【摘要】 La掺杂的BaTiO3粉体与未掺杂BaTiO3粉体颗粒大小相仿,前者更为分散。通过XPS试验发现,Ni(2p)的结合能在Ni/B中比在Ni/A中为小,说明Ni/B中的Ni具有更大的电子密度;同样,La、Ce掺杂的镍基BaTiO3催化剂表明稀土元素的掺入能使镍基BaTiO3催化剂表面的镍电子密度增大。Ni/A表面的Ni含量少得多,表面分布较散。BaTiO3和La掺杂BaTiO3的XPS能谱基本相同。更多还原

【Abstract】 La-doped BaTiO₃ powder size is similar to that of undoped BaTiO₃ and more dispersed than the latter.Ni（2p） binding energy is smaller on Ni/B than Ni/A,it is explained that Ni is bigger electron density on Ni/B.RE（La,Ce）-doped Ni-based BaTiO₃ catalysts indicate RE-doped catalysts also make Ni electron density bigger on the Ni-based BaTiO₃ catalyst surface than undoped BaTiO₃.Surface Ni content is more less,Ni surface distributing is more dispersed on Ni/A than on Ni/B,spectra of BaTiO₃ and La-BaTiO₃ are the same basically.更多还原