CO2 conversion into formic acid with CO-containing hydrogen gas over a heterogenized Ru catalyst
To achieve cost-competitive CO2 hydrogenation processes, it is desirable to utilize gray hydrogen, which typically contains 1–3 mol% CO. However, previously reported catalysts have been severely affected by CO poisoning, leading to metal aggregation, active site leaching, and structural deactivation...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-08-01
|
| Series: | Journal of CO2 Utilization |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2212982025001386 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | To achieve cost-competitive CO2 hydrogenation processes, it is desirable to utilize gray hydrogen, which typically contains 1–3 mol% CO. However, previously reported catalysts have been severely affected by CO poisoning, leading to metal aggregation, active site leaching, and structural deactivation. The CO tolerance test of Ru-MACHO-POMP (porous organometallic polymer) confirmed that the catalyst maintained activity during CO2 hydrogenation to formic acid even under high CO concentrations (12.5 mol%). Through various characterization methods analyzing catalytic active sites, it was found that the catalytic activity was reversibly restored due to reversible binding of CO to Ru active sites, enabling the regeneration of the original active structure. These findings highlight Ru-MACHO-POMP as a sustainable and economically viable catalyst for industrial CO2 hydrogenation processes. |
|---|---|
| ISSN: | 2212-9839 |