Search Results - "Yi, Sung Chul"
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Corrosion and Alloy Engineering in Rational Design of High Current Density Electrodes for Efficient Water Splitting
Published in Advanced energy materials (01-06-2020)“…Alongside rare‐earth metals, Ni, Fe, Co, Cu are some of the critical materials that will be in huge demand thanks to growth in clean‐energy sector. Herein…”
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Molybdenum Sulphoselenophosphide Spheroids as an Effective Catalyst for Hydrogen Evolution Reaction
Published in Small (Weinheim an der Bergstrasse, Germany) (01-02-2018)“…Electrocatalytic splitting of water is the most convincing and straight forward path to extract hydrogen, but the efficiency of this process relies heavily on…”
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Solvent effect on the Nafion agglomerate morphology in the catalyst layer of the proton exchange membrane fuel cells
Published in International journal of hydrogen energy (05-01-2017)“…In this work, we investigated the influence of the solvents used in the catalyst ink on performance of the proton exchange membrane fuel cells (PEMFCs). The…”
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4
Effective separation method for uranium and thorium after borate fusion to minimize matrix influences in naturally occurring radionuclide materials
Published in Journal of radioanalytical and nuclear chemistry (01-03-2023)“…Borate fusion pretreatment is an easy and rapid decomposition for NORM samples. In order to analyze the concentrations of U and Th by ICP-MS, the separation…”
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Bacterial nanocellulose as a green and flexible electrode matrix for efficient hydrogen evolution reaction in alkaline conditions
Published in Cellulose (London) (01-09-2020)“…Bacterial nanocellullose (BNC) is a versatile matrix for designing and incorporating three-dimensional functional nanomaterials for different applications. The…”
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Preparation and antibacterial effects of Ag-SiO2 thin films by sol-gel method
Published in Biomaterials (01-12-2003)“…In the present study, silver-doped silica thin films were successfully prepared by sol-gel method to apply for antibacterial materials. The starting solution…”
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Optimization of catalyst ink composition for the preparation of a membrane electrode assembly in a proton exchange membrane fuel cell using the decal transfer
Published in International journal of hydrogen energy (01-12-2012)“…For low interfacial resistance and feasibility of forming catalyst layer (CL), decal transfer (DT) is considered as one of the most effective methods for…”
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A graphene quantum dot/phthalocyanine conjugate: a synergistic catalyst for the oxygen reduction reaction
Published in RSC advances (01-01-2017)“…Graphene quantum dots (GQDs) have gained great interest due to their chemical stabilities, unique catalytic activities, and feasible chemical functionalization…”
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Performance degradation of solid oxide fuel cells due to sulfur poisoning of the electrochemical reaction and internal reforming reaction
Published in International journal of hydrogen energy (13-10-2014)“…Hydrogen sulfide is known to degrade the solid oxide fuel cell (SOFC) performance by adsorbing on the nickel anode catalyst. In this research, the mechanism…”
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10
On the role of the silica-containing catalyst layer for proton exchange membrane fuel cells
Published in Energy (Oxford) (15-04-2014)“…The performance of a PEMFC (proton exchange membrane fuel cell) severely decreases as the relative humidity decreases. Herein, we present size-controlled SiO2…”
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Ultrahigh PEMFC Performance of a Thin-Film, Dual-electrode Assembly with Tailored Electrode Morphology
Published in ChemSusChem (01-02-2014)“…A dual‐electrode membrane electrode assembly (MEA) for proton exchange membrane fuel cells with enhanced polarization under zero relative humidity (RH) is…”
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12
Investigations of the temperature distribution in proton exchange membrane fuel cells
Published in Applied energy (01-05-2012)“…A two-dimensional, non-isothermal model of a proton exchange membrane fuel cell was implemented to elucidate heat balance through the membrane electrode…”
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13
Harvesting Electronic Waste for the Development of Highly Efficient Eco‐Design Electrodes for Electrocatalytic Water Splitting
Published in Advanced energy materials (05-12-2018)“…Disposal of e‐wastes in prescribed landfills poses serious environmental concerns at both a local and global scale. Recovering valuable materials from e‐wastes…”
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14
Comparative investigation of the molybdenum sulphide doped with cobalt and selenium towards hydrogen evolution reaction
Published in Electrochimica acta (01-05-2018)“…Hydrogen evolution reaction (HER) using earth abundant catalyst is one of the most promising approaches to replace precious platinum (Pt) and Pt-based…”
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Sophisticated 3D microstructural reconstruction for numerical analysis of electrolyte imbibition in Li-ion battery separator and anode
Published in Materials science & engineering. B, Solid-state materials for advanced technology (01-10-2022)“…•Staining PE separator for precise 3D reconstruction of microstructure.•Osmium staining reveals a good contrast between the polymeric separator and pore…”
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16
Computational analysis of transport phenomena in proton exchange membrane for polymer electrolyte fuel cells
Published in Journal of membrane science (15-02-2008)“…The steady-state and isothermal mathematical modeling of polymer electrolyte fuel cells was conducted based on two-phase fuel transport using computational…”
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17
Accurate measurement of uranium and thorium in naturally occurring radioactive materials to overcome complex matrix interference
Published in Applied radiation and isotopes (01-03-2023)“…A standard addition (SA) calibration method for determining uranium and thorium in naturally-occurring radioactive materials (NORMs) was studied. Pretreatment…”
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18
Metal-organic framework derived NiMo polyhedron as an efficient hydrogen evolution reaction electrocatalyst
Published in Applied surface science (01-06-2019)“…Exploring efficient electrocatalyst for H2 evolution reaction (HER) and replacing the noble metal-based catalysts with inexpensive non-noble metal-based HER…”
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Computational modeling of proton exchange membrane fuel cells including gas-crossover behavior
Published in International journal of energy research (01-12-2013)“…SUMMARY In a typical proton exchange membrane fuel cell (PEMFC), Nafion, i.e. a typical proton‐exchange membrane, allows to permeate hydrogen and oxygen to the…”
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Journal Article Conference Proceeding -
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Influence of the Nafion agglomerate morphology on the water-uptake behavior and fuel cell performance in the proton exchange membrane fuel cells
Published in Applied surface science (01-07-2019)“…In the preparation of catalyst ink for proton exchange membrane fuel cell, the dispersing solvent has significant influence on the physicochemical and…”
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