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In order to realize the effective elimination of CO in the tail gas of mine trackless rubber-tyred vehicle, the development of high-performance CO elimination reaction catalyst was focused on in this study. Co3O4/CuO/Ni Foam(NF) supported catalyst was prepared by one-step solvothermal synthesis method. Characterization analyses, including X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and specific surface area measurement (BET), were conducted to investigate the effects of synthesis conditions such as synthesis time, synthesis temperature, and growth substrate, as well as physicochemical properties such as catalyst composition and morphological characteristics, on catalytic performance of catalyst. The optimal synthesis conditions and CO elimination performance of catalyst were determined. Hydrogen temperature-programmed reduction (H2-TPR), oxygen temperature-programmed desorption (O2-TPD), and in-situ infrared spectroscopy were employed to explore the intermediate processes of CO elimination catalyzed by the catalyst, revealing the catalytic mechanism of CO elimination by the catalyst. The results show that the optimal synthesis condition of Co3O4/CuO/NF supported catalyst is 140 ℃ for 4 h. Under this condition, the catalyst can completely eliminate CO at the elimination temperature of 150 ℃, and the elimination process of CO by the catalyst follows the Mars-van-Krevelen(MvK) mechanism.
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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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