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多孔性配位高分子のマクロ構造制御による固体触媒の創成

通过控制多孔配位聚合物的宏观结构制备固体催化剂

基本信息

批准号：
14F04034
负责人：
北川進
金额：
$ 1.47万
依托单位：
Kyoto University
依托单位国家：
日本
项目类别：
Grant-in-Aid for JSPS Fellows
财政年份：
2014
资助国家：
日本
起止时间：
2014-04-25 至 2016-03-31
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-14F04034/
关键词：
Porous Materials Coordination Polymers Grain Boundary Phase Change Porous materials Coordination polymers Grain boundary Phase change

项目摘要

In this research, we tried to tackle macro-structuring of PCP-based catalysts by "coordination-replication process (CRP)" and "ceramic-mimicking engineering (CME)" as shown below.a. Macro-structuring of PCP by CRPWe utilized shellfish as Ca2+ precursors to make Ca-based PCPs with macroporous structures. The initial shells were of hierarchical macropores with smooth surfaces. After reacting with squaric acid, the obtained samples showed macroporous structures that were similar to the initial shell. The large amount of nano-/microcrystals were created on the surface, suggesting that the shell has been successfully replicated to Ca-based PCPs. This result indicates that biomineral can be converted to Ca-based PCPs with keeping their macroporous structure.b. Macro-structuration of PCP by CMECeramics are well-known for their outstanding mechanical stability. We aimed to obtain PCP-catalyst with outstanding mechanical stability by CME. The prepared Al-PCP nanoparticles were tightly assembled by gravity, and then obtained solids were activated at high temperature for long term. Finally, ca. 1 cm diameter of a bulk pellet was obtained. High-magnification image illustrates that significant amount of macropores are created by assemble of nanoparticles. This result suggests a unique way to obtain macroporous PCPs by CME.In summary, we have successfully prepared macroporous PCPs by CRP and CME. These macro-structuring methods would be used for enhancement of catalytic activity of PCPs.

在这项研究中，我们试图通过配位复制过程(CRP)和仿瓷工程(CME)来解决PCP基催化剂的宏观结构问题，如下所示。以贝类为钙前驱体制备具有大孔结构的钙基五氯酚。最初的贝壳是具有光滑表面的分级大孔。与方酸反应后，得到的样品具有与初始壳相似的大孔结构。表面生成了大量的纳米/微晶，表明壳层已成功复制到钙基PCP上。这一结果表明，在保持其大孔结构的情况下，生物矿物可以转化为钙基PCP。CMECeramics对PCP的宏观构型以其优异的机械稳定性而闻名。我们的目标是通过CME获得具有优异机械稳定性的PCP催化剂。制备的Al-PCP纳米粒子通过重力紧密组装，然后在高温下长期活化得到的固体。最终得到了直径约1厘米的散装球团。高倍率图像显示，大量的大孔是通过纳米颗粒的组装而产生的。这一结果为化学微萃取大孔PCPs提供了一种独特的方法。综上所述，我们成功地利用CRP和CME制备了大孔PCPs。这些大结构方法将被用于提高五氯酚的催化活性。