以球状纳米Cu2O为核心,直接牺牲其毒面的部分Cu2O,与溶液中的均苯三羧酸(H3BTC)配体反应,原位生成具有核壳结构的Cu2O@HKUST-1材料。采用O2程序升温脱附(O2-TPD)、H2程序升温还原(H2-TPR)及C0氧化反应对Cu2O@HKUST-1核壳材料的抗氧化能力进行了研究,证明金属一有机框架材料(MOFs)HKUST-1对反应气体起到富集、缓释作用,保护Cu2O核不被氧化,显著提高了其抗氧化能力。
Spherical nanometer Cu2O was employed as the core with partial of whose Cu2O on surface sacrificing, which reacted with benzene-1,3,5-triearboxylic acid (H3BTC) ligand in solution, forming the product of CUEO@HKUST-1 with core-shell structure in situ. The antioxidant ability of core-shell-structure CUEO@HKUST-1 was investigated by O2 temperature programmed desorption (O2-TPD), H2 temperature programmed reduction (H2- TPR) and CO oxidation reaction. The result shows that the Cu2O antioxidant ability is significantly increased. The metal-organic frameworks (MOFs) HKUST-1 could protect Cu2O from oxidation because of its enrichment and slow-release of reacting gas.