高效镧镍基钙钛矿催化剂设计、构筑及其在糠醛选择性加氢中的应用

项目名称： 高效镧镍基钙钛矿催化剂设计、构筑及其在糠醛选择性加氢中的应用

项目编号： No.51502297

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 一般工业技术

项目作者： 陈春

作者单位： 中国科学院合肥物质科学研究院

项目金额： 20万元

中文摘要： 本项目依托中科院科研大装置，以糠醛的高效转化及戊二醇的高选择性产出为目标，设计和构筑具有微纳结构的镧镍型钙钛矿复合氧化物(LaNiO3)材料。通过合成方法及条件的改变调节材料的组成、结构、表面性质，进而调控其催化性能；通过A、B位灵活取代改变材料的组成、价态、晶型、还原度、分散度、吸附方式，并通过多元素协同作用，达到改善LaNiO3的活性、选择性及稳定性的目的。揭示钙钛矿催化剂的元素组成、结构形态以及催化性能间的内在关联，通过微纳 复合材料的元素及结构设计，实现复合氧化物选择性加氢性能的优化。研究改性的镧镍型钙钛矿材料代替贵金属对糠醛催化加氢产物的选择性规律及催化机制，实现单一组分戊二醇的高选择性产出，并通过产氢与加氢同步转化工艺提高糠醛加氢的经济性。课题的开展将为戊二醇生产提供新的催化材料及工艺路线，也为我国丰富的生物质和稀土资源的高值化利用提供新的思路和方向。

中文关键词： 选择性加氢；糠醛；；钙钛矿；；纳米复合材料；戊二醇

英文摘要： The objective of this project is to design micro-nano structure perovskite lanthanum nickel oxide (LaNiO3) as high performance catalysts for selectively hydrogenation of furfural to pentanediol. In order to achieve controllable synthesis of the nanocomposite materials, the effect of preparation methods and synthesis conditions on the composition, morphology, and surface properties will been intensively investigated. The perovskite mateial composition, valence, crystal type, reduction , dispersion and reactant adsorption will be adjusted by replacing of La and Ni with other elements. Through synergistic effect of multiple elements, the activity, selectivity and stability of LaNiO3 can be improved, and the intinsic connection of element composition, struture and hydrogenation performance will also be revealed. On the basis of controllable synthesis, the synthesized perovskite materials will be used as catalysts in the process of furfural selective hydrogenation to pentanediol using a designed multifunctional catalytic reactor, in which hydrogen envoltion and hydrogenation will proceed simultaneously, and the catalytic mechanism of perovskite catalyst will be revealed. The current project will pave the way to new catalytic process for pentanediol production from biomass and provide new ideas and directions for high-value utilization of China's abundant biomass and rare earth.

英文关键词： selective hydrogenation;furfural;perovskite;nanocomposites;pentanediol