Search Results - "Hong, Bo Ki"

Effects of operating parameters on hydrogen crossover rate through Nafion® membranes in polymer electrolyte membrane fuel cells by Baik, Kyung Don, Hong, Bo Ki, Kim, Min Soo

“…This study examines the effects of operating parameters—comprising temperature, relative humidity, hydrogen pressure, and membrane thickness—on hydrogen…”
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Electromechanical diagnostic method for monitoring cracks in polymer electrolyte fuel cell electrodes by Jang, Kyung-Lim, Kim, Sanwi, Jeong, Byeong-Heon, Oh, Jong-Gil, Hong, Bo Ki, Kim, Taek-Soo

“…A significantly challenging issue in polymer electrolyte fuel cells (PEFCs) is the insufficient durability of the membrane electrode assembly (MEA) electrodes…”
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Investigation of freeze/thaw durability in polymer electrolyte fuel cells by Lim, Soo-Jin, Park, Gu-Gon, Park, Jin-Soo, Sohn, Young-Jun, Yim, Sung-Dae, Yang, Tae-Hyun, Hong, Bo Ki, Kim, Chang-Soo

“…This study aims to investigate the effect of different gas diffusion layers (GDLs) on freeze/thaw condition durability in polymer electrolyte fuel cells…”
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Understanding the voltage reversal behavior of automotive fuel cells by Mandal, Pratiti, Hong, Bo Ki, Oh, Jong-Gil, Litster, Shawn

“…Hydrogen starvation at the anode of a polymer electrolyte fuel cell (PEFC) causes cell voltage reversal followed by water electrolysis and carbon corrosion due…”
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On the impact of water activity on reversal tolerant fuel cell anode performance and durability by Hong, Bo Ki, Mandal, Pratiti, Oh, Jong-Gil, Litster, Shawn

“…Durability of polymer electrolyte fuel cells in automotive applications can be severely affected by hydrogen starvation arising due to transients during the…”
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Effects of anode flooding on the performance degradation of polymer electrolyte membrane fuel cells by Kim, Mansu, Jung, Namgee, Eom, KwangSup, Yoo, Sung Jong, Kim, Jin Young, Jang, Jong Hyun, Kim, Hyoung-Juhn, Hong, Bo Ki, Cho, EunAe

“…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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Effects of curing systems on the mechanical and chemical ageing resistance properties of gasket compounds based on ethylene-propylene-diene-termonomer rubber in a simulated fuel cell environment by Nah, Changwoon, Kim, Seung Gyeom, Shibulal, Gopi Sathi, Yoo, Yong Hwan, Mensah, Bismark, Jeong, Byeong-Heon, Hong, Bo Ki, Ahn, Jou-Hyeon

“…Ethylene-propylene-diene-termonomer (EPDM) rubber based fuel cell gasket compounds have been designed and explored the effects of various vulcanization systems…”
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Mechanical Behavior of Free-Standing Fuel Cell Electrodes on Water Surface by Kim, Sanwi, Kim, Jae-Han, Oh, Jong-Gil, Jang, Kyung-Lim, Jeong, Byeong-Heon, Hong, Bo Ki, Kim, Taek-Soo

“…Fundamental understanding of the mechanical behavior of polymer electrolyte fuel cell electrodes as free-standing materials is essential to develop…”
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Water condensation behavior on the surface of a network of superhydrophobic carbon fibers with high-aspect-ratio nanostructures by Ko, Tae-Jun, Her, Eun Kyu, Shin, Bongsu, Kim, Ho-Young, Lee, Kwang-Ryeol, Hong, Bo Ki, Kim, Sae Hoon, Oh, Kyu Hwan, Moon, Myoung-Woon

“…We have explored the condensation behavior of water on a superhydrophobic carbon fiber (CF) network with high-aspect-ratio hair-like nanostructures…”
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Novel technique for measuring oxygen crossover through the membrane in polymer electrolyte membrane fuel cells by Baik, Kyung Don, Hong, Bo Ki, Kim, Min Soo

“…In this study, the exact amount of oxygen crossover that reacts with hydrogen has been investigated using a mass spectrometer system. By measuring the amount…”
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Effects of Pt loading in the anode on the durability of a membrane–electrode assembly for polymer electrolyte membrane fuel cells during startup/shutdown cycling by Eom, KwangSup, Kim, GyeongHee, Cho, EunAe, Jang, Jong Hyun, Kim, Hyoung-Juhn, Yoo, Sung Jong, Kim, Soo-Kil, Hong, Bo Ki

“…A polymer electrolyte membrane fuel cell (PEMFC) stack of a fuel cell vehicle (FCV) is inevitably exposed to reverse current conditions, which are formed by…”
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Degradation behavior of a polymer electrolyte membrane fuel cell employing metallic bipolar plates under reverse current condition by Eom, KwangSup, Cho, EunAe, Nam, Suk-Woo, Lim, Tae-Hoon, Jang, Jong Hyun, Kim, Hyoung-Juhn, Hong, Bo Ki, Yang, Yoo Chang

“…► The single cells are exposed to the reverse current condition; potentials of 1.4V. ► The cell with metal BPs exhibits faster degradation than that with…”
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Effects of anisotropic bending stiffness of gas diffusion layers on the performance of polymer electrolyte membrane fuel cells with bipolar plates employing different channel depths by Baik, Kyung Don, Hong, Bo Ki, Han, Kookil, Kim, Min Soo

“…The effects of the anisotropic bending stiffness of gas diffusion layers (GDLs) on the performance of polymer electrolyte membrane fuel cells with metallic…”
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Effects of residual oxygen partial pressure on the degradation of polymer electrolyte membrane fuel cells under reverse current conditions by Eom, KwangSup, Jo, Yoo Yeon, Cho, EunAe, Lim, Tae-Hoon, Jang, Jong Hyun, Kim, Hyoung-Juhn, Hong, Bo Ki, Lee, Jong Hyun

“…► Increasing the residual p O 2 under reverse current conditions accelerates performance decay. ► Cathode degradation was revealed by an increase in Rct and a…”
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Optimization of GDLs for high-performance PEMFC employing stainless steel bipolar plates by Eom, KwangSup, Cho, EunAe, Jang, JongHyun, Kim, Hyoung-Juhn, Lim, Tae-Hoon, Hong, Bo Ki, Lee, Jong Hyun

“…The effects of polytetraflouroethylene (PTFE) content in the gas diffusion layer (GDL) on the performance of PEMFCs with stainless-steel bipolar plates are…”
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Correlation between anisotropic bending stiffness of GDL and land/channel width ratio of polymer electrolyte membrane fuel cells by Baik, Kyung Don, Hong, Bo Ki, Han, Kookil, Kim, Min Soo

“…A correlation between anisotropic bending stiffness of a gas diffusion layer (GDL) and land/channel width ratios of metallic bipolar plates (MBPs) in polymer…”
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Influence of anisotropic bending stiffness of gas diffusion layers on the electrochemical performances of polymer electrolyte membrane fuel cells by Han, Kookil, Hong, Bo Ki, Kim, Sae Hoon, Ahn, Byung Ki, Lim, Tae Won

“…The effects of gas diffusion layer’s (GDL’s) anisotropic bending stiffness on the electrochemical performances of polymer electrolyte membrane fuel cells have…”
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On the origin of deactivation of reversal-tolerant fuel cell anodes under voltage reversal conditions by Joo, Taigyu, Hu, Leiming, Hong, Bo Ki, Oh, Jong-Gil, Litster, Shawn

“…Over the past decade, extensive efforts have been carried out to increase the durability of polymer electrolyte fuel cells (PEFCs) under voltage reversal…”
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Miscibility of syndiotactic polystyrene/atactic polystyrene blends by crystallization kinetics and enthalpy relaxation by Hong, Bo Ki, Jo, Won Ho, Kim, Jungahn

“…The miscibility of syndiotactic polystyrene (sPS)/atactic polystyrene (aPS) blends, whose constituent polymers have close T gs was investigated by…”
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Powering the Future through Hydrogen and Polymer Electrolyte Membrane Fuel Cells : Current commercialisation and key challenges with focus on work at Hyundai by Hong, Bo Ki, Kim, Sae Hoon, Kim, Chi Myung

“…To date, the world has been making a massive shift away from fossil fuels towards cleaner energy sources. For the past decade, polymer electrolyte membrane…”
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