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Methane, as a low−carbon and clean energy source, plays a crucial role in ensuring energy security and advancing the realization of the "dual carbon" objectives. The direct catalytic conversion of methane to methanol under mild conditions has emerged as a key research focus in the field of energy catalysis. However, conventional single−metal catalysts often face challenges such as inefficient activation of the methane C—H bond and limited methanol yield. In this work, a Cu—Ru bimetallic modified H−ZSM−5 catalyst was synthesized via an ion exchange method. The influence of metal loading amount, loading sequence, and reaction parameters on catalytic performance was systematically evaluated. Results demonstrate that the co−loaded 1Cu/0.05Ru–ZSM−5 catalyst exhibits optimal activity, achieving a methanol yield of 38633.95 μmol·gcat−1·h−1 at 70 °C within 30 minutes using 0.75 mol·L−1 H2O2、3 MPa CH4, outperforming analogous single−metal catalysts. Characterization analyses reveal that Cu and Ru species are highly dispersed on the zeolite support, with electronic interactions between the two metals enhancing the adsorption and activation of methane molecules, thus contributing to improved catalytic efficiency. This research provides valuable theoretical perspectives for the rational design and development of bimetallic zeolite catalysts, which can facilitate efficient methane conversion under mild reaction conditions.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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