Search Results - "Kim, Junbom"
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Facile synthesis of three-dimensional graphene/nickel oxide nanoparticles composites for high performance supercapacitor electrodes
Published in Chemical engineering journal (Lausanne, Switzerland : 1996) (15-03-2015)“…[Display omitted] •The 3D porous graphene/NiO nanoparticle composites (3D-RGNi) are synthesized by a facile method.•The porous reduced graphene decorated with…”
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Journal Article -
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Highly durable Pt/graphene oxide and Pt/C hybrid catalyst for polymer electrolyte membrane fuel cell
Published in Journal of power sources (2014)“…We report a highly durable hybrid catalyst composed of Pt/graphene oxide (GO) and Pt/C catalyst for polymer electrolyte membrane fuel cell (PEMFC). The…”
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Journal Article -
3
Hybrid electrode effects on polymer electrolyte membrane fuel cells
Published in International journal of hydrogen energy (13-01-2014)“…Research on membrane electrode assemblies (MEA) is focused on reducing cost and increasing durability in polymer electrolyte membrane fuel cells (PEMFC)…”
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Journal Article -
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Effect of manifold size on PEMFC performance with metal foam flow field
Published in International journal of hydrogen energy (27-06-2024)“…Metal foam flow fields are considered as an alternative to conventional channel/rib flow field in polymer electrolyte membrane fuel cell (PEMFC) because of the…”
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Journal Article -
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Membrane electrode assembly degradation by dry/wet gas on a PEM fuel cell
Published in International journal of hydrogen energy (01-12-2010)“…The vehicle that use a Polymer Electrolyte Membrane Fuel Cell (PEMFC) as a power source frequently experiences start up and shut down. Membrane Electrode…”
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Journal Article -
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Optimum content of Nafion ionomer for the fabrication of MEAs in PEMFCs with spray-coated Pt/CNT electrodes
Published in Metals and materials international (01-10-2011)“…To enhance the performance of a polymer electrolyte membrane fuel cell (PEMFC), a Pt catalyst was supported on carbon nanotubes (CNTs) and the optimum content…”
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Journal Article -
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Effects of ionomer content on Pt catalyst/ordered mesoporous carbon support in polymer electrolyte membrane fuel cells
Published in Journal of power sources (15-01-2013)“…In this paper, the optimum Nafion ionomer content in platinum (Pt) dispersed on ordered mesoporous carbon (OMC) catalyst is investigated. The ionomer content…”
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Journal Article -
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Accelerated test analysis of reversal potential caused by fuel starvation during PEMFCs operation
Published in International journal of hydrogen energy (01-04-2010)“…The performance of polymer electrolyte membrane fuel cells (PEMFCs) was reduced due to the degradation of the catalyst layer when reverse potential was…”
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Journal Article -
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Durability test with fuel starvation using a Pt/CNF catalyst in PEMFC
Published in Nanoscale research letters (05-01-2012)“…In this study, a catalyst was synthesized on carbon nanofibers [CNFs] with a herringbone-type morphology. The Pt/CNF catalyst exhibited low hydrophilicity, low…”
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Journal Article -
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Study of external humidification method in proton exchange membrane fuel cell
Published in Journal of power sources (16-02-2004)“…Water management is essential for performance enhancement of a PEMFC because proton conductivity depends on hydration of the polymer. An external…”
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Journal Article -
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High performance proton exchange membrane fuel cells with sputter-deposited Pt layer electrodes
Published in Electrochimica acta (1997)“…An ultra-low platinum (Pt) loading (0.1 mg cm 2) electrocatalyst layer (1 μm thick) was deposited on an uncatalyzed gas diffusion electrode utilizing the…”
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Journal Article -
12
Polymer electrolyte membrane fuel cell performance degradation by coolant leakage and recovery
Published in Journal of power sources (15-03-2013)“…Coolant leakage leads to decrease in performance during the operation of electric vehicles which make use of polymer electrolyte membrane fuel cells (PEMFC)…”
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Effect of Reverse Voltage on Proton Exchange Membrane Fuel Cell Performance
Published in 2006 International Forum on Strategic Technology (01-10-2006)“…Reverse voltage could be occurred on proton exchange membrane fuel cell (PEMFC) by fuel starvation and/or uneven gas distribution in flow channel. The…”
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Conference Proceeding -
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Impurity effect on proton exchange membrane fuel cell
Published in 2007 International Forum on Strategic Technology (01-10-2007)“…Hydrogen produced by reforming of fossil fuel would be preferable in early stage of proton exchange membrane (PEM) fuel cell operation. Impurities other than…”
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Conference Proceeding -
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Hybrid type bipolar plate for proton exchange membrane fuel cell
Published in Proceedings. The 9th Russian-Korean International Symposium on Science and Technology, 2005. KORUS 2005 (2005)“…To overcome conductivity limitation showed in composite plate, new concept of bipolar plate was developed using metallic foam as conductivity enhancing…”
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Conference Proceeding -
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Temperature related study on PEM fuel cell
Published in Proceedings. The 8th Russian-Korean International Symposium on Science and Technology, 2004. KORUS 2004 (2004)“…In order to commercialize fuel cell, there have been studies in many fields such as MEA (membrane and electrode assembly), reformer, humidifier and bipolar…”
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Conference Proceeding -
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A study of PEMFC operating condition
Published in Proceedings KORUS 2000. The 4th Korea-Russia International Symposium On Science and Technology (2000)“…Fuel gas utilization and gas humidity of internal humidification method were studied for the improved performance of proton exchange membrane fuel cell…”
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Conference Proceeding -
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Thermal modeling of a nickel-hydrogen battery
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Dissertation -
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Thermal modeling of a nickel-hydrogen battery
Published 01-01-1992“…The maximum temperature difference allowed inside a nickel-hydrogen battery to avoid water relocation was calculated by a graphical method using the vapor…”
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Dissertation