Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Seungwoo Choi"'
Autor:
Won Il Choi, Seungwoo Choi, Mani Balamurugan, Sunghak Park, Kang Hee Cho, Hongmin Seo, Heonjin Ha, Ki Tae Nam
Publikováno v:
ACS Omega, Vol 8, Iss 38, Pp 35034-35043 (2023)
Externí odkaz:
https://doaj.org/article/bcea584d3b48417cbb2790446def4c4b
Complex Impedance Analysis on Charge Accumulation Step of Mn3O4 Nanoparticles during Water Oxidation
Autor:
Hongmin Seo, Sunghak Park, Kang Hee Cho, Seungwoo Choi, Changwan Ko, Hyacinthe Randriamahazaka, Ki Tae Nam
Publikováno v:
ACS Omega, Vol 6, Iss 28, Pp 18404-18413 (2021)
Externí odkaz:
https://doaj.org/article/0c6cd63848484b83a3d242b8c54bb592
Autor:
Sunghak Park, Kyoungsuk Jin, Hyung Kyu Lim, Jin Kim, Kang Hee Cho, Seungwoo Choi, Hongmin Seo, Moo Young Lee, Yoon Ho Lee, Sangmoon Yoon, Miyoung Kim, Hyungjun Kim, Sun Hee Kim, Ki Tae Nam
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-10 (2020)
Understanding reaction intermediates provides a foundation for active electrocatalysts’ design, but it remains elusive for heterogeneous electrocatalysts. Here, the authors report the spectroscopic characterization of low-spin Mn(IV)-oxo as the act
Externí odkaz:
https://doaj.org/article/2ecb4d1700b341e2ba414daa01062e61
Autor:
Jeong Won Kim, Nam Heon Cho, Ryeong Myeong Kim, Jeong Hyun Han, Seungwoo Choi, Seok Daniel Namgung, Hyeohn Kim, Ki Tae Nam
Publikováno v:
Nano Letters. 22:8181-8188
Chiral plasmonic nanostructures have facilitated a promising method for manipulating the polarization state of light. While a precise structural modification at the nanometer-scale-level could offer chiroptic responses at various wavelength ranges, a
Publikováno v:
The Journal of Physical Chemistry Letters. 13:8344-8351
Precise control over the morphology and facets of Pd nanomaterials has great importance in catalytic and sensing applications. In this study, we synthesized Pd nanoparticles with multiple types of low-Miller-index-faceted morphologies by systematical
Autor:
Mani Balamurugan, Seungwoo Choi, Young In Jo, Jun Ho Jang, Moo Young Lee, Jeong Eun Kim, Kyu Min Lee, Sang Won Im, Ki Tae Nam
Publikováno v:
Angewandte Chemie International Edition. 60:21943-21951
In manufacturing C-N bond-containing compounds, it is important challenge to alternate the conventional methodologies that utilize reactive substrates, toxic reagents and organic solvents. In this study, we developed an electrochemical method to synt
Complex Impedance Analysis on Charge Accumulation Step of Mn3O4 Nanoparticles during Water Oxidation
Autor:
Hyacinthe Randriamahazaka, Sunghak Park, Ki Tae Nam, Hongmin Seo, Changwan Ko, Kang Hee Cho, Seungwoo Choi
Publikováno v:
ACS Omega, Vol 6, Iss 28, Pp 18404-18413 (2021)
The development of efficient water-oxidizing electrocatalysts is a key issue for achieving high performance in the overall water electrolysis technique. However, the complexity of multiple electron transfer processes and large activation energies hav
Autor:
Donghyun Son, Byounggyu Lew, Kwanghee Choi, Yongsu Baek, Seungwoo Choi, Beomjun Shin, Sungjoo Ha, Buru Chang
Social media platforms struggle to protect users from harmful content through content moderation. These platforms have recently leveraged machine learning models to cope with the vast amount of user-generated content daily. Since moderation policies
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::98d154a5cf918f37d197abdb2b6c33cf
http://arxiv.org/abs/2208.07522
http://arxiv.org/abs/2208.07522
Autor:
Ki Tae Nam, Seungwoo Choi, In-Ho Jung, Min-Kyung Kim, Kyung-Woo Yi, Ho-Gil Choi, Juyoung Jang
Publikováno v:
Ironmaking & Steelmaking. 48:1030-1037
Molten oxide electrolysis can be used to reduce the carbon dioxide emissions from ironmaking. In this paper, we electrochemically decompose iron oxide (Fe2O3) into iron (Fe) and oxygen (O2) using b...
Autor:
Moo Young Lee, Kyoungsuk Jin, Ki Tae Nam, Miyoung Kim, Yoon Ho Lee, Hyungjun Kim, Hongmin Seo, Hyung-Kyu Lim, Kang Hee Cho, Jin Kim, Sangmoon Yoon, Sun Hee Kim, Seungwoo Choi, Sunghak Park
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-10 (2020)
High-valent metal-oxo moieties have been implicated as key intermediates preceding various oxidation processes. The critical O–O bond formation step in the Kok cycle that is presumed to generate molecular oxygen occurs through the high-valent Mn-ox