Search Results - "Sik Kang, Yun"

Bio‐Derived Co2P Nanoparticles Supported on Nitrogen‐Doped Carbon as Promising Oxygen Reduction Reaction Electrocatalyst for Anion Exchange Membrane Fuel Cells by Lee, Dong Wook, Jang, Jue‐Hyuk, Jang, Injoon, Kang, Yun Sik, Jang, Seguen, Lee, Kwan Young, Jang, Jong Hyun, Kim, Hyung‐Juhn, Yoo, Sung Jong

“…Recently, nonnoble‐metal catalysts such as a metal coordinated to nitrogen doped in a carbon matrix have been reported to exhibit superior oxygen reduction…”
Get full text

Multiplex lithography for multilevel multiscale architectures and its application to polymer electrolyte membrane fuel cell by Cho, Hyesung, Moon Kim, Sang, Sik Kang, Yun, Kim, Junsoo, Jang, Segeun, Kim, Minhyoung, Park, Hyunchul, Won Bang, Jung, Seo, Soonmin, Suh, Kahp-Yang, Sung, Yung-Eun, Choi, Mansoo

“…The production of multiscale architectures is of significant interest in materials science, and the integration of those structures could provide a…”
Get full text

Improved mass transfer using a pore former in cathode catalyst layer in the direct methanol fuel cell by Cho, Yoon-Hwan, Jung, Namgee, Kang, Yun Sik, Chung, Dong Young, Lim, Ju Wan, Choe, Heeman, Cho, Yong-Hun, Sung, Yung-Eun

“…The cathode catalyst layer in direct methanol fuel cells (DMFCs) was prepared using polystyrene beads as a pore former. Field emission scanning electron…”
Get full text

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…”
Get full text

The dependence of performance degradation of membrane electrode assembly on platinum loading in polymer electrolyte membrane fuel cell by Cho, Yong-Hun, Lim, Ju Wan, Kang, Yun Sik, Cho, Yoon-Hwan, Kim, Ok-Hee, Kwon, Nak-Hyun, Kwon, Oh Joong, Yoon, Won-Sub, Choe, Heeman, Sung, Yung-Eun

“…The durability of membrane electrode assemblies (MEAs) with varying amounts of Pt loading on the cathode of polymer electrolyte membrane fuel cells was…”
Get full text

Development of robust Pt shell through organic hydride donor in PtCo@Pt core-shell electrocatalysts for highly stable proton exchange membrane fuel cells by Lee, Sehyun, Jang, Jue-Hyuk, Jang, Injoon, Choi, Daeil, Lee, Kug-Seung, Ahn, Docheon, Kang, Yun Sik, Park, Hee-Young, Yoo, Sung Jong

“…[Display omitted] •The electrocatalyst has a PtCo@Pt core-shell structure.•PtCo nanoparticles were encapsulated in a Pt shell using an organic hydride…”
Get full text

Investigation of the effect of carbon-covering layer on catalyst layer in polymer electrolyte membrane fuel cell in low relative humidity condition by Jang, Segeun, Seol, Changwook, Kang, Yun Sik, Kim, Sang Moon, Yoo, Sung Jong

“…The application field of the fuel cell system has recently expanded to portable devices and unmanned aircraft systems, which require development of high…”
Get full text

Bending-durable membrane-electrode assembly using metal nanowires for bendable polymer electrolyte membrane fuel cell by Kang, Yun Sik, Won, Phillip, Ko, Seung Hwan, Park, Taehyun, Yoo, Sung Jong

“…We herein report a simple and effective strategy to fabricate the bending-durable membrane-electrode assembly for bendable polymer electrolyte membrane fuel…”
Get full text

Prism-patterned Nafion membrane for enhanced water transport in polymer electrolyte membrane fuel cell by Kim, Sang Moon, Kang, Yun Sik, Ahn, Chiyeong, Jang, Segeun, Kim, Minhyoung, Sung, Yung-Eun, Yoo, Sung Jong, Choi, Mansoo

“…Here, we report a simple and effective strategy to enhance the performance of the polymer electrolyte membrane fuel cell by imprinting prism-patterned arrays…”
Get full text

Effect of post heat-treatment of composition-controlled PdFe nanoparticles for oxygen reduction reaction by Kang, Yun Sik, Choi, Kwang-Hyun, Ahn, Docheon, Lee, Myeong Jae, Baik, Jaeyoon, Chung, Dong Young, Kim, Mi-Ju, Lee, Stanfield Youngwon, Kim, Minhyoung, Shin, Heejong, Lee, Kug-Seung, Sung, Yung-Eun

“…Composition-controlled and carbon-supported PdFe nanoparticles (NPs) were prepared via a modified chemical synthesis after heat-treatment at high temperature…”
Get full text

Investigating the effect of solvent composition on ink structure and crack formation in polymer electrolyte membrane fuel cell catalyst layers by Woo, Seong Hyeon, Kim, Sungmin, Woo, Seunghee, Park, Seok-Hee, Kang, Yun Sik, Jung, Namgee, Yim, Sung-Dae

“…To improve the performance of polymer electrolyte membrane fuel cells (PEMFCs), controlling the microstructure of the membrane electrode assembly (MEA)…”
Get full text

Anion Constructor for Atomic‐Scale Engineering of Antiperovskite Crystals for Electrochemical Reactions by Lee, Sehyun, Jung, Jae Young, Jang, Injoon, Choi, Daeil, Lee, Myeong Jae, Lee, Dong Wook, Jang, Jue‐Hyuk, Lee, Jeong Hee, Jin, Haneul, Im, Kyungmin, Lee, Eungjun, Kim, Seung‐hoon, Kim, Nam Dong, Lee, Soo‐Hyoung, Kang, Yun Sik, Park, Hee‐Young, Chun, Dongwon, Ham, Hyung Chul, Lee, Kug‐Seung, Ahn, Docheon, Kim, Pil, Yoo, Sung Jong

“…Among the Pt group metals, Pd has been considered the most efficient for application in electrocatalysts as an alternative to Pt. Despite the comparable…”
Get full text

Rational Generation of Fe−Nx Active Sites in Fe−N−C Electrocatalysts Facilitated by Fe−N Coordinated Precursors for the Oxygen Reduction Reaction by Kim, Minhyoung, Yoo, Ji Mun, Ahn, Chi‐Yeong, Jang, Jue‐Hyuk, Son, Yoon Jun, Shin, Heejong, Kang, Jiho, Kang, Yun Sik, Yoo, Sung Jong, Lee, Kug‐Seung, Sung, Yung‐Eun

“…Fe−N−C catalysts synthesized by pyrolysis of Fe and N precursors have been intensively studied due to their remarkable activities for the electrochemical…”
Get full text

Performance Analysis of Membrane Electrode Assemblies with Various Compositions Under Non-uniform Large Area Operating Environments of Fuel Cells by Kim, Sungmin, Ji, Yunseong, Sohn, Young-Jun, Woo, Seunghee, Park, Seok-Hee, Jung, Namgee, Kang, Yun Sik, Yim, Sung-Dae

“…In this study, we suggest an experimental method to accurately understand the unique performance of membrane electrode assembly (MEA) according to the…”
Get full text

Lithium manganese phosphate-carbon composite as a highly active and durable electrocatalyst for oxygen reduction reaction by Lee, Myeong Jae, Kang, Jin Soo, Ahn, Docheon, Chung, Dong Young, Park, Subin, Son, Yoon Jun, Yoo, Ji Mun, Shin, Heejong, Kang, Yun Sik, Sung, Nark-Eon, Lee, Kug-Seung, Sung, Yung-Eun

“…Development of Pt-free electrocatalysts for oxygen reduction reaction (ORR) is one of the most important tasks for fuel cell commercialization. Various Mn…”
Get full text

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…”
Get full text

Multidimensional Anodized Titanium Foam Photoelectrode for Efficient Utilization of Photons in Mesoscopic Solar Cells by Kang, Jin Soo, Choi, Hyelim, Kim, Jin, Park, Hyeji, Kim, Jae‐Yup, Choi, Jung‐Woo, Yu, Seung‐Ho, Lee, Kyung Jae, Kang, Yun Sik, Park, Sun Ha, Cho, Yong‐Hun, Yum, Jun‐Ho, Dunand, David C., Choe, Heeman, Sung, Yung‐Eun

“…Mesoscopic solar cells based on nanostructured oxide semiconductors are considered as a promising candidates to replace conventional photovoltaics employing…”
Get full text

Highly active bimetallic CuFe–N–C electrocatalysts for oxygen reduction reaction in alkaline media by Kang, Yun Sik, Heo, Yoonhye, Jung, Jae Young, Sohn, Yeonsun, Lee, Soo-Hyoung, Jang, Jue-Hyuk, Kim, Pil, Yoo, Sung Jong

“…[Display omitted] •CuFe–N–C catalyst was prepared by annealing metal precursors-adsorbed polyaniline.•CuFe–N–C catalysts showed excellent oxygen reduction…”
Get full text

Facile synthesis of platinum alloy electrocatalyst via aluminum reducing agent and the effect of post heat treatment for oxygen reduction reaction by Kang, Yun Sik, Yoo, Sung Jong, Lee, Myeong Jae, Kim, Mi-Ju, Lee, Stanfield Youngwon, Lee, Kug-Seung, Sung, Yung-Eun

“…We have synthesized carbon-supported Pt and PtM (Au, Pd) nanoparticles (NPs) by using an aluminum (Al) metal foil as a reducing agent and conducted post heat…”
Get full text

Corporate Social Responsibility and Financial Performance in Korean Retail Firms by Jeong Hwan Lee, Yun-Sik Kang, 김상수

“…Purpose – We examine how a Korean retail firm’s social responsibility is related to its financial performances. The traditional view of corporation expects a…”
Get full text