金属有机骨架负载纳米金钯(Au/Pd)复合功能材料组装与催化转化碳氧化物(CO/CO2)性能研究

There is a great challege topic on the composite-materials assembly of Au/Pd Nanocrystals coating the metal-organic-frameworks (MOFs) and the catalytic-inversion function for carbon oxide (CO/CO2) in the field of Nano-materials, Supramolecular science and catalylic technology. That MOFs coated by Au/Pd Nanocrystals enhance the in-stiu catalytic-transfertion function brings new ideas in our item owing to their large BET, uniform-pore-size, highly porosity and powerful-absorption. Our work is to design MOFs with the molecular interaction and adjust the interacting-molecular states so as to enhance MOFs activate, boost the catalylic efficiency of Au/Pd Nanocrystals transferring CO/CO2 to small organic-molecules (CH3OH,CH4), construct the catalylic composite-materials of mic & mes MOFs coated by Au/Pd. The catalylic mechanism would be explored in the inter-acting molecules induceing and activating the metal-organic frameworks so as to enhance the catalylic efficiency of Au/Pd Nanocrystals. Au/Pd Nanocrystals catalylic rule on MOFs' porous effect enchancing their function, is sum up and to get new the Au/Pd@MOFs compisite catalyst, and the basic knowledge and basic method on Au/Pd@MOFs nanocrystals composite materials is to be proposed. All mentioned above improve our blossoming Inorganic Chemistry and Metal-organic materials science junction,enhance the nano-materials and the catalytic-tchnology further progress.

金属有机骨架负载金钯纳米粒子复合功能材料组装与催化碳氧物(CO/CO2)转化有机分子研究是纳米材料、超分子科学和催化技术交叉领域挑战性课题。比表面大、孔径均一、空隙率高、吸附储存能力强的金属有机骨架负载金钯纳米粒子实现原位催化是本项目创新。设计分子相互作用金属有机骨架，调控分子状态增强金属有机骨架活性,提高纳米金/钯催化CO/CO2转化有机产物（CH3OH.CH4）效率，组装微介孔金属有机纳米金/钯复合催化材料。探索分子诱导激活金属有机骨架活性而增强纳米金/钯催化性能微观机理，归纳金属有机骨架材料孔效应与纳米金/钯催化功能变化宏观规律，获得新型金属有机骨架负载纳米金/钯复合功能催化剂,提出金属有机骨架复合纳米Au、Pd功能材料组装与催化转化碳化物(CO/CO2)基础知识和基本方法。促进我国优势学科无机化学与金属有机材料科学强强交叉和融合，发展和丰富纳米催化技术内容。

金属有机骨架（MOFs）负载金钯纳米粒子复合催化剂设计组装与催化碳氧化物(CO2)转化有机分子研究是纳米科学、分子科学和催化技术交叉领域拓展和挑战性课题。金属有机骨架（MOFs）比表面大、孔径均一、空隙率高、吸附储存能力强，负载金钯纳米粒子实现原位催化是本项目创新。. 调控组装形貌尺寸均一的锆基金属有机骨架UIO-66，封装核壳结构Au@Pd得到Au@Pd@UIO-66纳米球再负载Pt纳米粒子获得选择性很高催化CO2转化CO的单分散的球形催化剂Pt/Au@Pd@UIO-66。被封装的核壳结构Au@Pd使UIO-66球形尺寸变小并具有合金催化意义。研究结果报道在Small 2017, 1702812 DOI: 10.1002/smll.201702812。调控锆基金属有机骨架UIO-67， 形貌均一的八面体尺寸0.5-1um,采用H2,oleylamine, NaBH4 三种不同还原Au纳米粒子方法制备催化剂Au@UIO67,论证由H2还原的催化剂Au@UIO67-H2效果最优。这一结果报道在Chem. Commun., 2017, 53, 7953–7956。我们还研究了金属有机骨架催化剂对甲基橙、亚甲基蓝等染料催化降解效果，相关的结果报道在Appl Organometal Chem. 2017; e4097 DOI: 10.1002/aoc.4097；ChemPlusChem 2017, 82, 1182 – 1187；Bull. Chem. Soc. Jpn. 2017, 90, 1152–1156；Materials letters 2016, 184, 73–77等期刊；以及金属有机骨架微孔性能如：Microporous and Mesoporous Materials. 2014.197.72–76。. 金属有机骨架分子设计组装和形貌调控，获得理想催化剂载体，增强金/钯－金属有机骨架催化CO2转化目标产物（CO,CH3OH,CH4）效率。研究金/钯纳米粒子与金属有机骨架相互协同催化功能微观机理，总结金属有机骨架与纳米金/钯催化功能增强规律，获得新型金属有机骨架负载纳米金/钯复合功能催化剂组装及催化转化碳化物(CO/CO2)前沿知识，促进优势学科无机化学与材料科学强强交叉和融合，发展和丰富纳米催化技术内容。