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Author |
Hao, Y.; Li, S.; Fang, W.; Wang, X.; Cui, Z.; Bal, K.M.; Gerrits, N.; Guo, H.; Neyts, E.C.; Bogaerts, A.; Yi, Y. |
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Title |
Plasma‐catalytic one‐step steam reforming of methane to methanol: Revealing the catalytic cycle on Cu/mordenite |
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A1 Journal Article |
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Year  |
2025 |
Publication |
AIChE Journal |
Abbreviated Journal |
AIChE Journal |
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Volume |
71 |
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1 |
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Keywords |
A1 Journal Article; anaerobic oxidation, methane conversion, methanol production, plasma catalysis; Plasma, laser ablation and surface modeling Antwerp (PLASMANT) ; |
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Abstract |
Direct CH<sub>4</sub>to CH<sub>3</sub>OH conversion is a long‐standing grand challenge in catalysis. We present one‐step steam reforming of methane to methanol (OSRMtM) by combining an atmospheric pressure CH<sub>4</sub>/H<sub>2</sub>O/Ar plasma with a Cu/Mordenite (Cu/MOR) catalyst at 170°C, achieving 77% CH<sub>3</sub>OH selectivity with 3.0% CH<sub>4</sub>conversion. Catalyst characterization and plasma diagnostics, as well as D<sub>2</sub>O and H<sub>2</sub><sup>18</sup>O‐labeled isotope tracer experiments reveal that the excellent reaction performance is attributed to Cu‐O active sites confined by MOR zeolite. During plasma‐catalytic OSRMtM, both CH<sub>4</sub>and H<sub>2</sub>O are activated in the plasma and dissociated to produce radicals (CH<sub>3</sub>, OH, and H). These radicals drive the redox process between Cu<sup>2+</sup>and Cu<sup>+</sup>, playing an important role in plasma‐catalytic OSRMtM. Although a gradual reduction of Cu<sup>2+</sup>to Cu<sup>+</sup>leads to slow deactivation, the catalytic performance can be completely recovered through simple calcination, which enables a continuous plasma‐catalytic OSRMtM process using a fluidized‐bed reactor. |
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Publication Date |
2024-08-30 |
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ISSN |
0001-1541 |
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Impact Factor |
3.7 |
Times cited |
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Open Access |
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Notes |
National Natural Science Foundation of China, 22272015 ; China Scholarship Council, 202006060029 ; |
Approved |
Most recent IF: 3.7; 2025 IF: 2.836 |
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Call Number |
PLASMANT @ plasmant @ |
Serial |
9346 |
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