Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Keonwoo Ko"'
Autor:
Keonwoo Ko, Dongsu Kim, Jiho Min, Bathinapatla Sravani, Yunjin Kim, Sanghyeok Lee, Taejun Sul, Segeun Jang, Namgee Jung
Publikováno v:
Advanced Science, Vol 11, Iss 12, Pp n/a-n/a (2024)
Abstract Polymer electrolyte membrane fuel cells (PEMFCs) suffer from severe performance degradation when operating under harsh conditions such as fuel starvation, shut‐down/start‐up, and open circuit voltage. A fundamental solution to these tech
Externí odkaz:
https://doaj.org/article/40c4358bfc864c1295e8d17ecc870352
Autor:
Khikmatulla Davletbaev, Sourabh S. Chougule, Jiho Min, Keonwoo Ko, Yunjin Kim, Hyeonwoo Choi, Yoonseong Choi, Abhishek A. Chavan, Beomjun Pak, Ikromjon U. Rakhmonov, Namgee Jung
Publikováno v:
Nanomaterials, Vol 14, Iss 11, p 924 (2024)
Polymer electrolyte membrane fuel cells (PEMFCs) have attracted much attention as highly efficient, eco-friendly energy conversion devices. However, carbon-supported Pt (Pt/C) catalysts for PEMFCs still have several problems, such as low long-term st
Externí odkaz:
https://doaj.org/article/0e176328eef04ccf8a0b98e5564c2782
Autor:
Yoonseong Choi, May Zaw Win, Wathone Oo, Jiho Min, Keonwoo Ko, Yunjin Kim, Hyeonwoo Choi, Sourabh S. Chougule, Davletbaev Khikmatulla, Kwang Bok Yi, Namgee Jung
Publikováno v:
Electrochemistry Communications, Vol 157, Iss , Pp 107602- (2023)
Membrane electrode assembly (MEA) is an essential component that mainly determines the performance of proton exchange membrane fuel cells (PEMFCs). In the electrodes of the MEA, ionomers are mixed with Pt-based nanoparticles to transfer protons to th
Externí odkaz:
https://doaj.org/article/d00d4220d32143f5b817f2ab4373bdb6
Autor:
Sourabh S. Chougule, A. Anto Jeffery, Sreya Roy Chowdhury, Jiho Min, Yunjin Kim, Keonwoo Ko, Bathinapatla Sravani, Namgee Jung
Publikováno v:
Carbon Energy, Vol 5, Iss 7, Pp n/a-n/a (2023)
Abstract One of the primary challenges in relation to phosphoric acid fuel cells is catalyst poisoning by phosphate anions that occurs at the interface between metal nanoparticles and the electrolyte. The strong adsorption of phosphate anions on the
Externí odkaz:
https://doaj.org/article/2a9a3f8daf3a430db7038b43e10d105f
Autor:
Hyeonwoo Choi, Yoonseong Choi, Jiho Min, Keonwoo Ko, Yunjin Kim, Sourabh S. Chougule, Davletbaev Khikmatulla, Namgee Jung
Publikováno v:
Nanomaterials, Vol 13, Iss 21, p 2862 (2023)
Proton exchange membrane fuel cells (PEMFCs) face technical issues of performance degradation due to catalyst dissolution and agglomeration in real-world operations. To address these challenges, intensive research has been recently conducted to intro
Externí odkaz:
https://doaj.org/article/b8d47590d84f43abb2a151062b577cff
Autor:
Yunjin Kim, Jiho Min, Keonwoo Ko, Bathinapatla Sravani, Sourabh S. Chougule, Yoonseong Choi, Hyeonwoo Choi, SeoYeong Hong, Namgee Jung
Publikováno v:
Nanomaterials, Vol 12, Iss 21, p 3800 (2022)
The development of non−Pt or carbon−based catalysts for anion exchange membrane fuel cells (AEMFCs) requires identification of the active sites of the catalyst. Since not only metals but also carbon materials exhibit oxygen reduction reaction (OR
Externí odkaz:
https://doaj.org/article/2e43b05bcf1e4548b2ddedbcd2c307ff
Autor:
Jiho Min, Keonwoo Ko, Yunjin Kim, Sreya Roy Chowdhury, A. Anto Jeffery, Sourabh S. Chougule, Namgee Jung
Publikováno v:
Chemical Communications. 59:5681-5684
The microstructure of ultrathin carbon shells coated on metal nanoparticles is effectively regulated by carbon etching and defect healing effects depending on annealing gas atmospheres.
Autor:
Sreya Roy Chowdhury, Apurba Ray, S. S. Chougule, Jiho Min, A. Anto Jeffery, Keonwoo Ko, Yunjin Kim, Sachindranath Das, Namgee Jung
Publikováno v:
ACS Applied Energy Materials. 5:4421-4430
Autor:
Keonwoo Ko, Jiho Min, Yunjin Kim, Min Woo Hong, A. Anto Jeffery, Sourabh S. Chougule, Kwang Bok Yi, Namgee Jung
Publikováno v:
ChemElectroChem. 9
Autor:
Keonwoo Ko, Jiho Min, Yunjin Kim, Min Woo Hong, A. Anto Jeffery, Sourabh S. Chougule, Kwang Bok Yi, Namgee Jung
Publikováno v:
ChemElectroChem. 9