A5022250585- Electrochemical sensors and biosensors
- Advanced battery technologies research
- Electrocatalysts for Energy Conversion
- Electrochemical Analysis and Applications
- Supercapacitor Materials and Fabrication
- Advanced biosensing and bioanalysis techniques
- Conducting polymers and applications
- Advanced Nanomaterials in Catalysis
- Analytical Chemistry and Sensors
- Fuel Cells and Related Materials
- Advanced Battery Technologies Research
- CO2 Reduction Techniques and Catalysts
- Perovskite Materials and Applications
- Transition Metal Oxide Nanomaterials
- Enzyme Catalysis and Immobilization
- Consumer Perception and Purchasing Behavior
- Plant and animal studies
- Insect and Arachnid Ecology and Behavior
- Digital Media and Visual Art
- Catalysts for Methane Reforming
- Electric and Hybrid Vehicle Technologies
- Water Quality Monitoring and Analysis
- Molecular Junctions and Nanostructures
- Carbon Dioxide Capture Technologies
- Mechanical Failure Analysis and Simulation
Korea National University of Transportation
2017-2024
Government of the Republic of Korea
2017-2020
Seoul National University of Science and Technology
2015-2017
Seoul National University
1995
When hydroxamic acid functionalized carbon nanotube (CNT) catalyst is adopted for VO<sup>2+</sup>/VO<sup>2+</sup> reaction, VRFB performance best. It due to the chelation ability of acid. With role as chelating agent, properly interacts with VO<sup>2+</sup> and VO<sup>2+</sup>, promoting their redox reactions.
Glucose oxidase (GOx)-catalase co-immobilized catalyst (CNT/PEI/(GOx-Cat)) was synthesized, and its catalytic activity electrical performance were investigated compared, whereas the amount of immobilized catalase optochemically inspected by chemiluminescence (CL) assay. With characterizations, it confirmed that well on CNT/PEI surface, both GOx play their roles in catalyst. According to measurements current density peak flavin adenine dinucleotide (FAD) redox reaction, electron transfer...
New enzymatic catalysts prepared using physical entrapment and chemical bonding were used as anodic to enhance the performance of biofuel cells (EBCs). For estimating effect, best glucose oxidase (GOx) concentration immobilized on polyethyleneimine (PEI) carbon nanotube (CNT) (GOx/PEI/CNT) was determined, while for inspecting terephthalaldehyde (TPA) glutaraldehyde (GA) crosslinkers employed. According enzyme activity XPS measurements, when GOx is 4 mg mL(-1), they are most effectively (via...
An all-iron aqueous redox flow battery using iron (Fe) 2,2-bis(hydroxymethyl)-2,2′,2′-nitrilotriethanol (BIS-TRIS) complex (Fe(BIS-TRIS)) and Ferrocyanide (Fe[CN]6) as couple is newly suggested. The potential of Fe(BIS-TRIS) −1.11 V (vs Ag/AgCl) this makes appropriate active material for anolyte, while Fe(CN)6 proper catholyte due to its excellent reactivity, potential, cheap cost. According quantitative evaluations, does not produce any side reactions more stable than Fe triethanolamine...
A model explaining the π-conjugated electron pathway effect induced by a novel cross-linker adopted enzyme catalyst is suggested and performance stability of an enzymatic biofuel cell (EBC) adopting new are evaluated. For this purpose, terephthalaldehyde (TPA) conventional glutaraldehyde (GA) cross-linkers on glucose oxidase (GOx), polyethyleneimine (PEI) carbon nanotube (CNT)(GOx/PEI/CNT) structure. GOx/PEI/CNT cross-linked TPA (TPA/[GOx/PEI/CNT]) results in superior EBC to other catalysts....
Highly porous zeolitic-imidazole frameworks (ZIFs) are synthesized to produce N-doped mesoporous carbon electrocatalysts via calcination. The (m-NC) and nanotubes (m-NCNT) obtained from ZIF-8 ZIF-67, while the core-shell structure of ZIF-8@ZIF-67 produced with seeds (m-NC@NCNT) is prepared by hydrothermal method. Chemical optical evaluations catalysts characterized using BET, FT-IR, XPS, XRD, Raman spectroscopy SEM/STEM they used as for redox reactions vanadium ions flow battery (VRFB)...
Modified (2,2,6,6-tetramethylpiperidin-1-yl)oxyl (TEMPO)-mediated oxidation (MTMO) is introduced to fabricate low-defected carboxylic acid functional group–rich carbon nanotube (TEMPO-CNT) through facile and eco-friendly chemical preparation. Due the MTMO, O=C-O portion (18.2%), representing amount of active site vanadium ion redox reaction (VIRR), reaches nearly same with conventionally acid-treated CNT (AT-CNT, 18.9%). However, intensity ratio D G band TEMPO-CNT measured lower value (1.14)...
Phosphorus-doped graphitic carbon with enhanced performance for VRFBs synthesized via sustainable, scalable microwave and NaCl-driven process.
Glucose oxidase and polyacrylic acid based conjugate shows superior catalytic activity due to its high water swellability. The absorbs many glucose molecules with rapid transfer rate. Desirable reactions are accordingly promoted.