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.
|Journal||IOP Conference Series: Materials Science and Engineering|
|Publication status||Published - 22 Feb 2019|
|Event||2nd International Conference on Current Progress in Functional Materials 2017, ISCPFM 2017 - Bali, Indonesia|
Duration: 8 Nov 2017 → 9 Nov 2017
- hierarchical ZSM-5
- metal oxide catalyst
- partial oxidation