CO_2 REFORMING OF METHANE TO SYNGAS OVER Ni-MODIFIED HEXAALUMINATE OXIDES BaNi_yAl_12-Yo_19-δ

摘要

Ni-modified hexaaluminate oxides, BaNi_yAl_12-yO_19-δ(y=0.3,0.6, 0.9 and 1.0), were prepared and charactrized using XRD, XPS, TPR and TGA techniques. The series of hexaaluminate oxides BaNi_yAl_12-yO_19-δ Exhibited the same crystal structure and similar reduction stability. A pure Hexaaluminate oxide BaNi_yAl_12-yO_19-δphase could from only when y value Is at o