A5029441140- Electrocatalysts for Energy Conversion
- Fuel Cells and Related Materials
- Advanced Photocatalysis Techniques
- Catalytic Processes in Materials Science
- Advanced battery technologies research
- Methane Hydrates and Related Phenomena
- Catalysis and Hydrodesulfurization Studies
- Hybrid Renewable Energy Systems
- Spacecraft and Cryogenic Technologies
- Industrial Gas Emission Control
- Carbon Dioxide Capture Technologies
- Conducting polymers and applications
- Fluid Dynamics and Mixing
- Electrochemical Analysis and Applications
- Supercapacitor Materials and Fabrication
- CO2 Reduction Techniques and Catalysts
- Advanced Polymer Synthesis and Characterization
- Copper-based nanomaterials and applications
- Fluid Dynamics and Heat Transfer
- Transition Metal Oxide Nanomaterials
- Catalysis for Biomass Conversion
- Advanced Thermoelectric Materials and Devices
- Electrohydrodynamics and Fluid Dynamics
- Photonic Crystals and Applications
- TiO2 Photocatalysis and Solar Cells
Korea Institute of Industrial Technology
2017-2025
Petronas (Malaysia)
2024
Government of the Republic of Korea
2019
University of Minnesota
2009-2013
Twin Cities Orthopedics
2013
Seoul National University
2006-2012
GS Engineering (United States)
2012
Montana Technological University
1984
Crystalline–amorphous phase boundary engineering can be an effective strategy to develop cost-effective and high-performance electrocatalysts for water splitting.
This study presents an induction heating-based reactor for ammonia decomposition and to achieve a 150 Nm3/h carbon-free green hydrogen production process. The developed metallic monolith acts by increasing the temperature through electromagnetic method using renewable-based electricity. As result, is produced without generation of air pollutants such as CO2, which are formed via conventional pathway. Furthermore, techno-economic analysis was conducted based on exergy economic evaluate...
Alkaline electrolysis is one of the most promising among gas-to-power technologies to produce hydrogen energy where oxygen evolution reaction (OER) plays an important role. It has recently been demonstrated that OER activity layered double hydroxide (LDH) could be enhanced by accommodating more abundant active sites offer optimal binding energies between intermediates. Here, we report a study nickel iron hydroxides varying Ni:Fe atomic ratio Ni1–xFex-LDH induce changes their physiochemical...
Electrocatalytic water splitting is a feasible method for large‐scale hydrogen production. Recently, layered double hydroxides (LDH) have been identified as possible candidate accelerating the process. Nevertheless, certain structural alterations are necessary immaculate LDH because of their weak electrocatalytic activity. These changes alter local reaction environment by modulating electronic structure metal centre present in LDH. This tailoring accomplished variety processes, including...
Poly(N-vinylcaprolactam) (PVCap) has previously been shown to be an outstanding low-dosage hydrate inhibitor (LDHI). The inhibition performance of LDHI is known influenced by molecular weight (Mw) and distribution. In this study, PVCaps were synthesized two different methods. first method, reversible addition–fragmentation chain transfer (RAFT) polymerization, was used prepare PVCap with a narrow distribution (about Mw/Mn < 1.5), which close theoretical values. second free radical...
Abstract Chain transfer with polymethylacrylate was determined by measuring chain constants model substances resembling part of polymer P = 1–3 and extrapolating to higher . The found value, 5 × 10 −5 , is much less than expected for an explanation gel formation in the polymerization methyl acrylate.
In the present study, we describe an approach to address both catalytic activity and durability issues synergistically for polymer electrolyte fuel cells (PEFCs) by using robust nanotube (TONT) arrays as alternative support replace carbon. We formed sputtered Pt on TONT arrays, which were prepared electrochemical anodizing procedure, evaluated resulting catalysts oxygen reduction reaction (ORR) kinetics accelerated tests (ADTs). The high ORR of Pt/TONT catalyst is attributed a synergistic...
In this study, we incorporated tungstate ions into a metal-organic framework (MOF) structure for the purpose of seawater oxidation. The presence on surface results in protective anionic layer that repels chloride and selectively enhances adsorption hydroxyl onto catalytic sites.
We examined the durability of Pt sputtered onto nanotubes (Pt/TONTs) using accelerated tests and extended fuel cell operation time. From cyclic voltammograms, a threshold potential was found at , below which there an oxide-free surface that showed best catalytic activity for reduction reaction. The Pt/TONT catalyst durable, as shown by only small amounts degradation active area power values. suggest does not show any dissolution or agglomeration such is well known on carbon supports.
A catalyst was readily synthesized by borohydride reduction and hydrothermal treatment for the anode electrode of a low-temperature fuel cell. The physical electrochemical characterization performed transmission electron microscopy (TEM), X-ray diffraction, adsorption-desorption, methanol oxidation, CO stripping. In TEM image, PtSn nanoparticles were uniformly well-dispersed on carbon support with an average particle size around . showed higher activity than commercial catalysts, its onset...
We introduce an exploratory flexible fuel cell (f-FC) using a commercial catalyst. Our laminated f-FC operating from , yields the maximum powers with area of respectively. This implies excellent reproducibility performance even on catalyst areas scaled down for miniaturized FCs. The impedance response was investigated in terms hydrogen dissociation, proton transport, and interfacial reactions, appearing at voltage. has is easily reproducible superior advantages applications to evaluate...