Zobrazeno 1 - 10
of 235
pro vyhledávání: '"Ja Hun Kwak"'
Autor:
Suochang Xu, Nicholas R. Jaegers, Wenda Hu, Ja Hun Kwak, Xinhe Bao, Junming Sun, Yong Wang, Jian Zhi Hu
Publikováno v:
ACS Omega, Vol 6, Iss 5, Pp 4090-4099 (2021)
Externí odkaz:
https://doaj.org/article/56246c6d001d4e69a8516f6f1185ef18
Autor:
Dong Gun Oh, Hristiyan A. Aleksandrov, Haneul Kim, Iskra Z. Koleva, Konstantin Khivantsev, Georgi N. Vayssilov, Ja Hun Kwak
Publikováno v:
Molecules, Vol 28, Iss 4, p 1957 (2023)
Pd-based catalysts are widely used in the oxidation of CH4 and have a significant impact on global warming. However, understanding their active sites remains controversial, because interconversion between Pd and PdO occurs consecutively during the re
Externí odkaz:
https://doaj.org/article/a02947385bd84ec0a1139dc3165c4d0f
Autor:
Je Min Yu, Jungho Lee, Yoon Seo Kim, Jaejung Song, Jiyeon Oh, Sang Myeon Lee, Mingyu Jeong, Yongseon Kim, Ja Hun Kwak, Seungho Cho, Changduk Yang, Ji-Wook Jang
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-9 (2020)
While organic semiconductors may be useful in photoelectrochemical water-splitting materials, they show low stability in water. Here, the authors report high-performance and stable organic-semiconductor-based photoanodes passivated using nickel foils
Externí odkaz:
https://doaj.org/article/89045c0f53cc4cbdb34129660267690e
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-8 (2017)
Self-assembly is a strategy for making metal-organic materials but controlling the interior of metal-organic crystals remains challenging. Here, the authors report a sequential self-assembly process for synthesizing various interior morphologies of m
Externí odkaz:
https://doaj.org/article/9df231dc9a954891ba4a4032e3d86278
Publikováno v:
The Journal of Physical Chemistry C. 127:7142-7150
Autor:
Konstantin Khivantsev, Nicholas R. Jaegers, Libor Kovarik, Miroslaw A. Derewinski, Ja-Hun Kwak, Janos Szanyi
Publikováno v:
Molecules, Vol 27, Iss 7, p 2352 (2022)
Steamed zeolites exhibit improved catalytic properties for hydrocarbon activation (alkane cracking and dehydrogenation). The nature of this practically important phenomenon has remained a mystery for the last six decades and was suggested to be relat
Externí odkaz:
https://doaj.org/article/6cd03aae705f49a79230b48507e92617
Autor:
Ricardo A. Peralta, Michael T. Huxley, Pengbo Lyu, Mariana L. Díaz-Ramírez, Sun Ho Park, Juan L. Obeso, Carolina Leyva, Cheol Yeong Heo, Sejin Jang, Ja Hun Kwak, Guillaume Maurin, Ilich A. Ibarra, Nak Cheon Jeong
Publikováno v:
ACS Applied Materials & Interfaces. 15:1410-1417
Metal-organic frameworks have developed into a formidable heterogeneous catalysis platform in recent years. It is well established that thermolysis of coordinated solvents from MOF nodes can render highly reactive, coordinatively unsaturated metal co
The structure of gamma-Al2O3 remains largely undetermined despite decades of research. This is due to the high degree of disorder, which poses significant challenges for structural analysis using conventional crystallographic approaches. Herein, we s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::de62dde446e0696d03f961f3c928078a
https://doi.org/10.26434/chemrxiv-2023-dcch9
https://doi.org/10.26434/chemrxiv-2023-dcch9
Autor:
Ja-Hun Kwak, Nicholas Jaegers, Janos Szanyi, Georgi Vayssilov, Hristiyan Aleksandrov, Konstantin Khivantsev
We show both experimentally and theoretically that CO can be activated (protonated) by Bronsted acid sites to form the super-electrophilic HCO+ cation in H-zeolites such as mordenite. This mode of activation of carbon monoxide is novel for solid mate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b38834d655668fdd4a4adb851223518
https://doi.org/10.26434/chemrxiv-2021-lpb2g-v2
https://doi.org/10.26434/chemrxiv-2021-lpb2g-v2
Autor:
Myohwa Ko, Yongseon Kim, Jinwoo Woo, Boreum Lee, Rashmi Mehrotra, Pankaj Sharma, Jinjong Kim, Seon Woo Hwang, Hu Young Jeong, Hankwon Lim, Sang Hoon Joo, Ji-Wook Jang, Ja Hun Kwak
Publikováno v:
Nature Catalysis. 5:37-44