Search Results - "JUNG, Namgee"
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Toward High-Performance Pt-Based Nanocatalysts for Oxygen Reduction Reaction through Organic–Inorganic Hybrid Concepts
Published in Chemistry of materials (09-01-2018)“…Pt-based multistructured nanocatalysts such as alloy, core–shell, and surface Pt-rich nanoparticles have been extensively studied for hydrogen fuel cell…”
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Pt-based nanoarchitecture and catalyst design for fuel cell applications
Published in Nano today (01-08-2014)“…•The most recent advances in catalysts and support materials for fuel cell application are extensively reviewed.•The nanoarchitectured metal nanoparticles…”
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Poly(styrene sulfonic acid)-Grafted Carbon Black Synthesized by Surface-Initiated Atom Transfer Radical Polymerization
Published in Molecules (Basel, Switzerland) (18-05-2023)“…Owing to their excellent electrical conductivity and robust mechanical properties, carbon-based nanocomposites are being used in a wide range of applications…”
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Effects of anode flooding on the performance degradation of polymer electrolyte membrane fuel cells
Published in Journal of power sources (15-11-2014)“…Polymer electrolyte membrane fuel cell (PEMFC) stacks in a fuel cell vehicle can be inevitably exposed to harsh environments such as cold weather in winter,…”
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Investigating the effect of solvent composition on ink structure and crack formation in polymer electrolyte membrane fuel cell catalyst layers
Published in The Korean journal of chemical engineering (01-10-2023)“…To improve the performance of polymer electrolyte membrane fuel cells (PEMFCs), controlling the microstructure of the membrane electrode assembly (MEA)…”
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Experimental simulation study on the poisoning effect of hydrocarbon-based ionomers on Pt catalysts for fuel cells
Published in Electrochemistry communications (01-12-2023)“…[Display omitted] •Poisoning effect of benzene-containing hydrocarbon-based ionomers on Pt catalysts.•Two types of orientation-dependent adsorption of…”
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Molecular modelling of fused heterocycle-based asymmetric non-fullerene acceptors for efficient organic solar cells
Published in Journal of Saudi Chemical Society (01-11-2023)“…Heterocycle substitution plays a key role in designing an ultra-narrower bandgap (ultra-NBG) small molecule-based (SM) non-fullerene acceptors (NFAs) for…”
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Tailoring the Electronic Structure of Nanoelectrocatalysts Induced by a Surface-Capping Organic Molecule for the Oxygen Reduction Reaction
Published in The journal of physical chemistry letters (18-04-2013)“…Capping organic molecules, including oleylamine, strongly adsorbed onto Pt nanoparticles during preparation steps are considered undesirable species for the…”
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Redesign of Anode Catalyst for Sustainable Survival of Fuel Cells
Published in Advanced science (01-03-2024)“…Polymer electrolyte membrane fuel cells (PEMFCs) suffer from severe performance degradation when operating under harsh conditions such as fuel starvation,…”
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Effect of surface composition of Pt–Fe nanoparticles for oxygen reduction reactions
Published in International journal of hydrogen energy (12-09-2014)“…The aim of this work is primarily to rationalize the effect of surface composition on electrocatalytic activity. To investigate this point, we compared two…”
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Modulating Catalytic Activity and Durability of PtFe Alloy Catalysts for Oxygen Reduction Reaction Through Controlled Carbon Shell Formation
Published in Nanomaterials (Basel, Switzerland) (19-10-2019)“…Demand on synthetic approaches to high performance electrocatalyst with enhanced durability is increasing for fuel cell applications. In this work, we present…”
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12
Antipoisoning catalysts for the selective oxygen reduction reaction at the interface between metal nanoparticles and the electrolyte
Published in Carbon energy (01-07-2023)“…One of the primary challenges in relation to phosphoric acid fuel cells is catalyst poisoning by phosphate anions that occurs at the interface between metal…”
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Performance Analysis of Membrane Electrode Assemblies with Various Compositions Under Non-uniform Large Area Operating Environments of Fuel Cells
Published in International journal of precision engineering and manufacturing-green technology (01-03-2024)“…In this study, we suggest an experimental method to accurately understand the unique performance of membrane electrode assembly (MEA) according to the…”
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Origin and Formation Mechanism of Carbon Shell-Encapsulated Metal Nanoparticles for Powerful Fuel Cell Durability
Published in Nanomaterials (Basel, Switzerland) (01-11-2023)“…Proton exchange membrane fuel cells (PEMFCs) face technical issues of performance degradation due to catalyst dissolution and agglomeration in real-world…”
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Influence of hydrophilicity in micro-porous layer for polymer electrolyte membrane fuel cells
Published in Electrochimica acta (01-02-2011)“…Water management is one of the most important factors for improving the performance in polymer electrolyte membrane fuel cells (PEMFCs). The micro-porous…”
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Electrochemical Analysis for Demonstrating CO Tolerance of Catalysts in Polymer Electrolyte Membrane Fuel Cells
Published in Nanomaterials (Basel, Switzerland) (08-10-2019)“…Since trace amounts of CO in H2 gas produced by steam reforming of methane causes severe poisoning of Pt-based catalysts in polymer electrolyte membrane fuel…”
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Effect of Heat Treatment on Structure of Carbon Shell-Encapsulated Pt Nanoparticles for Fuel Cells
Published in Nanomaterials (Basel, Switzerland) (24-05-2024)“…Polymer electrolyte membrane fuel cells (PEMFCs) have attracted much attention as highly efficient, eco-friendly energy conversion devices. However,…”
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Quaternary Ammonium-Bearing Perfluorinated Polymers for Anion Exchange Membrane Applications
Published in Membranes (Basel) (26-10-2020)“…Perfluorinated polymers are widely used in polymer electrolyte membranes because of their excellent ion conductivity, which are attributed to the well-defined…”
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Facile Strategy for Mass Production of Pt Catalysts for Polymer Electrolyte Membrane Fuel Cells Using Low-Energy Electron Beam
Published in Nanomaterials (Basel, Switzerland) (06-11-2020)“…There are so many variables affecting the large-scale chemical synthesis of nanoparticles that mass production remains a challenge. Here, using a…”
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Surface engineering of Pd-based nanoparticles by gas treatment for oxygen reduction reaction
Published in The Korean journal of chemical engineering (01-08-2020)“…In many catalyst systems, including fuel cell applications, control of the catalyst surface composition is important for improving activity since catalytic…”
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