Local structural and chemical characterization of self-healing copper nanoparticles as catalyst for pharmaceutical and and energy applicatio

SION-X (Cu2[(BO)(OH)2](OH)3), in the form of copper (Cu) nanoparticles (NP), is a very promising self-healing and sustainable catalyst for hydrolysis and hydrogenation reactions of widespread industrial applications (production of polymers, dyes, pharmaceuticals, or H2 for energy applications). However essential properties, as the structure, coordination, and oxidation state of Cu in the NP remain uncharacterized. We therefore propose to investigate the oxidation state and local structural environment of Cu in the as such SION-X, and after two important catalytic reactions, by means of X-ray Absorption Spectroscopy (XAS) at the Cu K-edge.

SION-X（化学式为Cu₂[(BO)(OH)₂](OH)₃），以铜（Cu）纳米颗粒（nanoparticles, NP）形式存在，是一款极具应用潜力的自修复型可持续催化剂，可用于水解与加氢反应，覆盖诸多工业应用场景，包括聚合物、染料、药物的生产以及能源领域的氢气制备。然而，该催化剂的关键属性——如纳米颗粒内铜的结构、配位环境与氧化态——仍未得到表征。因此，我们提出借助铜K边的X射线吸收光谱（X-ray Absorption Spectroscopy, XAS），对原始状态以及经过两种重要催化反应后的SION-X样品中铜的氧化态与局部结构环境进行研究。