関連する実験動画

Updated: Mar 22, 2026

Microfluidic-based Synthesis of Covalent Organic Frameworks COFs: A Tool for Continuous Production of COF Fibers and Direct Printing on a Surface

Microfluidic-based Synthesis of Covalent Organic Frameworks COFs: A Tool for Continuous Production of COF Fibers and Direct Printing on a Surface

Published on: July 10, 2017

カチオン共性有機フレームワーク: 孔性の調節と陽子伝導のための単純なアニオン交換プラットフォーム

Heping Ma¹, Bailing Liu², Bin Li¹

¹State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics Fine Mechanics and Physics, Chinese Academy of Sciences , Changchun 130033, P. R. China.

Journal of the American Chemical Society

|April 21, 2016

まとめ

研究者は効率的な陽子伝導のための新しいカチオン共性有機フレームワーク (COF) を開発した. この新しい材料EB-COF:PW12は,既存の多孔な有機材料と比較して,室温で優れた陽子伝導性を示しています.

科学分野:

材料科学
化学について
ナノテクノロジー

背景:

陽子伝導物質はエネルギー利用に不可欠です
ナフィオンは基準ですが,コストなどの制限があります.
低コストで高性能な代替品の開発は重要な研究目標です.

研究の目的:

陽子伝導のための新しいカチオン共性有機フレームワーク (COF) を設計し,合成する.
COFの特性に対するイオン交換の影響を調査する.
陽子の伝導性を強化するために特定のアニオンを組み込む.

主な方法:

エチジウムブロミド (EB) と1,3,5-トリフォーミルフローログルシノール (TFP) のシフ塩基反応により,カチオン性COFが形成される.
イオン交換プロセスは,充電されたCOF (EB-COF:X) シリーズを作成します.
リン酸 (PW12O40(3-)) をCOF構造に組み込む.

主要な成果:

安定した,カチオン結晶共性有機フレームワーク (EB-COF:X) を成功裏に合成した.
イオン交換で調節可能な毛穴と毛穴の大きさを証明した.
室温でEB-COF:PW12で異常に高い陽子伝導性を達成し,他の多孔な有機物質を上回る.

結論:

陽子伝導のための有望なプラットフォームを提供する.
イオン交換とアニオン組み込みは,材料の特性を調節するための効果的な戦略です.
EB-COF:PW12は,潜在的なエネルギー用途のための陽子伝導材料の重要な進歩を表しています.

さらに関連する動画

Author Spotlight: Functionalizing Metal-Organic Frameworks: Advancements, Challenges, and the Power of Post-Synthetic Ligand Exchange

Author Spotlight: Functionalizing Metal-Organic Frameworks: Advancements, Challenges, and the Power of Post-Synthetic Ligand Exchange

Published on: June 23, 2023

Preparation of Highly Porous Coordination Polymer Coatings on Macroporous Polymer Monoliths for Enhanced Enrichment of Phosphopeptides

Preparation of Highly Porous Coordination Polymer Coatings on Macroporous Polymer Monoliths for Enhanced Enrichment of Phosphopeptides

Published on: July 14, 2015

関連する概念動画

Ion Exchange

Ion Exchange

Ion exchange chromatography separates charged molecules from a solution by reversibly exchanging them with mobile, or 'active', ions associated with the oppositely charged stationary phase. This method can be used to separate ions, soften and deionize water, and purify solutions. The polymers comprising the ion-exchange column are high-molecular-weight and chemically stable polymers, crosslinked to be porous and essentially insoluble. They are also functionalized with either acidic or...

Pore Transport and Ion-Pair Transport

Pore Transport and Ion-Pair Transport

Pore transport and ion-pair formation are critical mechanisms for the absorption and distribution of drugs in the body.
Pore transport, also known as convective transport, is a process where small molecules like urea, water, and sugars rapidly cross cell membranes as though there were channels or pores in the membrane. Although direct microscopic evidence is limited but the concept of pores or channels is widely accepted based on physiological evidence. Despite the lack of direct...

Ion-Exchange Chromatography

Ion-Exchange Chromatography

Ion-exchange chromatography, or IEC, is a technique for separating ions based on their affinity for the stationary phase. The stationary phase is a cross-linked polymer resin with covalently attached ionic functional groups. The functional groups can be either positively charged (cation exchangers) or negatively charged (anion exchangers). A cation exchanger consists of a polymeric anion and active cations, while an anion exchanger is a polymeric cation with active anions. The choice of...

Ionic Crystal Structures

Ionic Crystal Structures

Ionic crystals consist of two or more different kinds of ions that usually have different sizes. The packing of these ions into a crystal structure is more complex than the packing of metal atoms that are the same size.
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...

Intermolecular Forces

Intermolecular Forces

Atoms and molecules interact through bonds (or forces): intramolecular and intermolecular. The forces are electrostatic as they arise from interactions (attractive or repulsive) between charged species (permanent, partial, or temporary charges) and exist with varying strengths between ions, polar, nonpolar, and neutral molecules. The different types of intermolecular forces are ion–dipole, dipole–dipole, hydrogen bonds, and dispersion; among these, dipole–dipole, hydrogen...