Mg-incorporated sorbent for efficient removal of trace CO from H2 gas
Abstract Removal of trace CO impurities is an essential step in the utilization of Hydrogen as a clean energy source. While various solutions are currently employed to address this challenge, there is an urgent need to improve their efficiency. Here, we show that a bead-structured Mg, Cu, and Ce-bas...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-11-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-023-42871-6 |
| _version_ | 1797636821636612096 |
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| author | Gina Bang Seongmin Jin Hyokyung Kim Kyung-Min Kim Chang-Ha Lee |
| author_facet | Gina Bang Seongmin Jin Hyokyung Kim Kyung-Min Kim Chang-Ha Lee |
| author_sort | Gina Bang |
| collection | DOAJ |
| description | Abstract Removal of trace CO impurities is an essential step in the utilization of Hydrogen as a clean energy source. While various solutions are currently employed to address this challenge, there is an urgent need to improve their efficiency. Here, we show that a bead-structured Mg, Cu, and Ce-based sorbent, Mg13CuCeO x , demonstrates superior removal capacity of trace CO from H2 with high stability. The incorporation of Mg boosts sorption performance by enhancing the porous structure and Cu+ surface area. Remarkably, compared to existing pelletized sorbents, Mg13CuCeO x exhibits 15.5 to 50 times greater equilibrium capacity under pressures below 10 Pa CO and 31 times longer breakthrough time in removing 50 ppm CO in H2. Energy-efficient oxidative regeneration using air at 120 °C allows its stable sorption performance over 20 cycles. Through in-situ DRIFTS analysis, we elucidate the reaction mechanism that Mg augments the surface OH groups, promoting the formation of bicarbonate and formate species. This study highlights the potential of MgCuCeO x sorbents in advancing the hydrogen economy by effectively removing trace CO from H2. |
| first_indexed | 2024-03-11T12:39:38Z |
| format | Article |
| id | doaj.art-67e8bcfbadc04c749713a2458f46a237 |
| institution | Directory Open Access Journal |
| issn | 2041-1723 |
| language | English |
| last_indexed | 2024-03-11T12:39:38Z |
| publishDate | 2023-11-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj.art-67e8bcfbadc04c749713a2458f46a2372023-11-05T12:22:58ZengNature PortfolioNature Communications2041-17232023-11-0114111110.1038/s41467-023-42871-6Mg-incorporated sorbent for efficient removal of trace CO from H2 gasGina Bang0Seongmin Jin1Hyokyung Kim2Kyung-Min Kim3Chang-Ha Lee4Department of Chemical and Biomolecular Engineering, Yonsei UniversityInstitute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL)Department of Chemical and Biomolecular Engineering, Yonsei UniversityDepartment of Biochemical Engineering, Gangneung-Wonju National UniversityDepartment of Chemical and Biomolecular Engineering, Yonsei UniversityAbstract Removal of trace CO impurities is an essential step in the utilization of Hydrogen as a clean energy source. While various solutions are currently employed to address this challenge, there is an urgent need to improve their efficiency. Here, we show that a bead-structured Mg, Cu, and Ce-based sorbent, Mg13CuCeO x , demonstrates superior removal capacity of trace CO from H2 with high stability. The incorporation of Mg boosts sorption performance by enhancing the porous structure and Cu+ surface area. Remarkably, compared to existing pelletized sorbents, Mg13CuCeO x exhibits 15.5 to 50 times greater equilibrium capacity under pressures below 10 Pa CO and 31 times longer breakthrough time in removing 50 ppm CO in H2. Energy-efficient oxidative regeneration using air at 120 °C allows its stable sorption performance over 20 cycles. Through in-situ DRIFTS analysis, we elucidate the reaction mechanism that Mg augments the surface OH groups, promoting the formation of bicarbonate and formate species. This study highlights the potential of MgCuCeO x sorbents in advancing the hydrogen economy by effectively removing trace CO from H2.https://doi.org/10.1038/s41467-023-42871-6 |
| spellingShingle | Gina Bang Seongmin Jin Hyokyung Kim Kyung-Min Kim Chang-Ha Lee Mg-incorporated sorbent for efficient removal of trace CO from H2 gas Nature Communications |
| title | Mg-incorporated sorbent for efficient removal of trace CO from H2 gas |
| title_full | Mg-incorporated sorbent for efficient removal of trace CO from H2 gas |
| title_fullStr | Mg-incorporated sorbent for efficient removal of trace CO from H2 gas |
| title_full_unstemmed | Mg-incorporated sorbent for efficient removal of trace CO from H2 gas |
| title_short | Mg-incorporated sorbent for efficient removal of trace CO from H2 gas |
| title_sort | mg incorporated sorbent for efficient removal of trace co from h2 gas |
| url | https://doi.org/10.1038/s41467-023-42871-6 |
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