Zobrazeno 1 - 10
of 49
pro vyhledávání: '"Chang Hyun Lee"'
Autor:
Sujik Hong, Jaeyoung Lee, Chang Hyun Lee, Sunki Chung, Jihyeon Park, Jin Pyo Hwang, Sunghyun Uhm, Sungyool Bong
Publikováno v:
ACS Catalysis. 11:4722-4729
In this study, boron-incorporated palladium catalysts supported on carbon (PdBInc./C) were synthesized; they exhibited considerably improved catalytic activity for the oxidation of formate (HCOO–)....
Publikováno v:
Catalysis Today. 359:28-34
Palladium (Pd) on carbon support, electron-enriched by hydrogen incorporation (Pd-H/C), is synthesized via dimethylamine borane complex at multiple temperatures and used for the oxidation of formate (HCOO−). The electronic effect of H is confirmed
Autor:
Juhee Ahn, Chang Hyun Lee, Wongi Jang, Quynh-Mai Nguyen, Jin Pyo Hwang, Jun Hyun Lim, Sung Yoon Jung
Publikováno v:
ECS Transactions. 98:703-712
Anion exchange membranes (AEMs) have been getting great attraction in the field of alkaline water electrolysis because of their excellent barrier properties to hydrogen and oxygen. Here, we synthesized a perfluorinated AEM ionomer via one-step polyco
Publikováno v:
ECS Transactions. 98:665-672
Saline water electrolysis (SWE) is a representative electrochemical conversion process that produces hydrogen (H2), chlorine (Cl2), and sodium hydroxide (NaOH) at the same time, by applying electricity to saline water. SWE has been suffering from ove
Publikováno v:
Polymers; Volume 13; Issue 23; Pages: 4177
Polymers, Vol 13, Iss 4177, p 4177 (2021)
Polymers
Polymers, Vol 13, Iss 4177, p 4177 (2021)
Polymers
This study reports on an innovative press-loaded blister hybrid system equipped with gas-chromatography (PBS-GC) that is designed to evaluate the mechanical fatigue of two representative types of commercial Nafion membranes under relevant PEMFC opera
Autor:
Yoonmook Kang, Hoyoung Song, Donghwan Kim, Ji Yeon Hyun, Dowon Pyun, Sang Won Lee, Jiyeon Nam, Hae-Seok Lee, Soohyun Bae, Jiryang Kim, Dongjin Choi, Chang Hyun Lee, Hyunju Lee
Publikováno v:
2021 IEEE 48th Photovoltaic Specialists Conference (PVSC).
Monolithic perovskite-silicon tandem solar cells using MoOx hole selective contact silicon cell as bottom structure shows a power conversion efficiency of 5.7%. A thin (15nm in thickness) MoOx contact to n-type Si was used instead of a standard p+ em
Autor:
Hoyoung Song, Sang Won Lee, Soohyun Bae, Chang Hyun Lee, Hae-Seok Lee, Seok Hyun Jeong, Hyunju Lee, Dowon Pyun, Jiyeon Nam, Donghwan Kim, Ji Yeon Hyun, Dongjin Choi, Yoonmook Kang, Jiryang Kim
Publikováno v:
Energies; Volume 14; Issue 11; Pages: 3108
Energies, Vol 14, Iss 3108, p 3108 (2021)
Energies, Vol 14, Iss 3108, p 3108 (2021)
Monolithic perovskite–silicon tandem solar cells with MoOx hole selective contact silicon bottom solar cells show a power conversion efficiency of 8%. A thin 15 nm-thick MoOx contact to n-type Si was used instead of a standard p+ emitter to collect
Publikováno v:
Membranes
Volume 11
Issue 3
Membranes, Vol 11, Iss 219, p 219 (2021)
Volume 11
Issue 3
Membranes, Vol 11, Iss 219, p 219 (2021)
In this research, a series of innovative and stable cross-linked gel polymer reinforced membranes (GPRMs), were successfully prepared and investigated for application in lithium-ion batteries. Herein, a gel directly within the commercial polyethylene
Autor:
Chi-Yeong Ahn, Dong Woog Lee, Ji Hyun Lee, Yong-Hun Cho, Yung-Eun Sung, In Kee Park, Chang Hyun Lee
Publikováno v:
International Journal of Hydrogen Energy. 44:16079-16086
Chlor-alkali (CA) electrolysis is used to generate high-purity (>99.999%) chlorine and hydrogen gas, in addition to caustic soda (NaOH). Despite its usefulness, the electrochemical process consumes a large amount of electric energy. In this study, Ti
Autor:
Jong-Hyun Lee, Chang Hyun Lee
Publikováno v:
Electronic Materials Letters. 15:247-252
The fabrication process of pure Cu films on an alumina substrate using a copper complex paste was evaluated. After vigorous milling for 7 h, copper complexes (copper(II) formate and pure Cu) with an average particle size of 312 nm were formed. A prin