A5005082253- Supercapacitor Materials and Fabrication
- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Advanced battery technologies research
- Membrane Separation Technologies
- Membrane Separation and Gas Transport
- Covalent Organic Framework Applications
- Advanced Battery Technologies Research
- Conducting polymers and applications
- Thermal Expansion and Ionic Conductivity
- Electrocatalysts for Energy Conversion
- Dielectric materials and actuators
- Synthesis and properties of polymers
- Gas Sensing Nanomaterials and Sensors
- Fiber-reinforced polymer composites
- Advanced Sensor and Energy Harvesting Materials
- Membrane-based Ion Separation Techniques
- Graphene research and applications
Korea Research Institute of Chemical Technology
2016-2021
Seoul National University
2016-2020
Government of the Republic of Korea
2016-2020
Korea University of Science and Technology
2016
Carboxylate-functionalized polymers of intrinsic microporosity (PIMs) are promising materials for gas separation application. However, highly carboxylate-functionalized PIMs (HCPIMs) have not been reported owing to overlooked intermediate products. Herein, we successfully prepared HCPIMs (∼92 mol % carboxylic acid group) through a prolonged alkaline hydrolysis process (360 h). were found be soluble in various organic solvents, such as tetrahydrofuran and dimethyl sulfoxide, then...
Laser-induced graphene (LIG) typically exhibits a mesostructure with small specific surface area, which is detrimental to the electrochemical performance of micro-supercapacitors (MSCs). Herein, 3D nanostructured LIGs patterned on fluorinated polyimides (fPIs) via laser photothermal method are reported. During laser-induced graphitization, highly microporous structure in LIG develops. Consequently, (LIG-fPI) very large area (1126.0 m2 g–1), thereby enhancing its performance. Specifically, an...
For the operation of rechargeable lithium (Li) metal batteries (LMBs), ensuring stability and efficiency Li anodes (LMAs) is crucial. The solid-electrolyte interphase (SEI) plays a pivotal role...
PIM-1-based carbon–sulfur composites, combining covalent bonds and physical confinement concepts, operate without the shuttle effect in room-temperature sodium–sulfur batteries.
Hierarchically porous carbons derived from an intrinsically microporous polymer<italic>via</italic>a nonsolvent-induced phase separation show outstanding supercapacitor performance.
Achieving high proton conductivity, low vanadium ion permeability, and chemical stability using a single material remains key challenge for hydrocarbon-based membranes use in redox flow batteries (VRFBs). Herein, we report amorphous poly(2,5-benzimidazole) (ABPBI) with alkyl spacers which can meet these requirements. Spacer-grafted poly(2,5-benzimidazole)s (ABPBIs) different grafting ratios were synthesized via an N-substitution reaction denoted as ABPBI-0, -10, -25, -40, -50, respectively....
Hybrid materials comprising graphene and palladium nanoparticles (PdNPs) are desirable for high-performance hydrogen detection because of the high specific surface area, electron mobility, flexibility electrochemical responsivity reversibility PdNPs. However, obtaining hybrid is energy-intensive time-consuming. Here, a facile rapid laser photothermochemical single-step processing method to synchronously produce nanoassembly three-dimensional porous PdNPs from polymer films reported. Polymers...
Room-temperature sodium–sulfur (RT Na–S) batteries have recently gained attention as next-generation energy storage devices owing to their low cost, the abundance of sodium, and high theoretical capacity sulfur. However, notorious shuttle effect, caused by dissolution intermediate polysulfides during cycling, limits long-term performance Na–S batteries. In this study, intrinsically microporous Tröger's base based polymer (PIM-EA-TB)-based carbon–sulfur composites are prepared for...
A new non-ladder-type polyethersulfone-type PIM that incorporated a linear sulfone moiety was synthesized.
Abstract Considering the variations in their pore characteristics and heterogeneity, carbonization process of carboxylate‐functionalized polymers intrinsic microporosity (PIM‐COOH) is investigated resulted membranes are tested for water treatment. The four distinct types sub‐nanosized with different oxygen‐to‐carbon ratios prepared at temperatures: pristine polymer membrane, crosslinked membrane via thermal decarboxylation, amorphous carbon graphitic membrane. Notably, sub‐1 nm micropores...
As an effort to prepare carbon nanosheet and film through catalyst- transfer free process, several research groups have reported carbonization of polymers small molecules such as polyacrylonitrile (PAN) a molecular pitch extracted from petroleum. Carbon nanosheets converted PAN or were obtained two steps: cyclization carbonization. Because the quality materials sensitively depends on conditions temperature, ramping rate, oxygen contents, there is great need for cyclization-free process....