Tricycloquinazoline-containing 3D conjugated microporous polymers and 2D covalent quinazoline networks: microstructure and conductivity

Abstract

The isomers of 3D TQ-CMP and 2D TQ-CQN was made toward the applications of gas adsorption and hydrogen evolution reaction, which clarified the interrelation between microstructure and conductivity for structural design and functional exploration.

Excellent electrocatalytic performance of metal-free thiophene–sulfur covalent organic frameworks for hydrogen evolution in alkaline medium

“…More importantly, the existence of a thiophene-based structure with high conductivity and charge mobility enables the material to transfer electrons rapidly during the HER, which greatly promotes its electrocatalytic performance. The electrocatalytic performance of the obtained materials, especially the HER performance under alkaline conditions, is superior to those of previously reported conjugated microporous polymers (CMPs), 28,29 COPs, 30 MOFs 31,32 and all metal-free COFs. 24,26,33 The obtained materials not only showed excellent HER performance under alkaline conditions but also excellent electrocatalytic performance under acidic and neutral conditions, expanding the scope of application of COFbased materials in HER applications.…”

Phenyl Extended Naphthalene‐Based Covalent Triazine Frameworks as Versatile Metal‐Free Heterogeneous Photocatalysts

“…The Langmuir surface area of NDP‐CTF (MW) was the highest, 695 m 2 g −1 and showed a very high CO 2 uptake (27.10 wt%, 6.10 mmol g −1 ) ( Table 1 ). This value is higher than most of the CO 2 uptake values CTFs reported (20– wt%, 4.5–5.6 mmol g −1 ) [ 32–34 ] and it was only surpass by CTFs with free OH groups (6.30–8.54 mmol g −1 ). [ 35 ] Again, a plausible explanation for the different behavior between MW and thermal CTFs, might be the defects present in the structure, that probably favour the CO 2 uptake by modifying the polarity of the material's surface.…”

Hydrogen-bonded organic frameworks: design, applications, and prospects

“…So far, porous materials, such as COFs and conjugated triazine frameworks (CTFs), have been widely used as electrocatalysts. [163][164][165][166] As special porous materials, HOFs have a similar structure and properties to those of COFs. Although the stability of HOFs is poor, this deficiency does not hinder their development and application based on rigid HOFs reported before.…”