Partial oxidation of methane to methanol over MxOy/ZSM-5 (Mn, Fe, Co, and Ni) hierarchical transition metal oxide catalysts

2nd International Conference on Current Progress in Functional Materials 2017

Nurgita, B.G.^1 ; Nurani, D.A.^1 ; Krisnandi, Y.K.^1

Department of Chemistry, Faculty of Mathematics and Natural Sciences (FMIPA), Universitas Indonesia, Depok

16424, Indonesia^1

关键词: Hierarchical transition;    Hierarchical ZSM-5;    Hierarchical zsm-5 zeolites;    Metal oxide catalysts;    Partial oxidation of methane;    Partial oxidations;    Structure directing agents;    Tetrapropylammonium hydroxide;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/496/1/012032/pdf
DOI  :  10.1088/1757-899X/496/1/012032

来源: IOP

【 摘 要 】

The selective oxidation of methane to methanol is a key challenge in catalysis. The catalytic activities of nickel, cobalt, iron, and manganese oxides supported by hierarchical ZSM-5 zeolites for the partial oxidation of methane to methanol were studied. Hierarchical ZSM-5 was synthesized using a double-template method, in which tetrapropylammonium hydroxide was used as an MF1 structure-directing agent and PDDA-M was used as a mesopore-directing agent. The synthesized hierarchical ZSM-5 was characterized by X-ray diffraction, Fourier-transform infrared spectroscopy, and scanning electron microscopy with energy dispersive spectroscopy. MxOy/ZSM-5 catalysts were prepared using a wet impregnation method and were also extensively characterized. The catalytic test was performed at 423 K in a batch reactor with a CH4. to N2 ratio of 0.5:2 and 0.5 g of MxOy/ZSM-5 catalyst for 2 h. The hierarchical Fe2O3/ZSM-5 catalyst showed the highest yield of methanol, whereas Mn3O4./ZSM-5 tended to produce formic acid.