TrAC Trends in Analytical Chemistry, Journal Year: 2024, Volume and Issue: 174, P. 117680 - 117680
Published: March 29, 2024
Language: Английский
Journal of Colloid and Interface Science, Journal Year: 2023, Volume and Issue: 645, P. 146 - 153
Published: April 28, 2023
Language: Английский
Citations
25
Nanomaterials, Journal Year: 2023, Volume and Issue: 13(10), P. 1660 - 1660
Published: May 17, 2023
Two-dimensional (2D) phthalocyanine-based covalent organic frameworks (COFs) provide an ideal platform for efficient and rapid gas sensing-this can be attributed to their regular structure, moderate conductivity, a large number of scalable metal active centers. However, there remains need explore structural modification strategies optimizing the sluggish desorption process caused by extensive porosity strong adsorption effect sites. Herein, we reported 2D bimetallic COF (COF-CuNiPc) as chemiresistive sensors that exhibited high gas-sensing performance nitrogen dioxide (NO2). Bimetallic COF-CuNiPc with asymmetric synergistic achieves fast adsorption/desorption NO2. It is demonstrated detect 50 ppb NO2 recovery time 7 s assisted ultraviolet illumination. Compared single-metal COFs (COF-CuPc COF-NiPc), structure proper band gap interact molecules. The CuNiPc heterometallic site expands overlap d-orbitals, optimized electronic arrangement accelerates processes. concept enabled phthalocyanines in this work innovative direction design high-performance sensors.
Language: Английский
Citations
25
Small, Journal Year: 2023, Volume and Issue: 19(17)
Published: Jan. 26, 2023
Covalent organic frameworks (COFs) are a unique new class of porous materials that arrange building units into periodic ordered through strong covalent bonds. Accompanied with structural rigidity and well-defined geometry, heteroacene-based COFs have natural advantages in constructing high stability crystallinity. Heteroacene-based usually physical chemical properties, their extended π-conjugation also leads to relatively low energy gap, effectively promoting π-electron delocalization between network units. Owing excellent electron-withdrawing or -donating ability, heteroacene incomparable the preparation donor-acceptor type COFs. Therefore, physicochemical robust fully conjugated solve problem traditional lacking π-π interaction stability. In recent years, significant breakthroughs made this field, choice various linking modes blocks has fundamentally ensured final applications It is great significance summarize for improving its complexity controllability. This review first introduces linkages COFs, including reversible irreversible linkages. Subsequently, some representative summarized, related especially emphasized. Finally, conclusion perspectives future research on presented.
Language: Английский
Citations
23
Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: unknown
Published: June 6, 2024
Abstract Low *CO coverage on the active sites is a major hurdle in tandem electrocatalysis, resulting unsatisfied C 2 H 4 production efficiencies. In this work, we developed synergetic‐tandem strategy to construct copper‐based composite catalyst for electroreduction of CO , which was constructed via template‐directed polymerization ultrathin Cu(II) porphyrin organic framework incorporating atomically isolated and bipyridine carbon nanotube (CNT) scaffold, then Cu O nanoparticles were uniformly dispersed CNT scaffold. The presence dual within create synergetic effect, leading an increase local availability enhance C−C coupling step implemented adjacent further production. Accordingly, resultant affords exceptional ‐to‐C Faradaic efficiency (FE C2H4 ) 71.0 % at −1.1 V vs reversible hydrogen electrode (RHE), making it one most effective catalysts reported date. superior performance confirmed through operando infrared spectroscopy theoretic calculations.
Language: Английский
Citations
14
TrAC Trends in Analytical Chemistry, Journal Year: 2024, Volume and Issue: 174, P. 117680 - 117680
Published: March 29, 2024
Language: Английский
Citations
12