Two-dimensional (2-D) polymer has properties that are attractive for energy storage applications because of its combination of heteroatoms, porosities and layered structure, which provides redox chemistry and ion diffusion routes through the 2-D planes and 1-D channels. Here, conjugated aromatic polymers (CAPs) were synthesized in quantitative yield via solid-state polymerization of phenazine-based precursor crystals. By choosing flat molecules (2-TBTBP and 3-TBQP) with different positions of bromine substituents on a phenazine-derived scaffold, C-C cross coupling was induced following thermal debromination. CAP-2 is polymerized from monomers that have been prepacked into layered structure (3-TBQP). It can be mechanically exfoliated into micrometer-sized ultrathin sheets that show sharp Raman peaks which reflect conformational ordering. CAP-2 has a dominant pore size of ∼0.8 nm; when applied as an asymmetric supercapacitor, it delivers a specific capacitance of 233 F g at a current density of 1.0 A g, and shows outstanding cycle performance.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/acsnano.7b08354 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Long-Lasting Solid-State Aluminum Battery with High-Areal-Capacity Enabled by In Situ Polymerization Strategy.
Adv Mater
March 2025
Key Laboratory of Hunan Province for Advanced Carbon-based Functional Materials, School of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang, 414006, China.
Nonaqueous rechargeable aluminum batteries (RABs) attract intense interest due to their low-cost, high-capacity, and high-safety using nonflammable chloroaluminate ionic liquid electrolytes (ILEs). However, Al dendrite growth, interface degradation, and corrosiveness remain challenges in these ILEs. Herein, an ultrastable solid-state aluminum battery (SAB) based on a cross-linked polymer solid-state electrolyte (PSE) and a PSE-encapsulated graphite (PG) cathode is constructed via an in situ polymerization strategy, which maintains battery safety and realizes a synergy of interface compatibility between PSE/PG and PSE/Al interfaces.
View Article and Find Full Text PDFFacile fabrication of morphology-adjustable viologen-based ionic polymers for carbon dioxide immobilization and iodine vapor adsorption.
J Colloid Interface Sci
February 2025
School of Materials Science and Engineering, Hebei University of Engineering, Handan 056038, Hebei, China; Hebei Key Laboratory of Photoelectric Control on Surface and Interface, Hebei University of Science and Technology, Shijiazhuang 050018, Hebei, China. Electronic address:
Viologens, also referred as 1,1'-disubstituted-4,4'-bipyridinium salts, exhibit exceptional redox properties, identifying them as building blocks for functional organic polymer materials with a wide range of potential applications, including carbon dioxide (CO) conversion and iodine capture. Herein, a series of viologen-derived ionic porous organic polymers (VIPOP-n), assembled from viologen derivatives, were designed and synthesized using a straightforward one-step strategy. The constructed polymer materials were subsequently characterized by Fourier Transform Infrared Spectroscopy (FT-IR), solid-state C nuclear magnetic resonance (C NMR), X-ray photoemission spectroscopy (XPS), scanning electron microscopy (SEM), and nitrogen adsorption-desorption isotherms, among other techniques.
View Article and Find Full Text PDFInfluence of ancillary ligands on the formation and functionality of oxovanadium(V) metallosupramolecular assemblies: advanced computational and catalytic analyses.
Dalton Trans
March 2025
University of Zagreb, Faculty of Science, Department of Chemistry, Horvatovac 102a, 10000 Zagreb, Croatia.
A coordination-driven self-assembly approach offers an opportunity for designing metallosupramolecular architectures with tailored properties. Applying this strategy, we present the synthesis and detailed characterization of tetranuclear and polynuclear vanadium(V) compounds with an aroylhydrazone ligand. These assemblies were obtained using the 3-methoxy-2-hydroxybenzaldehyde isonicotinoyl hydrazone ligand (HVIH) and NHVO in the presence of primary aliphatic alcohols with increasing carbon chain length (from one to five carbon atoms).
View Article and Find Full Text PDFAliphatic-Aromatic Copolyesters with Waste-Sourceable Multiple Chain-Length Building Blocks.
ACS Sustain Chem Eng
March 2025
Department of Chemistry, University of Konstanz, Universitätsstrasse 10, 78457 Konstanz, Germany.
Sourcing commodity polymers from sustainable alternative feedstocks, such as those derived from plastic waste or biobased resources, is a promising approach to alleviate the reliance on finite fossil fuel stocks for the production of virgin plastics. Linear aliphatic dicarboxylic acids of multiple chain lengths can be obtained from polyethylene (PE) waste, and their use in the synthesis of aliphatic polyesters has recently been demonstrated. To improve the materials' properties of polyesters derived from multiple chain-length dicarboxylates, we herein combined this feedstock with terephthalate as an aromatic monomer unit to yield aliphatic-aromatic copolyesters.
View Article and Find Full Text PDFFrom Unprintable Peptidic Gel to Unstoppable: Transforming Diphenylalanine Peptide (Fmoc-FF) Nanowires and Cellulose Nanofibrils into a High-Performance Biobased Gel for 3D Printing.
ACS Appl Bio Mater
March 2025
Institute of Wood Science, Universität Hamburg, Haidkrugsweg 1, 22885 Barsbüttel, Germany.
The growing interest in gel-based additive manufacturing, also known as three-dimensional (3D) gel-printing technology, for research underscores the crucial need to develop robust biobased materials with excellent printing quality and reproducibility. The main focus of this study is to prepare and characterize some composite gels obtained with a low-molecular-weight gelling (LMWG) peptide called Fmoc-diphenylalanine (Fmoc-FF) and two types of cellulose nanofibrils (CNFs). The so-called Fmoc-FF peptide has the ability to self-assemble into a nanowire shape and therefore create an organized network that induces the formation of a gel.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!