...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>ACS Sustainable Chemistry & Engineering >Comparison of Mechanochemistry vs Solution Methods for Synthesis of 4,4′-Bipyridine-Based Coordination Polymers
【24h】

Comparison of Mechanochemistry vs Solution Methods for Synthesis of 4,4′-Bipyridine-Based Coordination Polymers

机译：基于4,4'-硼吡啶的配位聚合物合成的机械化学对溶液方法的比较

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Coordination polymers (CPs) are inherently modular because they are typically comprised of metal-based nodes and organic linker ligands. The resulting ability to control the pore size and pore chemistry results in CPs being of interest in storage, separation, and catalysis. CPs are generally synthesized by solution methods such as solvent diffusion and solvothermal methods; however, these methods can be time-consuming and lead to solvent waste. Mechanochemistry offers a greener and more sustainable approach, but it remains understudied in the context of CPs. This is especially the case for CPs, which contain 4,4′-bipyridine (bipy), the most widely used linker ligand. Herein, we compare the mechanochemistry vs slurry vs solution methods for the synthesis of five CPs formed by a 1:1 ratio of bipy and M~(II)(NO3)2·xH2O, (M~(II) = Co, Ni, Zn, x = 6; M~(II) = Cu, x = 3; M~(II) = Cd, x = 4). We observed that ball milling and twin-screw extrusion both offer high-yield, low-waste routes to the same CP products prepared from solution, but the water slurry approach was found to be ineffective. The isolated CPs were found to exhibit high thermal stability (≥250 °C) and good compression resistance (≥350 bar). In addition, they have potential utility as sorbents for vapor separation or as precursors to form higher-dimensional CP structures.
机译：协调聚合物（CPS）本质上是模块化的，因为它们通常由基于金属的节点和有机连接配体组成。所得控制孔径和孔化学的能力导致储存，分离和催化感兴趣的CPS。 CPS通常通过溶液方法如溶剂扩散和溶剂热方法合成;然而，这些方法可能是耗时的并且导致溶剂废物。机械化学技术提供更绿和更可持续的方法，但在CPS的背景下仍然被描述。尤其是CPS的情况，含有4,4'-硼啶（Bipy），最广泛使用的接头配体。在此，我们将机制VS浆液与浆液对合成的三种Cps的合成，由Bipy和M〜（II）的1：1的比例（NO 3）2·XH2O，（M〜（II）= CO，Ni，Ni，Ni Zn，x = 6; m〜（ii）= cu，x = 3; m〜（ii）= cd，x = 4）。我们观察到球磨和双螺杆挤出都提供高产，低垃圾路线到由溶液制备的相同CP产品，但发现水泥浆方法无效。发现分离的CPS表现出高热稳定性（≥250°C）和良好的压缩性（≥350巴）。此外，它们具有潜在的效用作为蒸汽分离的吸附剂或作为形成高尺寸CP结构的前体。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号