| Co2+/Cd2+复合材料的合成及其催化性质 | |
| Synthesis and Catalytic Properties of Co2+/Cd2+ Composite Materials | |
| 摘要: 在相同的反应条件下，基于配体（Hpypymba=4-（（3-（吡嗪-2-基）-1H-吡唑-1-基）甲基）苯甲酸）和过渡金属离子（Co（Ⅱ）、Cd（Ⅱ））合成同构金属掺杂材料[CoxCd1-x（pypymba）2]n（0 ≤ x ≤ 1）（配合物1~5），运用粉末X射线衍射（PXRD）、紫外等分析手段对其结构与形貌进行表征。将得到的MOFs作为催化剂载体负载Ag离子进行4-硝基苯酚的还原反应。研究表明含Co2+的化合物1是良好的催化剂载体，随着配合物中Cd2+比例的增加，反应速率下降，甚至对反应有一定的抑制效果。该MOFs对于Ag的最大负载量为47%（w/w），Ag@compound 1经4次循环后依然有96%的催化效率。 | |
| 关键词: 配位化学 金属有机框架 金属掺杂 催化 | |
| 基金项目: 国家自然科学基金（No.21401151）、四川省科技支撑计划（No.2015GZ0233）、成都市科技局基金资助项目（No.2015-HM01-00336-SF）和西南交通大学研究生院创新实践项目（No.2018CYPY07）资助。 | |
| Abstract: In the same reaction conditions, the isotactic metal-doped[CoxCd1-x(pypymba)2]n (0 ≤ x ≤ 1) (compounds 1~5) were synthesized based on ligand (Hpypymba=4-((3-(pyrazin-2-yl)-1H-pyrazol-1-yl)-methyl)benzoic acid) and a transition metal ion (Co(Ⅱ), Cd(Ⅱ)). The structure and morphology were characterized by powder X-ray diffraction (PXRD) and UV-visible scanning. The obtained MOFs were used as a catalyst carrier to carry Ag ions to carry out a reduction reaction of 4-nitrophenol. The results showed that the Compound 1 which contained Co2+ was the better catalyst carrier. As the proportion of Cd2+ in compounds increased, the reaction rate decreased, and even the reaction has a certain inhibitory effect. The maximum loading of the MOFs for Ag was 47%(w/w), and 96% of the catalytic efficiency after 4 cycles. | |
| Keywords: coordination chemistry metal-organic frameworks metal-doped catalyst | |
| 投稿时间：2019-08-01 修订日期：2019-10-21 | |
| 摘要点击次数: 1904 | |
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| 刘冬宁,王萃娟,肖玉美,刘成,罗丹,朱子馨,陈霜,王尧宇.Co2+/Cd2+复合材料的合成及其催化性质[J].无机化学学报,2019,35(12):2193-2199. | |
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