiara Bisio、Fabio Carniato、Matteo Guidotti、Leonardo Marchese、Rinaldo Psaro
DOI:10.1002/asia.201200268
日期:2012.10
of a V‐modified saponite material that did not contain any Brønsted acid sites (Na/V‐SAP). The surface‐acid properties of both samples (together with the fully acidic H‐SAP material and the Na‐SAP solid) were studied in the catalytic isomerization of α‐pinene oxide. The V‐containing solids were tested in the oxidative dehydrogenation reaction of propene to evaluate their potential use as flame‐retardant
含钒皂石样品是通过一锅法合成的,目的是制备可潜在用作聚合物复合材料填料的样品。这些钒改性的材料是由酸性载体通过采用合成策略制备的,该策略使我们能够引入分离的结构V物种(H / V-SAP)。通过XRD分析,DR-UV / Vis和FTIR光谱研究了在100 K下吸附的CO的材料的理化性质。将这些数据与不含任何布朗斯台德酸位点(Na / V-SAP)的V改性皂石材料进行了比较。在α-pine烯氧化物的催化异构化过程中,研究了这两种样品的表面酸性质(以及完全酸性的H-SAP材料和Na-SAP固体)。在丙烯的氧化脱氢反应中测试了含V的固体,以评估其作为聚合物复合材料的阻燃填料的潜在用途。仔细研究了调整Lewis /Brønsted酸位的存在的影响。包含布朗斯台德酸中心的含V皂石样品在氧化脱氢(ODH)反应中表现出最令人感兴趣的性能,因为它们甚至在773 K时也会产生焦炭。本文提供的催化数据表明H