Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Hyun Suk Na"'
Autor:
Hyun Suk Na, Kyoung Jin Kim, Won Jun Jang, Hyun Seog Roh, Yeol Lim Lee, Jae-Oh Shim, Seon Yong Ahn
Publikováno v:
International Journal of Hydrogen Energy. 45:24726-24737
Enhanced catalytic performance is required to increase the efficiency of hydrogen production from waste-derived synthesis gas via the high-temperature water-gas shift reaction (HT-WGSR). Herein, the effects of barium, zirconium, and neodymium doping
Autor:
Hyun Seog Roh, Jae Oh Shim, Hyun Suk Na, Kyung Won Jeon, Seon Yong Ahn, Yeol Lim Lee, Kyoung Jin Kim
Publikováno v:
Catalysis Today. 352:166-174
To investigate the effect of Cu/CeO2 catalysts preparation methods for low temperature water−gas shift reaction, Cu/CeO2 catalysts were prepared with various impregnation sequences and applied to the water−gas shift reaction at a high gas hourly
Autor:
Hyun Suk Na, Soo Jeong Bae
Publikováno v:
JOURNAL OF THE KOREAN SOCIETY DESIGN CULTURE. 26:141-156
Autor:
Beom Jun Kim, Hyun Suk Na, Seon Yong Ahn, Kyoung Jin Kim, Won Jun Jang, Hyun Seog Roh, Kyung Won Jeon, Jae Oh Shim, Yeol Lim Lee
Publikováno v:
Korean Journal of Chemical Engineering. 37:1130-1136
Ni-MgO catalysts have been widely applied for carbon dioxide reforming (CDR) reaction due to their ability of anti-carbon formation. However, activation of Ni-MgO catalyst consumes considerable energy because of its very low reducibility. In this stu
Autor:
Won Jun Jang, Jae Wan Cho, Jae Oh Shim, Ho Ryong Park, Byong-Hun Jeon, Hyun Suk Na, Hyun Seog Roh, Kyung Won Jeon
Publikováno v:
Sustainable Energy & Fuels. 4:2841-2849
Deoxygenation by transition-metal-based catalysts is employed to produce a biofuel from fatty acids. In this study, the citric acid/CoMo ratio of an unsupported CoMo catalyst prepared by a sol–gel method was increased from 1 to 7 to investigate its
Autor:
Hyun Suk Na, Hak-Min Kim, Sung Chan Nam, Jong Wook Bae, Kyung Won Jeon, Won Jun Jang, Byong-Hun Jeon, Jae Oh Shim, Yeol Lim Lee, Kyoung Jin Kim, Hyun Seog Roh
Publikováno v:
Renewable Energy. 145:2715-2722
The loading amount of Ba promoter in the 15 wt% Co/CeO2 catalyst system was varied from 0 wt% to 3 wt%, and the resulting catalysts were used for the high-temperature water-gas shift (HTS) reaction. The catalysts were prepared by the incipient wetnes
Autor:
Hyun Suk Na, Kyoung Jin Kim, Yeol Lim Lee, Kyubock Lee, Seon Yong Ahn, Anush Mnoyan, Hyun Seog Roh, Jae-Oh Shim
Publikováno v:
Catalysis Science & Technology. 10:6299-6308
In this study, the effects of the catalyst preparation method and CeO2 particle morphology of Pt/CeO2 catalysts for the water-gas shift reaction are compared. CeO2 supports having nanorod and nanocube morphologies were prepared. Over both types of su
Autor:
Hyun Suk Na, Kyung Won Jeon, Byong-Hun Jeon, Yeol Lim Lee, Seon Yong Ahn, Won Jun Jang, Jae Oh Shim, Hyun Seog Roh, Hak-Min Kim
Publikováno v:
Won-Jun Jang
To investigate the effect of precipitation on physico-chemical and catalytic properties of Cu-Zn-Al catalyst, the pH value and injection rate in the precipitation process were systematically changed, and the water-gas shift reaction was carried out.
Autor:
Kyung Won Jeon, Hyun Seog Roh, Yeol Lim Lee, Jae Oh Shim, Hyun Suk Na, Won Jun Jang, Dae-Woon Jeong, Hak-Min Kim
Publikováno v:
Applied Catalysis B: Environmental. 249:72-81
Herein, we have prepared a series of Cr-free Fe-Al-Cu catalysts by the homogeneous one-step co-precipitation method and examined their ability to promote the water gas shift (WGS) reaction and thus facilitate the production of hydrogen from waste-der
Autor:
Byong-Hun Jeon, Kyung Won Jeon, Seon Yong Ahn, Jae Oh Shim, Won Jun Jang, Hyun Suk Na, Hyun Seog Roh
Publikováno v:
Won-Jun Jang
Herein, we investigated the effects of aging time and temperature on the performance of co-precipitation–prepared Cu-Zn-Al catalysts in the low-temperature water-gas shift (LT-WGS) reaction. The highest CO conversion within the employed temperature