Cu2O@HKUST-1核壳结构材料的制备及其抗氧化性能 |
Cu2O@HKUST-1 Core-Shell Structure Materials: Preparation and Antioxidant Capacity |
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摘要: 以球状纳米Cu2O为核心,直接牺牲其表面的部分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CO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-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。 |
关键词: HKUST-1 Cu2O 核壳结构 抗氧化 |
基金项目: 国家自然科学基金(No.21561020,21261017)、江西省自然科学基金(No.20122BAB213003,20132BAB203009,20132BAB213004,20133ACB20001)和江西省教育厅自然科学基金(No.GJJ11012)资助项目。 |
Abstract: Spherical nanometer Cu2O was employed as the core with partial of whose Cu2O on surface sacrificing, which reacted with benzene-1,3,5-tricarboxylic acid(H3BTC) ligand in solution, forming the product of Cu2O@HKUST-1 with core-shell structure in situ. The antioxidant ability of core-shell-structure Cu2O@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. |
Keywords: HKUST-1 Cu2O core-shell antioxidant capacity |
投稿时间:2016-03-23 修订日期:2016-04-16 |
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寇博宇,陈超,池佳,陈恒泽,张宁.Cu2O@HKUST-1核壳结构材料的制备及其抗氧化性能[J].无机化学学报,2016,32(7):1149-1153. |
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