Graphdiyne nanoribbons with high chemical precision are of great significance for further understanding of the intrinsic properties of graphdiyne and the relationship between structure and properties. However, the reliable synthesis of graphdiyne nanoribbons with chemical precision remains a significant challenge. A facile method is now presented for fabrication of graphdiyne nanoribbons with uniform width through stepwise inter- and intramolecular Glaser-Hay coupling reaction of ethynyl groups. The synthetic ribbons were interwoven into nanotextiles by π-π stacking and were applied for protective coating of Li-electrode in Li-ion batteries, which efficiently suppressed the growth of the Li dendrites during cycling and prolonged the life span of Li-metal batteries.
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http://dx.doi.org/10.1002/anie.201916518 | DOI Listing |
Mikrochim Acta
January 2025
CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China.
To enhance the application performance of graphdiyne (GDY) in electrochemical sensing, carbon nanotubes (CNTs) were grown in situ to construct three-dimensional nanoarchitectures of GDY-CNTs composites. GDY-CNTs showed superior electrochemical properties and detection response to MP when compared with GDY, as the in situ growth of CNTs significantly increased the electrode surface area and enhanced the electron transfer process. GDY-CNTs were successfully used to construct electrochemical sensors for methyl parathion (MP).
View Article and Find Full Text PDFTalanta
April 2025
School of the Environment and Safety Engineering, and Collaborative Innovation Center of Technology and Material of Water Treatment, Jiangsu University, Zhenjiang, 212013, PR China; Key Laboratory of Monitoring for Heavy Metal Pollutants, Ministry of Ecology and Environment, PR China. Electronic address:
The heavy metal ions (HMI) and π-electronical pollutants are two main types of environmental water contaminants, thus designing a universal sensor for their detection is considerable important. Meanwhile, graphdiyne (GDY) as a star material exhibits many unique advantages, especially superior adsorption and self-reducing property to HMI as well as great affinity to π-electron targets. Herein, by low-cost utilizing carbon nanotubes (CNTs) as the template dedicated to improve the conductivity and dispersibility of GDY, a multifunctional nanohybrid GDY/CNTs was prepared and then revealed successfully as a universal electrochemical sensing material for the HMI and π-electronical pollutants by adopting three models: (a) based on the in-situ adsorption and self-reduction capabilities of GDY towards HMI, an innovative electroreduction-free stripping voltammetry (FSV) sensing strategy was proposed for HMI detection via adopting Cu as a representative, which can effectively avoid the electroreduction process compared with the common anodic stripping voltammetry method; (b) by selecting nonylphenol (NP) and tetracycline (TC) as two representative targets, the sensing performances of GDY/CNTs for the π-electronical pollutants were also confirmed.
View Article and Find Full Text PDFChemistry
November 2024
Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 102488, P. R. China.
Organic two-dimensional materials have garnered widespread attention due to their well-defined structures, structural diversity, and rich electronic effects, demonstrating significant application potential across various fields. Atomic-level manipulation of the structures of organic two-dimensional materials has been a primary strategy for enriching and optimizing their properties. The introduction of heteroatoms often significantly affects their electronic structure, thereby endowing these materials with novel and unique properties.
View Article and Find Full Text PDFPhys Chem Chem Phys
November 2024
Institute of Advanced Interdisciplinary Technology, Shenzhen MSU-BIT University, Shenzhen 518172, China.
A precisely controllable heat treatment process is critical for nanofabrication. We developed a two-step method to fabricate a graphdiyne nanotube (GNT) through heat treatment in an argon environment. Initially, we placed a carbon nanotube (CNT) near a rectangular graphdiyne nanoribbon (GNR) to trigger the self-scrolling of the ribbon.
View Article and Find Full Text PDFMolecules
July 2024
College of Science, Liaoning Petrochemical University, Fushun 113001, China.
Using density functional theory combined with the first principles calculation method of non-equilibrium Green's function (NEGF-DFT), we studied the thermoelectric (TE) characteristics of one-dimensional γ-graphdiyne nanoribbons (γ-GDYNRs). The study found that the thermal conductivity of γ-GDYNRs has obvious anisotropy. At the same temperature and geometrical size, the lattice thermal conductivity of zigzag-edged γ-graphdiyne nanoribbons (γ-ZGDYNRs) is much lower than that of armchair-edged γ-graphdiyne nanoribbons (γ-AGDYNRs).
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