4.8 Article

A π-Conjugated Anion-Exchange Membrane with an Ordered Ion-Conducting Channel via the McMurray Coupling Reaction

相关参考文献

注意:仅列出部分参考文献,下载原文获取全部文献信息。
Article Chemistry, Multidisciplinary

Room-Temperature Ferromagnetism in Perylene Diimide Organic Semiconductor

Qinglin Jiang et al.

Summary: This study successfully demonstrates room-temperature ferromagnetism in organic semiconductors with high Curie temperatures through the fabrication of PDI powders containing radical anion aggregates. The findings offer a new optional approach to create room-temperature magnetic semiconductors.

ADVANCED MATERIALS (2022)

Article Chemistry, Multidisciplinary

Microscopic-Level Insights into the Mechanism of Enhanced NH3 Synthesis in Plasma-Enabled Cascade N2 Oxidation-Electroreduction System

Yongwen Ren et al.

Summary: This study systematically investigates the activation and recombination processes of N-2 and O-2 molecules in plasma, and decouples the mechanism of NOx- reduction to NH3, providing a basis for the practical development of ammonia synthesis.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2022)

Article Chemistry, Multidisciplinary

Poly(Alkyl-Terphenyl Piperidinium) Ionomers and Membranes with an Outstanding Alkaline-Membrane Fuel-Cell Performance of 2.58 W cm-2

Nanjun Chen et al.

Summary: The study introduces aliphatic chain-containing PDTP copolymers to enhance the performance of AEMFCs. By reducing phenyl content in AEIs and improving mechanical properties in AEMs, PDTP materials exhibit excellent performance indicators such as mechanical properties, fuel barrier properties, ion conductivity, and stability.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

Article Engineering, Chemical

Alkaline stable pyrrolidinium-type main-chain polymer: The synergetic effect between adjacent cations

Xiaochen Tan et al.

Summary: The study shows that increasing the cation charge density of pyrrolidinium compounds can improve alkaline stability, but the long spacer between adjacent pyrrolidinium cations accelerates cation degradation. The synergetic effect between adjacent cations helps decrease the charge density in the pyrrolidinium groups, enhancing the energy barrier for OH attack and thus improving alkaline stability.

JOURNAL OF MEMBRANE SCIENCE (2021)

Article Engineering, Chemical

Highly stable electron-withdrawing C=O link-free backbone with branched cationic side chain as anion exchange membrane

Fan Zhang et al.

Summary: By synthesizing a novel electron-withdrawing polymer backbone with spacer-tunable ionic side chains, density functional theory studies show increased barrier heights for aryl-ether cleavage and quaternary ammonium group degradation. This leads to high ion conductivity and alkaline stability in the anion exchange membrane.

JOURNAL OF MEMBRANE SCIENCE (2021)

Article Chemistry, Organic

Reduction of Ethynylenes to Vinylenes in a Macrocyclic π-Extended Thiophene Skeleton Under McMurry Coupling Conditions

Keigo Shirahata et al.

Summary: McMurry coupling is a useful tool for preparing pi-conjugated molecules, but in the synthesis of strained macrocycles with ethynylene linkages, reduction to vinylene linkages can occur. Particularly in the synthesis of macrocyclic pi-extended thiophene hexamers, ethynylenes may be reduced to vinylenes depending on reaction conditions and substituents, leading to unique products.

JOURNAL OF ORGANIC CHEMISTRY (2021)

Article Polymer Science

Dimensionally and oxidatively stable anion exchange membranes based on bication cross-linked poly(meta-terphenylene alkylene)s

Tao Jiang et al.

Summary: The study introduced a flexible bication cross-linker to improve the chemical and dimensional stabilities of AEM without compromising ion-conducting merits. Cross-linking significantly enhanced the ion conductivity of AEM at elevated temperatures, while also improving alkaline and oxidative stabilities. The cross-linked AEM exhibited a notable increase in chemical stability and maintained high conductivity, leading to improved performance in fuel cell applications.

POLYMER (2021)

Article Physics, Multidisciplinary

Air-stable ambipolarity of nanofibril polymer semiconductors in staggered organic field-effect transistors

Jun-Gu Park et al.

Summary: Air-stable ambipolar organic field-effect transistors (OFETs) with superior charge transport characteristics and high stability were fabricated from pi-conjugated polymer and elastomer composites. Directional printing techniques were used to control semiconductor film morphology, enabling the fabrication of high-performance and air-stable complementary-like electronic circuits.

JOURNAL OF THE KOREAN PHYSICAL SOCIETY (2021)

Review Materials Science, Multidisciplinary

Polymer Electrolytes with High Ionic Concentration for Fuel Cells and Electrolyzers

Yu Seung Kim

Summary: As fuel cells and electrolyzers demand higher performance and durability, the design of polymer electrolytes is evolving with a focus on increasing ionic concentration. This review highlights recent advancements in the use of high ionic concentration polymer electrolytes in electrochemical devices, summarizing synthetic approaches, performance benefits, challenges, and prospects. The goal is to explain the working principles of these electrolytes in high-performing fuel cells and electrolyzers, while also generating interest in utilizing these materials in tackling tough scientific challenges in emerging fields.

ACS APPLIED POLYMER MATERIALS (2021)

Article Chemistry, Multidisciplinary

Sandwich-like low-sensitive nitroamine explosives stabilized by hydrogen bonds and π-π stacking interactions

Yanfei Cheng et al.

Summary: This study presents the design and synthesis of two new low-sensitive nitroamine explosives, with their molecular structures confirmed using X-ray diffraction. The explosives showed high positive enthalpies of formation and good detonation performances, as well as low impact sensitivity, making them promising candidates for practical applications. Additionally, analyses were conducted to investigate the intermolecular interactions and the relationship between structures and molecular stabilities.

CRYSTENGCOMM (2021)

Article Chemistry, Physical

Self-aggregating cationic-chains enable alkaline stable ion-conducting channels for anion-exchange membrane fuel cells

Jianjun Zhang et al.

Summary: The precise manipulation of the polyelectrolyte self-assembly process to form specific microstructures with ion-conducting channels is crucial for various fields. By introducing dipolar ethylene oxide spacers in the cationic side chain, a new strategy for designing self-aggregating side chains with optimized alkaline stability has been developed, leading to the creation of AEMs with enhanced conductivity and alkaline stability. This innovative concept shows promising results in terms of hydroxide conductivity, peak power density, and alkaline stability in fuel cell applications.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

Article Chemistry, Multidisciplinary

Sulfonated Microporous Polymer Membranes with Fast and Selective Ion Transport for Electrochemical Energy Conversion and Storage

Peipei Zuo et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2020)

Article Chemistry, Multidisciplinary

Cationic Metallo-Polyelectrolytes for Robust Alkaline Anion-Exchange Membranes

Tianyu Zhu et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2018)

Article Chemistry, Multidisciplinary

Mixed Copper States in Anodized Cu Electrocatalyst for Stable and Selective Ethylene Production from CO2 Reduction

Si Young Lee et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2018)

Article Chemistry, Physical

Optimization of the pendant chain length in partially fluorinated aromatic anion exchange membranes for alkaline fuel cells

Ahmed Mohamed Ahmed Mahmoud et al.

JOURNAL OF MATERIALS CHEMISTRY A (2018)

Article Chemistry, Multidisciplinary

Poly(arylene piperidinium) Hydroxide Ion Exchange Membranes: Synthesis, Alkaline Stability, and Conductivity

Joel S. Olsson et al.

ADVANCED FUNCTIONAL MATERIALS (2018)

Article Chemistry, Multidisciplinary

Diketopyrrolopyrrole-based Conjugated Polymers Bearing Branched Oligo(Ethylene Glycol) Side Chains for Photovoltaic Devices

Xingxing Chen et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2016)

Article Engineering, Chemical

Wittig reaction constructed an alkaline stable anion exchange membrane

Jianqiu Hou et al.

JOURNAL OF MEMBRANE SCIENCE (2016)

Article Chemistry, Multidisciplinary

Anion-exchange membranes in electrochemical energy systems

John R. Varcoe et al.

ENERGY & ENVIRONMENTAL SCIENCE (2014)

Article Electrochemistry

Influence of Sulfone Linkage on the Stability of Aromatic Quaternary Ammonium Polymers for Alkaline Fuel Cells

Alina Amel et al.

JOURNAL OF THE ELECTROCHEMICAL SOCIETY (2014)

Article Chemistry, Physical

Hydroxide Degradation Pathways for Substituted Trimethylammonium Cations: A DFT Study

Hai Long et al.

JOURNAL OF PHYSICAL CHEMISTRY C (2012)

Article Chemistry, Physical

Density Functional Theory Study of Degradation of Tetraalkylammonium Hydroxides

Shaji Chempath et al.

JOURNAL OF PHYSICAL CHEMISTRY C (2010)

Article Chemistry, Organic

Insights into the general and efficient cross McMurry reactions between ketones

Xin-Fang Duan et al.

JOURNAL OF ORGANIC CHEMISTRY (2006)