碳基纳米笼负载的新型复合催化剂构建及其性能研究

项目名称： 碳基纳米笼负载的新型复合催化剂构建及其性能研究

项目编号： No.21473089

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 数理科学和化学

项目作者： 王喜章

作者单位： 南京大学

项目金额： 90万元

中文摘要： 在刚结题的国家自然科学基金资助下，申请人在碳基纳米笼可控制备和能源导向的功能化研究方面取得重要进展，获得的碳基纳米笼具有表面积高、孔容大、石墨化程度好、表面缺陷丰富、便于掺杂调变等优点，且在多个催化反应中初步展示出优良的催化性能。在此基础上，本项目重点以费托合成制低碳烯烃、选择氧化苄醇制苯甲醛为探针反应，利用碳基纳米笼的电子结构易于掺杂调控、杂原子对催化活性组分具有配位或锚定作用等特点，着重构建碳基纳米笼负载的铁基、钌基纳米复合催化剂，探索构建规律，考察催化性能，深入研究催化性能与成分结构的关系(尤其是碳基纳米笼电子结构的影响)，揭示载体与活性组分的相互作用、催化剂的催化作用机理和调控机制，为设计和开发先进的新型碳基纳米复合催化剂提供科学依据，并优化出高性能的碳基纳米笼复合催化剂。

中文关键词： 碳基纳米笼；催化剂；费托合成；选择氧化；载体与活性组分相互作用

英文摘要： With the support of the just-finished NSFC project, some important progresses have been obtained in the controllable preparation of carbon-based nanocages and its energy-directed functionalization. For example, carbon-based nanocages with a series of peculiarities are prepared controllably, including high surface area, large pore volume, well-graphitized degree, rich surface defects, and adjustable hetero-atom content and status. Based on these research progresses, this NSFC application mainly focuses on the construction and catalytic properties of new carbon-based nanocages loaded catalysts for the two probe reactions of Fischer-Tropsch synthesis of light olefins and the selective oxidation of benzyl alcohol to benzaldehyde. Taking advantage of the adjustable electronic structures of nanocages by doping, as well as the coordination and anchoring effect of hetreo atom for catalytic active species, the nanocages as a novel catalyst support are used to construct the iron- or ruthenium-based composite catalysts. Their catalytic performance will be systematically investigated. The correlations between the catalytic performance and the composition and structures of the catalysts will be studied in depth， especially on the effects of the electronic structures of the nanocages.The interactions between the nanocage supports and the catalytic active species are also studied. The catalytic mechanism and regulation mechanisms will be explored tentatively. By this project, these results should be helpful to direct the design and development of the novel carbon nanocage-based catalysts with excellent performance. In addition, one can expect the creative and systematic achievements with self-owned intellectual property rights about the catalysts of carbon-based nanocages.

英文关键词： carbon-based nanocages;catalyst;Fischer-Tropsch synthesis;selective oxidation;interaction between support and active species