论文部分内容阅读
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。
The La-doped BaTiO3 powders have the same size as the undoped BaTiO3 powders, the former is more dispersed. It was found by XPS test that the binding energy of Ni (2p) was smaller in Ni / B than in Ni / A, indicating that Ni in Ni / B had a larger electron density. Similarly, La and Ce doped Ni BaTiO3 catalyst indicates that the incorporation of rare earth elements can make the nickel-based BaTiO3 catalyst surface nickel electron density increased. The Ni content of Ni / A surface is much less and the surface distribution is more scattered. The XPS spectra of BaTiO3 and La-doped BaTiO3 are basically the same.