Enhanced Carbon Dioxide Decomposition Using Activated SrFeO3-delta
- Authors
- Sim, Jaeyong; Kim, Sang-Hyeok; Kim, Jin-Yong; Lee, Ki Bong; Nam, Sung-Chan; Park, Chan Young
- Issue Date
- 11월-2020
- Publisher
- MDPI
- Keywords
- greenhouse gas; climate change; CO2 decomposition; CO2 utilization; SrFeO3& #8722 x
- Citation
- CATALYSTS, v.10, no.11
- Indexed
- SCIE
SCOPUS
- Journal Title
- CATALYSTS
- Volume
- 10
- Number
- 11
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/51943
- DOI
- 10.3390/catal10111278
- ISSN
- 2073-4344
- Abstract
- Today, climate change caused by global warming has become a worldwide problem with increasing greenhouse gas (GHG) emissions. Carbon capture and storage technologies have been developed to capture carbon dioxide (CO2); however, CO2 storage and utilization technologies are relatively less developed. In this light, we have reported efficient CO2 decomposition results using a nonperovskite metal oxide, SrFeCo0.5Ox, in a continuous-flow system. In this study, we report enhanced efficiency, reliability under isothermal conditions, and catalytic reproducibility through cyclic tests using SrFeO3-delta. This ferrite needs an activation process, and 3.5 vol% H-2/N-2 was used in this experiment. Activated oxygen-deficient SrFeO3-delta can decompose CO2 into carbon monoxide (CO) and carbon (C). Although SrFeO3-delta is a well-known material in different fields, no studies have reported its use in CO2 decomposition applications. The efficiency of CO2 decomposition using SrFeO3-delta reached >= 90%, and decomposition (>= 80%) lasted for approximately 170 min. We also describe isothermal and cyclic experimental data for realizing commercial applications. We expect that these results will contribute to the mitigation of GHG emissions.
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Collections - College of Engineering > Department of Chemical and Biological Engineering > 1. Journal Articles
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