| 학회 |
한국공업화학회 |
| 학술대회 |
2020년 가을 (10/28 ~ 10/30, 광주 김대중컨벤션센터(Kimdaejung Convention Center)) |
| 권호 |
24권 1호 |
| 발표분야 |
포스터-촉매 |
| 제목 |
Altering the Type of Rare-Earth Metals Used to Found Bimetallic Vanadate Phases to Tune their Surface Properties for Catalyzing NOX/NH3 Transformations |
| 초록 |
Rare-earth metal (RM) vanadates are featured by the potential to tailor their surface properties through the alteration of the type of metals/phases or compositions, etc. For this presentation, our primary objective is to tune acidity/redox character provided by Ce1V1O4 phase by substituting half of the Ce elements with Tb, Er, or Yb. This led to the formation of three RM-modified, bimetallic Ce1V1O4 phases (RM0.5Ce0.5V1O4) deployed to selectively catalyze NOX reduction (SCR) and NH3 oxidation (SCO) at a wide temperature range of 200-600 °C. Herein, we corroborate how tunable the properties of the RM0.5Ce0.5V1O4 would be by varying the type of RMs with the use of a host of analytic techniques, all of which can simulate the conditions utilized to perform the SCR or SCO. The surfaces were then examined in real flue gas streams used for the SCR/SCO to further verify that the RM0.5Ce0.5V1O4 outperforms the Ce1V1O4 in various aspects. |
| 저자 |
김동호, 권동욱, Ha Heon Phil, 김종식
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| 소속 |
한국과학기술(연) |
| 키워드 |
rare-earth metal; vanadate; bimetallics; type; NOX reduction; NH3 oxidation
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| E-Mail |
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