2023年6月26日 · In this work, a phosphoric acid (PA)-doped porous aromatic framework (PAF-6-PA) is incorporated into poly[2,2′-(p-oxydiphenylene)-5,5′-benzimidazole] (OPBI) to fabricate novel PAF-6-PA/OPBI composite HT-PEMs through solution-casting. The alkaline nitrogen structure in PAF-6 can be protonated with PA to provide proton hopping sites, and its ...

2020年10月1日 · Here, the layered porous aromatic framework (PAF-6), featuring two kinds of Lewis base sites (N Piperazine and N Triazine), is exfoliated into few-layer nanosheets to form the LP entity with the Lewis acid.

该 PAF-6-PA/OPBI 复合薄膜为 PBI 基 HT-PEMs 的实际应用提供了一种新策略。 本文亮点. 1. 采用直接溶液浇铸策略，将 PA 掺杂的 PAF-6 （PAF-6-PA）引入至 OPBI 中制备出新型 PAF-6-PA/OPBI 复合 HT-PEM 膜。 2. 含有 10% PAF-6-PA 的复合 HT-PEM 具有 20.19 MPa 的拉伸强度，在 200 °C 表现出 0.089 S cm-1 的优化质子传导率。 3. 在燃料电池性能测试中，催化剂 Pt 负载量仅为 0.3 mg cm-2 时，峰值功率密度高达 437.7 mW cm-2。 背景介绍. 燃料电池作为一种 …

paf-6中的碱性氮结构可以被pa质子化以提供质子跳跃位点，其多孔结构可以增强pa在膜中的保留，从而为质子转移创造快速通道。 刚性PAF-6和OPBI之间的氢键相互作用还可以增强复合膜的机械性能和化学稳定性。

2018年6月29日 · The new core–shell sorbent, PAF-6 MNPs, core–shell structured with a functional shell (PAF-6) and a magnetically responsive core have comprehensive advantages of good adsorption capacity and magnetic separation.

2020年10月10日 · In this work, magnetic porous aromatic frameworks with a core–shell structure (PAF-6 MNPs) were synthesized by in situ growth. The PAF-6 MNPs were further used as MSPE sorbent for extracting and purifying five phenols from human urine, and HPLC-UV was then used for the determination of phenols in urine samples.

A novel nanoporous carbon (NPC) was constructed by utilizing the porous aromatic framework-6 (PAF-6) as both the template and carbon source along with KOH as a chemical activator. The newly-synthesized PAF-6 derived nanoporous carbon (PAF-6-NPC) was then employed as a solid-phase microextraction (SPME) fiber coating.

In this paper, a simple and effective method for the determination of six macrolide antibiotics (MACs), including tylosin, tilmicosin, azithromycin, clarithromycin, roxithromycin, and kitasamycin...

2024年6月4日 · PAF-6是一种多孔芳香族骨架化合物，具有独特的结构和性质。 以下是关于PAF-6的详细解释： 1. 合成方法. PAF-6的合成基于三聚氯氰与具有亲核性质的线性和正四面体胺类作为结构单元，通过高产率的亲核取代反应构造。 具体而言，选择具有线性结构的二元仲胺哌嗪，在温和、无金属催化的条件下与三聚氯氰聚合制备了PAF-6。 2. 结构特性. PAF-6具有二维层状结构，骨架结构有一定有序程度。 Langmuir比表面积为452 m²/g，孔径分布为11.8 Å。 低细胞毒 …

The PAF‐6‐PA/OPBI provides a novel strategy for the practical application of PBI‐based HT‐PEMs. High‐temperature proton‐exchange‐membrane fuel cells (HT‐PEMFCs) can offer improved energy efficiency and tolerance to fuel/air impurities.