Search Results - "Ahn, Minjeh"

Surfactant assisted geometric barriers on PtNi@C electrocatalyst for phosphoric acid fuel cells by Jang, Injoon, Ahn, Minjeh, Lee, Sehyun, Yoo, Sung Jong

“…[Display omitted] •The electrocatalyst has a PtNi@C structure.•The carbon shells of PtNi@C formed by the carbonization of oleylamine.•The carbon shells act as…”
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Synthesis and growth mechanism of carbon-supported nanoparticle catalysts by physical vapor deposition onto a liquid medium substrate by Cha, In Young, Kim, Hyung Tae, Ahn, Minjeh, Jang, Jong Hyun, Kim, Young Gyu, Sung, Yung-Eun, Yoo, Sung Jong

“…[Display omitted] •Carbon supported Pt nanoparticles were prepared by sputtering method.•Uniform Pt nanoparticles were synthesized onto an ionic liquid.•A new…”
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Highly Active and Durable Ordered Intermetallic PdFe Electrocatalyst for Formic Acid Electrooxidation Reaction by Kang, Yun Sik, Choi, Daeil, Cho, Jinwon, Park, Hee-Young, Lee, Kug-Seung, Ahn, Minjeh, Jang, Injoon, Park, Taehyun, Ham, Hyung Chul, Yoo, Sung Jong

“…In this paper, we report the preparation of a highly active and durable ordered intermetallic PdFe catalyst supported on carbon black for formic acid oxidation…”
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Influence of hydrophilicity in micro-porous layer for polymer electrolyte membrane fuel cells by Ahn, Minjeh, Cho, Yong-Hun, Cho, Yoon-Hwan, Kim, Jinho, Jung, Namgee, Sung, Yung-Eun

“…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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Anode electrode with carbon buffer layer for improving methanol oxidation reaction in direct methanol fuel cell by YUN SIK KANG, NAMGEE JUNG, CHOI, Kwang-Hyun, MYEONG JAE LEE, MINJEH AHN, CHO, Yong-Hun, SUNG, Yung-Eun

“…An anode electrode with the carbon buffer layer is fabricated to increase the performance of direct methanol fuel cell (DMFC). The carbon buffer layer is…”
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Improved platinum‐nickel nanoparticles with dopamine‐derived carbon shells for proton exchange membrane fuel cells by Jang, Injoon, Lee, Sehyun, Jang, Jue‐Hyuk, Ahn, Minjeh, Yoo, Sung Jong

“…Summary Using platinum‐based alloy nanocatalysts with other transition metals has the advantages of enhancing the oxygen reduction reaction (ORR) activity and…”
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Rhodium–Tin Binary NanoparticleA Strategy to Develop an Alternative Electrocatalyst for Oxygen Reduction by Ahn, Minjeh, Cha, In Young, Cho, Jinwon, Ham, Hyung Chul, Sung, Yung-Eun, Yoo, Sung Jong

“…A Rh–Sn nanoparticle is achieved by combinatorial approaches for application as an active and stable electrocatalyst in the oxygen reduction reaction. Both…”
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Simultaneous etching and transfer — Free multilayer graphene sheets derived from C60 thin films by Hudaya, Chairul, Ahn, Minjeh, Oh, Si Hyoung, Jeon, Bup Ju, Sung, Yung-Eun, Lee, Joong Kee

“…[Display omitted] Despite the advantage of chemical vapor deposition (CVD) for realization of large area epitaxial growth of graphene on transition metal…”
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Performance of membrane electrode assemblies using PdPt alloy as anode catalysts in polymer electrolyte membrane fuel cell by Cho, Yoon-Hwan, Cho, Yong-Hun, Lim, Ju Wan, Park, Hee-Young, Jung, Namgee, Ahn, Minjeh, Choe, Heeman, Sung, Yung-Eun

“…Pd-based nanoparticles, such as 40 wt.% carbon-supported Pd50Pt50, Pd75Pt25, Pd90Pt10 and Pd95Pt5, for anode electrocatalyst on polymer electrolyte membrane…”
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Stability characteristics of Pt1Ni1/C as cathode catalysts in membrane electrode assembly of polymer electrolyte membrane fuel cell by CHO, Yong-Hun, JEON, Tae-Yeol, CHOE, Heeman, SUNG, Yung-Eun, SUNG JONG YOO, LEE, Kug-Seung, AHN, Minjeh, KIM, Ok-Hee, CHO, Yoon-Hwan, JU WAN LIM, JUNG, Namgee, YOON, Won-Sub

“…To understand the difference in degradation characteristics between carbon-supported platinum (Pt/C) and platinum-nickel alloy (Pt1Ni1/C) cathode catalysts in…”
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Methanol-tolerant cathode electrode structure composed of heterogeneous composites to overcome methanol crossover effects for direct methanol fuel cell by Jung, Namgee, Cho, Yoon-Hwan, Ahn, Minjeh, Lim, Ju Wan, Kang, Yun Sik, Chung, Dong Young, Kim, Jinho, Cho, Yong-Hun, Sung, Yung-Eun

“…A methanol-tolerant cathode electrode composed of heterogeneous composites was developed to overcome CO poisoning and large O 2 mass transfer overpotential…”
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Stability characteristics of Pt 1Ni 1/C as cathode catalysts in membrane electrode assembly of polymer electrolyte membrane fuel cell by Cho, Yong-Hun, Jeon, Tae-Yeol, Yoo, Sung Jong, Lee, Kug-Seung, Ahn, Minjeh, Kim, Ok-Hee, Cho, Yoon-Hwan, Lim, Ju Wan, Jung, Namgee, Yoon, Won-Sub, Choe, Heeman, Sung, Yung-Eun

“…[Display omitted] ► The stability test of the MEA was performed at practical operation conditions. ► The MEA with Pt 1Ni 1/C catalyst showed severe…”
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Performance enhancement of membrane electrode assemblies with plasma etched polymer electrolyte membrane in PEM fuel cell by Cho, Yong-Hun, Bae, Jin Woo, Cho, Yoon-Hwan, Lim, Ju Wan, Ahn, Minjeh, Yoon, Won-Sub, Kwon, Nak-Hyun, Jho, Jae Young, Sung, Yung-Eun

“…In this work, a surface modified Nafion 212 membrane was fabricated by plasma etching in order to enhance the performance of a membrane electrode assembly…”
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Preparation process for improving cathode electrode structure in direct methanol fuel cell by Jung, Namgee, Cho, Yoon-Hwan, Choi, Kwang-Hyun, Lim, Ju Wan, Cho, Yong-Hun, Ahn, Minjeh, Kang, Yun Sik, Sung, Yung-Eun

“…The cathode electrode structure of the direct methanol fuel cell (DMFC) was improved by a novel catalyst ink preparation method. Regulation of the solvent…”
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Enhancement of polymer electrolyte membrane fuel cell performance by boiling a membrane electrode assembly in sulfuric acid solution by Cho, Yong-Hun, Kim, Jinho, Yoo, Sung Jong, Jeon, Tae-Yeol, Ahn, Minjeh, Jung, Namgee, Cho, Yoon-Hwan, Lim, Ju Wan, Lee, Joong Kee, Yoon, Won-Sub, Sung, Yung-Eun

“…A catalyst-coated membrane (CCM) as used in the membrane electrode assembly (MEA) of a polymer electrolyte membrane fuel cell is treated by dilute sulfuric…”
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