A sulfur-containing two-dimensional covalent organic framework with electrocatalytic hydrogen evolution in alkaline medium

Ma, Yunchao; Fu, Yue; Han, Yuhang; Li, Jingyang; Jiang, Wei; Lu, Yang; Liu, Chunbo; Che, Guangbo; Hu, Bo

doi:10.1039/d2ce00966h

Cited by 9 publications

(1 citation statement)

References 45 publications

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“…Ma et al condensed thieno[3, 2-b] thiophene-2, 5-dicarboxaldehyde (TTDC) containing thiophene-S with 1, 3, 5-tris(4-aminophenyl) benzene (TAPB) to form S-doped COF, denoted as JLNU-300. [200] JLNU-300 existed in the space group P6 3 /m in the form of AA stacking. In JLNU-300, C, N, and S atoms are evenly distributed.…”

Section: Functional Synthesismentioning

confidence: 99%

Optimization Strategies of Covalent Organic Frameworks and Their Derivatives for Electrocatalytic Applications

Xiao,

Wang,

Guan

2023

Adv Funct Materials

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Covalent organic frameworks (COFs) are crystalline organic porous polymers that can be precisely integrated by building blocks to achieve pre‐designed composition, components, and functions, making them a powerful platform for the development of molecular devices in the field of electrocatalysis. The precise control of channel/dopant positions and highly ordered network structures of COFs provide an ideal material system for the applications of advanced electrocatalysis. In this paper, the topological structure design and synthesis methods of COFs are reviewed in detail, and their design principles are deeply analyzed. In addition, the applications of COFs and their derivatives in the field of electrocatalysis are systematically summarized and the optimization strategies are proposed. Finally, the application prospects of COFs and their derivatives in electrocatalysis and the challenges that may be encountered in the future are prospected, providing helpful guidance for future research.

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Section: Functional Synthesismentioning

confidence: 99%

Optimization Strategies of Covalent Organic Frameworks and Their Derivatives for Electrocatalytic Applications

Xiao,

Wang,

Guan

2023

Adv Funct Materials

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Single Ru Sites on Covalent Organic Framework‐Coated Carbon Nanotubes for Highly Efficient Electrocatalytic Hydrogen Evolution

Sun,

Hu,

et al. 2023

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Covalent organic frameworks (COFs) with precisely controllable structures and highly ordered porosity possess great potential as electrocatalysts for hydrogen evolution reaction (HER). However, the catalytic performance of pristine COFs is limited by the poor active sites and low electron transfer. Herein, to address these issues, the conductive carbon nanotubes (CNTs) are coated by a defined structure RuBpy(H2O)(OH)Cl2 in bipyridine‐based COF (TpBpy). And this composite with single site Ru incorporated can be used as HER electrocatalyst in alkaline conditions. A series of crucial issues are carefully discussed through experiments and density functional theory (DFT) calculations, such as the coordination structure of the atomically dispersion Ru ions, the catalytic mechanism of the embedded catalytic site, and the effect of COF and CNTs on the electrocatalytic properties. According to DFT calculations, the embedded single sites Ru act as catalytic sites for H2 generation. Benefitting from increasing the catalyst conductivity and the charge transfer, the as‐prepared c‐CNT‐0.68@TpBpy‐Ru shows an excellent HER overpotential of 112 mV at 10 mA cm−2 under alkaline conditions as well as an excellent durability up to 12 h, which is superior to that of most of the reported COFs electrocatalysts in alkaline solution.

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Blue light photocatalytic oxidation of sulfides to sulfoxides with oxygen over a thiazole-linked 2D covalent organic framework

Wang

Huang

Sheng

et al. 2023

Applied Catalysis B: Environmental

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A sulfur-containing two-dimensional covalent organic framework with electrocatalytic hydrogen evolution in alkaline medium

Abstract: At present, electrocatalytic hydrogen evolution reaction (HER) has been widely studied in the field of energy and resource conversion. Herein, we synthesis metal-free sulfur-containing covalent organic framework material (JLNU-300) was...

Cited by 9 publications

References 45 publications

Optimization Strategies of Covalent Organic Frameworks and Their Derivatives for Electrocatalytic Applications

Optimization Strategies of Covalent Organic Frameworks and Their Derivatives for Electrocatalytic Applications

Single Ru Sites on Covalent Organic Framework‐Coated Carbon Nanotubes for Highly Efficient Electrocatalytic Hydrogen Evolution

Blue light photocatalytic oxidation of sulfides to sulfoxides with oxygen over a thiazole-linked 2D covalent organic framework

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