Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Dae-Sik Yun"'
Autor:
Hyo-Sik Kim, Hyun-Ji Kim, Ji-Hyeon Kim, Jin-Ho Kim, Suk-Hwan Kang, Jae-Hong Ryu, No-Kuk Park, Dae-Sik Yun, Jong-Wook Bae
Publikováno v:
Catalysts, Vol 12, Iss 1, p 63 (2022)
Volatile organic compounds (VOCs) are toxic and are considered the most important sources for the formation of photochemical smog, secondary organic aerosols (SOAs), and ozone. These can also greatly affect the environment and human health. For this
Externí odkaz:
https://doaj.org/article/3d60813bc52b4a11a989a4c7374e75e1
Autor:
Dae Sik Yun, Jaegyeom Kim, Seung-Joo Kim, Jong-Heun Lee, Jong-Nam Kim, Hyung Chul Yoon, Ji Haeng Yu, Minseok Kwak, Hana Yoon, Younghyun Cho, Chung-Yul Yoo
Publikováno v:
Energies, Vol 11, Iss 11, p 3083 (2018)
For practical utilization of proton-conducting ceramic fuel cells and electrolyzers, it is essential to lower the sintering temperature and processing time of BaZrO3-based proton conductors. We investigated the effect of sintering temperature and tim
Externí odkaz:
https://doaj.org/article/03035139613a4c5e876061c3e355113c
Autor:
Moon-Hee Han, Jong-Hyun Park, Sang Hyun Park, Hana Yoon, Dae Sik Yun, Hyung Chul Yoon, Jong-Nam Kim, C.W. Jeong, Chung-Yul Yoo, Eun-Young Jeong
Publikováno v:
Korean Journal of Chemical Engineering. 35:1620-1625
With a 17.6 wt% hydrogen content, ammonia is a non-carbon-emitting, easy to store and transport, carrier of hydrogen energy. In this study, an anion-exchange-membrane-based (AEM-based) electrochemical cell was used to electrochemically synthesize amm
Autor:
June Hyuk Lee, Hana Yoon, Ji Haeng Yu, Jong-Hyun Park, Jong Hoon Joo, Kyong Sik Yun, Chung-Yul Yoo, Lee Young A, Dae Sik Yun
Publikováno v:
The Journal of Physical Chemistry C. 120:22248-22256
SrCo0.9Nb0.1O3−δ (SCN) has been investigated for oxygen transport membrane and solid oxide fuel cell applications as it is more stable than the state-of-the-art Ba0.5Sr0.5Co0.8Fe0.2O3−δ (BSCF) material. Here, the crystal structure and transport
Autor:
Hyung Chul Yoon, Ji Haeng Yu, Yong-Cheol Kang, Dae Sik Yun, Minseok Kwak, Hana Yoon, Jong-Nam Kim, Chung-Yul Yoo, Juyun Park
Publikováno v:
Journal of Alloys and Compounds. 676:407-413
In this study, Co3O4 directly grown on a porous nickel substrate was successfully prepared and characterised as a potential candidate for pseudocapacitor applications. The electrochemical properties of Co3O4 were adversely affected by the sluggish ch
Autor:
Haein Park, Sun-Young Park, Ji Haeng Yu, Jong Hoon Joo, Chung-Yul Yoo, Minseok Kwak, Dae Sik Yun, Jaeku Park
Publikováno v:
Electrocatalysis. 7:280-286
The electrochemical properties of La0.6Sr0.4Co0.2Fe0.8O3-δ-based cathodes are studied as model electrodes for proton ceramic fuel cells. The electrochemical performance of symmetric cells with porous cathodes (La0.6Sr0.4Co0.2Fe0.8O3-δ, La0.6Sr0.4Co
Publikováno v:
Journal of Power Sources. 284:245-251
Electrochemical ammonia synthesis from steam and nitrogen has been systematically investigated using a proton-conducting electrolyte supported cell based on 20 mol% yttrium doped barium zirconate (BaZr 0.8 Y 0.2 O 3−δ ) in a temperature range of 4
Publikováno v:
Journal of Alloys and Compounds. 621:263-267
20 mol% yttrium doped barium zirconate, BaZr0.8Y0.2O3−δ (BZY), a proton-conducting electrolyte with 2 wt.% NiO, has been successfully prepared by a solid state reaction and sintered at 1450 °C for 5 h. The pellets sintered under O2 show relative
Autor:
Jong Heun Lee, Jaegyeom Kim, Hyung Chul Yoon, Hana Yoon, Seung-Joo Kim, Jong-Nam Kim, Dae Sik Yun, Minseok Kwak, Chung-Yul Yoo, Ji Haeng Yu, Younghyun Cho
Publikováno v:
Energies
Volume 11
Issue 11
Energies, Vol 11, Iss 11, p 3083 (2018)
Volume 11
Issue 11
Energies, Vol 11, Iss 11, p 3083 (2018)
For practical utilization of proton-conducting ceramic fuel cells and electrolyzers, it is essential to lower the sintering temperature and processing time of BaZrO3-based proton conductors. We investigated the effect of sintering temperature and tim
Publikováno v:
Journal of the Korean Magnetics Society. 15:17-20
The influence of partial pressure on saturation mgnetization, coercivity, anisotropy field and effective permeability (over 1GHz) of as-deposited Co-Fe-Al-O thin films, which were fabricated by RF magnetron reactive sputtering method, were investigat