全文总字数:2839字
1. 毕业设计(论文)的内容和要求
本课题以苯甲醇催化选择性氧化制备苯甲醛为出发点,采用生物质壳聚糖衍生策略制备氮掺杂碳分散单金属钌催化剂并进行相应表征,并在高压反应釜中进行催化苯甲醇氧化实验部分要求:1)具备文献检索、阅读和信息综合分析的能力。
(2)能够运用化学化工基础理论解决工艺问题。
(3)掌握使用XRD分析催化剂的体相结构,SEM、TEM考察催化剂的形貌。
2. 实验内容和要求
内容:制备不同负载量的钌基催化剂,并进行相关的催化剂表征,然后分别用它们进行苯甲醇选择性氧化实验部分。
要求:催化剂的制备方法为硼氢化钠还原法,并且要在苯甲醇氧化实验部分中得出具有规律性的数据并进行分析。
3. 参考文献
1. Yan, H. et al. Atomic engineering of high-density isolated Co atoms on graphene with proximal-atom controlled reaction selectivity. Nat. Commun. 9, 3197 (2018). 2. Wei, H. et al. FeOx-supported platinum single-atom and pseudo-single-atom catalysts for chemoselective hydrogenation of functionalized nitroarenes. Nat. Commun. 5, 5634 (2014). 3. Zhang, B. et al. Stabilizing a platinum1 single-atom catalyst on supported phosphomolybdic acid without compromising hydrogenation activity. Angew. Chem. Int. Ed. 55, 83198323 (2016). 4. Guo, X. et al. Direct, nonoxidative conversion of methane to ethylene, aromatics, and hydrogen. Science 344, 616619 (2014). 5. Shan, J. et al. Mild oxidation of methane to methanol or acetic acid on supported isolated rhodium catalysts. Nature 551, 605608 (2017). 6. Lin, L. et al. Low-temperature hydrogen production from water and methanol using Pt/alpha-MoC catalysts. Nature 544, 8083 (2017). 7. Lang, R. et al. Hydroformylation of olefifins by a rhodium single-atom catalyst with activity comparable to RhCl(PPh3)3. Angew. Chem. Int. Ed. 55, 1605416058 (2016). 8. Zhao, P. et al. Entrapped single tungstate site in zeolite for cooperative catalysis of olefifin metathesis with bronsted acid site. J. Am. Chem. Soc. 140, 66616667 (2018). 9. Yin, P. et al. Single cobalt atoms with precise N-Coordination as superior oxygen reduction reaction catalysts. Angew. Chem. Int. Ed. 55, 1080010805 (2016). 10. Chen, Y. et al. Enhanced oxygen reduction with single-atomic-site iron catalysts for a zinc-air battery and hydrogen-air fuel cell. Nat. Commun. 9, 5422 (2018). 11. Zhao, C. et al. Ionic exchange of metal organic frameworks to access single nickel sites for effificient electroreduction of CO2. J. Am. Chem. Soc. 139, 80788081 (2017). 12. Qiao, B. et al. Single-atom catalysis of CO oxidation using Pt1/FeOx. Nat. Chem. 3, 634641 (2011). 13. Wan, J. et al. Defect effects on TiO2 nanosheets: stabilizing single atomic site Au and promoting catalytic properties. Adv. Mater. 30, 1705369 (2018). 14. Wei, H. et al. Iced photochemical reduction to synthesize atomically dispersed metals by suppressing nanocrystal growth. Nat. Commun. 8, 1490 (2017).
4. 毕业设计(论文)计划
第1~2周:查阅文献,搜集相关资料,了解本课题的相关知识及研究进展,并根据课题研究的内容,构想初步的实验思路和草案; 第3~4周:确定工作任务、研究思路、方法、方案,制定任务书,并完成开题报告; 第5~8周:制备催化剂并进行相关表征; 第9~9周:结合期中教学检查,对毕业论文工作进展情况进行检查,总结实验中遇到的问题; 第10~12周:在高压反应釜上进行苯甲醇选择性氧化实验部分; 第13~15周:讨论总结实验结果,并完成论文,准备论文答辩。
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