Influences of pore size on production of 2-methylpyrazine over bifunctional CuO/ZnO/meso-SiO2 catalysts |
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| Authors: | Yuanyuan Zhang Fangli Jing Menglin Ma Wei Chu Shizhong Luo |
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| Institution: | 1. School of Physics and Chemistry, Xihua University, No. 999 Tuqiao Jinzhou Road, Chengdu, 610039, China
2. Department of Chemical Engineering, Sichuan University, No. 24 South Sect. 1, Yihuan Road, Chengdu, 610065, China
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| Abstract: | Controllable crystallite size of CuO in CuO/ZnO/meso-SiO2 catalysts was successfully realized by impregnation method using mesoporous silica with different pore diameters as support. Characterization techniques such as N2 adsorption/desorption, X-ray diffraction, H2 temperature-programmed reduction, and potentiometric titration were employed to investigate the influences of pore size on textural properties, crystalline phases, reducibility, and acidity. Catalytic evaluation of synthesis of 2-methylpyrazine was carried out at 380 °C under atmospheric conditions. The best catalytic performance was achieved over catalyst CZ/S1 supported on the carrier with smallest pore size. |
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