氢电弧等离子体法制备的纳米镍铈粒子的催化特性

Catalytic Property of Nano NiCe particles Prepared by Hydrogen Arc Plasma Method

利用氢电弧等离子法制备具有储氢特性纳米镍铈粒子，并在气相苯加氢反应中研究了其催化特性，发现其催化活性与储氢特性及表面层中ＮｉＣｅ合金存在有关，且具有高的选择性和热稳定性。

Nanostructured NiCe particles were prepared by H 2 are plasma method,and the catalytic property of nono NiCe particles in gas phase hydrogenation of benzene was studied.The results showed that the catelytic activity of nano NiCe particles was related to both hydrogen storage property and the existence of NiCe alloys in the surface of nano NiCe particles.The fact that nano NiCe particles possessed high catalytic selectivity and thermal stability was attributed to the special structure of nano particles and the addition of rare earth cerium.