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Design of Functional Porous Matallosilicates from Single Molecular Precursors (SMP)

机译:从单分子前体(SMP)设计功能性多孔金属硅酸盐。

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With the decline in reserves of certain raw materials, coupled with the ever growing needs of the population, there is increased pressure on industries to devise novel synthetic processes. One way to improve the efficiency of those chemical processes is the design of a new generation of inorganic chemistry based catalysts. The sol-gel process, based on the so-called "chimie douce" chemistry, is one of the most promising technologies permitting the development of new generation of metallosilicate materials featuring porous organizations at the nanometric scale, a controlled stoechiometry and an excellent chemical homogeneity (atomic dispersion) of the active sites. The sol-gel method is, as it was achieved during this PhD work, able to produce innovative aluminosilicate catalysts, quite only constituted of intra-framework Al species and exhibiting a hierarchical multiporosity, as well as highly ordered mesoporous (2.0 nm ≤ pore size (Φ) ≤ 50.0 nm) zirconosilicate materials with very low Si/Zr ratios. Superior chemical homogeneity was obtained throughout the promising single-molecular precursor (SMP) strategy.
机译:随着某些原材料储备的减少,再加上人口需求的不断增长,对工业界提出新的合成工艺的压力越来越大。一种提高那些化学过程效率的方法是设计新一代的基于无机化学的催化剂。基于所谓的“ chimie douce”化学方法的溶胶-凝胶工艺是最有前途的技术之一,可以开发出新一代的金属硅酸盐材料,这些材料具有纳米级的多孔组织,可控的化学计量和出色的化学均质性(原子分散)的活性部位。溶胶-凝胶法,正如在本博士研究期间所实现的那样,能够生产创新的硅铝酸盐催化剂,该催化剂仅由骨架内的Al物种构成并表现出分级的多孔性,并且具有高度有序的中孔(2.0 nm≤孔径) (Φ)≤50.0 nm)具有非常低的Si / Zr比的锆硅酸盐材料。在整个有前途的单分子前体(SMP)策略中均获得了卓越的化学均质性。

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