Organometallic chemistry and heterogeneous catalysis: Sub-nano base metal catalysts.

与传统的氧化物负载催化剂不同，亚纳米粒子材料利用了更大的金属原子比表面积/单位质量比和量子化学效应，赋予了独特的反应性和电性，从而提高了活性/选择性。固定在可调谐金属氧化物载体上的定义明确的基本金属镍、钴、铁或钒的亚纳米尺寸金属颗粒将从定制的有机金属碳氢化合物中制备，提供颗粒大小控制和无杂原子颗粒。用漂移、XPS、扫描电子显微镜、XANES、EXAFS、拉曼、核磁共振、卢瑟福背散射和热等方法对催化剂进行了表征。对于与工业相关的加氢、脱氢、水煤气变换、费托合成反应，将进行粒度/活性/选择性关联。

Unlike traditional oxide-supported catalysts sub-nano particle materials exploit much bigger metal atom surface area/unit mass ratios and quantum chemical effects to give unique reactivity and electrical character, and so enhanced activity/selectivity. Well-defined sub-nano-size metal particles of base metals Ni, Co, Fe or V immobilised on tuned metal oxide supports will be prepared from tailored organometallic hydrocarbyl complexes, offering particle size control and heteroatom-free particles. DRIFTS, XPS, SEM/TEM, XANES, EXAFS, Raman, NMR, Rutherford backscattering and thermal methods will be used to characterise catalysts. Particle size/activity/selectivity correlation will be made for industry-relevant hydrogenation, dehydrogenation, water gas shift, Fischer Tropsch synthesis reactions.