Synthesis of intermetallic transition metal-main group metal nanoparticles in ionic liquids

本文将研究基于有机金属前驱体化学的过渡金属/主族金属组合TM/E （TM = Fe, Ni; E = Al, Ga, In）的金属间即双金属纳米粒子（NPs）的合成，并特别强调离子液体（ILs）作为非常规介质的反应控制。将NPs沉积到支架上。将研究其在加氢催化中的应用。在低温、快速、节能的氢解或微波加热技术中，ILs为前驱体分解和簇/纳米颗粒生长动力学的反应控制提供了特定的机会，而不需要额外的稳定剂，这是超越目前技术水平的预期进展。因此，ILs应该有助于克服使用传统溶剂和自下而上纳米合金和纳米颗粒合成技术的现有化学策略的局限性。IL衍生纳米合金的化学和物理性质，例如在催化方面，在附加稳定剂的存在下，预计将与传统湿化学方法获得的类似纳米合金不同。

The synthesis of intermetallic, i.e. bi-metallic, nanoparticles (NPs) with transition metal/main group metal combinations TM/E (TM = Fe, Ni; E = Al, Ga, In) based on organometallic precursor chemistry will be investigated with special emphasis on the reaction control given by ionic liquids (ILs) as a non-conventional medium. The deposition of the NPs onto supports will be done. Applications in hydrogenation catalysis will be investigated.The expected progress beyond the state of the art is seen in the specific opportunities offered by ILs for reaction control of precursor decomposition and cluster/nanoparticle growth kinetics without the need of additional stabilizers by low-temperature, fast and energy-saving hydrogenolysis or microwave heating techniques. Thereby ILs should help to overcome limitations of existing chemical strategies using conventional solvents and techniques for bottom-up nanoalloy and nanoparticle synthesis. The chemical and physical properties of IL derived nanoalloys, e.g., in catalysis, are expected to be different from similar nanoalloys obtained by conventional wet-chemical methods in the presence of additional stabilizers.