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

有机金属化学和多相催化：亚纳米贱金属催化剂。

• 批准号: 1929715
• 金额: --
• 依托单位: Durham University
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2017
• 资助国家: 英国
• 起止时间: 2017 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-1929715
• 关键词: Organometallic; chemistry; heterogeneous; catalysis; Sub

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.

与传统的氧化物负载型催化剂不同，亚纳米颗粒材料利用更大的金属原子表面积/单位质量比和量子化学效应来提供独特的反应性和电特性，从而增强活性/选择性。固定在调谐金属氧化物载体上的基本金属Ni、Co、Fe或V的明确限定的亚纳米尺寸金属颗粒将由定制的有机金属烃基络合物制备，提供粒度控制和无杂原子的颗粒。将使用DRIFTS、XPS、SEM/TEM、XANES、EXAFS、拉曼、NMR、卢瑟福背散射和热方法来表征催化剂。粒度/活性/选择性相关性将用于工业相关的氢化、脱氢、水煤气变换、费托合成反应。