Synthesis and application of magnetic catalyst for hydrogenation reaction

 A novel method to growing Ni nanowires under a magnetic field was developed. Ni nanowires were formed with increasing of the magnetic field. XRD was employed to characteristic Ni crytal structure. The diameter of Ni... [ view full abstract ]

 A novel method to growing Ni nanowires under a magnetic field was developed. Ni nanowires were formed with increasing of the magnetic field. XRD was employed to characteristic Ni crytal structure. The diameter of Ni nanowires was in the range of 100 nm to 150 nm from SEM observation. Interesting, the shape of Ni nanowire would be changed from the particles-assembled attachment to rod-liked growth as the reduction rate was descended in low reductant concentration. Furthermore, in an unique and special magnetic field, nickel particles can be self-assembled to form balls shape. When those Ni balls was applied as the catalyst for the hydrogention of carbon dioxide, over 90% of carbon dioxide could be converted to methane in this system. In addition, C1~C3 alkanes, which are the important fuel gases, would be formed from the hydrogeneration of CO/CO2 mixture gas, as the Ni balls were used as catalyst under atmospheric pressure and 170~200oC. Restated, high performance Ni catalyst, which can be applied on the simple carbon cycle, was developed by our laboratory. Those low energy consumption system maybe can solve the global warm problem in future.