Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Changhyeok Choi"'
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-11 (2021)
Practical electrochemical N2 reduction reaction is challenged by competing side reactions. Here a combination of DFT and mikrokinetic modelling reveals the potential-dependent competition between electrochemical ammonia production and hydrogen evolut
Externí odkaz:
https://doaj.org/article/f6b88d727b194d44afccd4da3cc86368
Autor:
Zhenqing Zhao, Jongseo Park, Changhyeok Choi, Song Hong, Xiangchao Hui, Hao Zhang, Tsz Woon Benedict Lo, Alex W. Robertson, Zengxiang Lv, Yousung Jung, Zhenyu Sun
Publikováno v:
The Innovation, Vol 3, Iss 1, Pp 100190- (2022)
Demand for ammonia continues to increase to sustain the growing global population. The direct electrochemical N2 reduction reaction (NRR) powered by renewable electricity offers a promising carbon-neutral and sustainable strategy for manufacturing NH
Externí odkaz:
https://doaj.org/article/4d3db234f789472581407a31b3340dd8
Autor:
Jaewan Lee, Changhyeok Choi, Mrinal Kanti Kabiraz, Hionsuck Baik, Byeongyoon Kim, Yousung Jung, Sang-Il Choi, Hyung Suk Oh, Kwangyeol Lee
Publikováno v:
Matter. 4:3585-3604
Summary The layered transition metal oxyhydroxides have received increasing interest owing to the efficient energy conversion performance and material stability during the oxygen evolution reaction (OER). In particular, Fe-doped NiOOH has shown recor
Autor:
Yiqiang Jiang, Yunjin Sung, Changhyeok Choi, Gi Joo Bang, Song Hong, Xinyi Tan, Tai‐Sing Wu, Yun‐Liang Soo, Pei Xiong, Molly Meng‐Jung LI, Leiduan Hao, Yousung Jung, Zhenyu Sun
Publikováno v:
Angewandte Chemie. 134
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-11 (2021)
Nature Communications
Nature Communications
A key challenge to realizing practical electrochemical N2 reduction reaction (NRR) is the decrease in the NRR activity before reaching the mass-transfer limit as overpotential increases. While the hydrogen evolution reaction (HER) has been suggested
Publikováno v:
Chem. 7:1708-1754
Summary NH3 production is dependent on the century-old Haber-Bosch process, which is energy and capital intensive and relies on H2 from steam reforming, hence, contributing to greenhouse gas emissions. Electrochemical NH3 synthesis can be realized by
Autor:
Chansol Kim, Ji‐Yoon Song, Changhyeok Choi, Jin Pil Ha, Wonmoo Lee, Yoon Tae Nam, Dong‐myeong Lee, Gunjoo Kim, Issam Gereige, Woo‐Bin Jung, Hyunjoo Lee, Yousung Jung, Hyeonsu Jeong, Hee‐Tae Jung
Publikováno v:
Advanced materials (Deerfield Beach, Fla.). 34(40)
Ruthenium (Ru) is the most widely used metal as an electrocatalyst for nitrogen (N
Autor:
Changhyeok Choi, Yousung Jung, Hannes Jung, Ahmed Al-Saggaf, Seon Joon Kim, Woo-Bin Jung, Issam Gereige, Kyeong Min Cho, Ju Ye Kim, Hyunjoo Lee, Gukbo Kim, Jinkyu Lim, Woonghyeon Park
Publikováno v:
ACS Catalysis. 11:5658-5665
Achieving high electrochemical conversion of carbon dioxide (CO2) into valuable fuels and chemicals is one of the most promising directions to address environmental and energy challenges. Although ...
Autor:
Kaige Zhu, Xin Li, Junyoung Choi, Changhyeok Choi, Song Hong, Xinyi Tan, Tai‐Sing Wu, Yun‐Liang Soo, Leiduan Hao, Alex W. Robertson, Yousung Jung, Zhenyu Sun
Publikováno v:
Advanced Functional Materials. :2213841
Autor:
Jooyoung Jeong, Jongkook Hwang, Jinkyu Park, Soo-Kil Kim, Seonggyu Lee, Changhyeok Choi, Seongbeen Kim, Hyunwoo Jun, Jong Hyun Jang, Jinwoo Lee, Yousung Jung
Publikováno v:
ACS Nano. 14:4988-4999
To overcome inherent limitations of molybdenum carbide (MoxC) for hydrogen evolution reaction (HER), i.e., low density of active site and nonideal hydrogen binding strength, we report the synthesis of valence-controlled mesoporous MoxC as a highly ef