Influences of Ni Content on the Microstructural and Catalytic Properties of Perovskite LaNixCr1−xO3 for Dry Reforming of Methane

Perovskite oxides were widely used as precursors for developing metal-support type catalysts. It is attractive to explore the catalytic properties of themselves dry reforming methane (DRM). We synthesized LaNixCr1−xO3 (x = 0.05–0.5) samples in powder form using sol-gel self-combustion method. Ni atoms are successfully doped into LaCrO3 perovskite lattice. The grains polycrystalline, and crystallite size decreases with increasing content. demonstrated that perovskites show intrinsically activity DRM reactions. Reducing content helpful reduce carbon deposition resulting from metal nanoparticles usually coexist highly active oxides. CH4 conversion over LaNi0.1Cr0.9O3 sample reaches approximately 84% at 750 °C, negligible.