On-Surface Two-Dimensional Polymerization: Advances, Challenges, and Prospects

Li, Ruoning; Zhang, Longzhu; Chen, Ting; Wang, Dong

doi:10.1021/acs.langmuir.3c00880

Cited by 3 publications

(1 citation statement)

References 97 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Graphene materials are widely used by researchers in various fields. − Graphene has garnered significant attention in energy storage and harvesting devices because of its exceptional and distinctive properties. A highly effective strategy for enhancing supercapacitor performance involves integrating fast and reversible redox reactive organic materials with graphene or its derivatives [graphene oxide (GO), reduced graphene oxide (rGO), and functionalized graphene]. − Several organic materials have been examined for this purpose, which encompasses 2-aminopyrene-3,4,9,10-tetraone, melamine cyanurate, hydrazide-pillar[5]arene, emodin, 3,4,5-trihydroxybenzamide, and amino hydroquinone dimethyl ether . Among these diverse organic molecules, particular attention has been paid to quinonyl compounds among organic materials for supercapacitors.…”

Section: Introductionmentioning

confidence: 99%

Supercapacitor Performance of Sulfonyldibenzene Derivative-Functionalized Graphene Aerogel

Xing,

Gong,

Gao

et al. 2024

Langmuir

View full text Add to dashboard Cite

3D aerogels incorporating functionalized reduced graphene oxide (SUL/rGO) were prepared as a hydrothermal method utilizing graphene oxide (GO) and a sulfonyldibenzene derivative (SUL) as raw materials. The aromatic compound SUL, which contains hydroxyl and sulfonyl groups, was bonded to reduced graphene oxide (rGO) through π−π connections. The obtained composite material exhibited porosity within its structure with improved hydrophilicity, along with excellent electrochemical characteristics. This improvement was ascribed to the specific rGO structure, as well as the pseudocapacitance inherent in SUL, both of which synergistically contribute to improvement in the characteristics of the prepared electrode materials. Also, an analysis was performed employing density functional theory from which the density of states and adsorption energy of SUL on the surface of rGO were computed to further investigate the charge storage process within the prepared composite. The prepared SUL/rGO-2 electrode exhibited the highest specific capacitance value of 388 F/g at a current density equal to 1 A/g. The constructed symmetrical supercapacitor, SUL/rGO-2//SUL/rGO-2, attained an energy density value of 14.55 Wh/kg at a power density equal to 350 W/kg with an exceptional galvanostatic charge−discharge (GCD) cyclic stability equal to 91% following 10 000 cycles. Therefore, this review presents a novel functionalized graphene-based material incorporating hydroxyl and sulfonyl groups, which holds promise in future energy storage applications.

show abstract

Section: Introductionmentioning

confidence: 99%

Supercapacitor Performance of Sulfonyldibenzene Derivative-Functionalized Graphene Aerogel

Xing,

Gong,

Gao

et al. 2024

Langmuir

View full text Add to dashboard Cite

show abstract

Sequential and hierarchical single-crystal-to-single-crystal transformations of a monomer to a 1D-polymer and then to a 2D-polymer

Sureshan,

Balan

2024

Preprint

View full text Add to dashboard Cite

Designing and synthesizing flawless two-dimensional polymers (2D-Ps) via meticulous molecular preorganization presents an intriguing yet challenging frontier in research. We report here the single-crystal-to-single-crystal (SCSC) synthesis of a 2D-P via thermally induced topochemical azide-alkyne cycloaddition (TAAC) reaction. A designed monomer incorporating two azide and two alkyne units was synthesized. The azide and alkyne groups are preorganized in the monomer crystal in reactive geometries for polymerizations in two orthogonal directions. On heating, the polymerizations proceed in a hierarchical manner; at first, the monomer reacted regiospecifically in a SCSC fashion to form a 1,5-triazolyl-linked 1D polymer (1D-P), which upon further heating underwent another SCSC polymerization to a 2D-P through a second regiospecific TAAC reaction forming 1,4-triazolyl linkages. Two different linkages in orthogonal directions makes this an architecturally unique 2D-P, as determined, at atomic resolution, by single-crystal X-ray diffraction. The 2D-P reported here is thermally stable in view of the robust triazole-linkages and can be exfoliated as 2D-sheets.

show abstract

Influence of Photoinitiator Type and Curing Conditions on the Photocuring of Soft Polymer Network

Niedźwiedź,

Demirci,

Kantor-Malujdy

et al. 2023

Materials

View full text Add to dashboard Cite

The presented work deals with the photocuring of telechelic macromonomers derived from plant-based fatty acids to obtain a soft polymer network. Compositions were made by mixing macromonomers with three different concentrations (0.5, 1, and 2%) of two type I photoinitiators (Omnirad 2022 and Omnirad 819). All formulations were then subjected to photopolymerization studies by applying UV-assisted differential scanning calorimetry (UV-DSC) measurements at isothermal conditions at 37 °C with a narrow light source wavelength of 365 nm and irradiation (light intensity) of 20 and 50 mW/cm2. The percentage conversions, reaction orders, and constants were estimated based on autocatalytic Sestak–Berggen and Avrami models. In this work, for the first time, the influence of the curing conditions on the photopolymerization process, such as the photoinitiator concentration, light intensity, and oxygen presence/absence, were investigated for these novel systems. The results indicated significant differences between the two commercially available photoinitiators and their effects on photopolymerization kinetics. The maximum reaction rate was found to be considerably higher for Omnirad 2022 (which is a blend of three different compounds), especially at a lower light intensity, i.e., 20 mW/cm2, compared to Omnirad 819. However, it led to lower maximum conversion in an air atmosphere. The dynamic thermomechanical analysis (DMTA) revealed that light intensity, photoinitiator concentration, and oxygen presence had a strong effect on the storage modulus and loss modulus values. It was concluded that the chemical structure of the photoinitiator and curing conditions had a strong effect on the photopolymerization kinetics and properties of the prepared soft polymer networks.

show abstract

On-Surface Two-Dimensional Polymerization: Advances, Challenges, and Prospects

Cited by 3 publications

References 97 publications

Supercapacitor Performance of Sulfonyldibenzene Derivative-Functionalized Graphene Aerogel

Supercapacitor Performance of Sulfonyldibenzene Derivative-Functionalized Graphene Aerogel

Sequential and hierarchical single-crystal-to-single-crystal transformations of a monomer to a 1D-polymer and then to a 2D-polymer

Influence of Photoinitiator Type and Curing Conditions on the Photocuring of Soft Polymer Network

Contact Info

Product

Resources

About