文摘
Bimetallic CuNi nanoparticles on ZrO2 were characterized by FTIR, NAP-XPS and DFT. After reduction, Cu rich surfaces were observed even for Ni rich nanoparticles. Methane decomposition at 425 °C induced Ni segregation on the surface. DFT indicated that adsorbed CHx provided the major driving force. An “ideal” CuNi nanoparticle is suggested.