采用XPS方法研究了以不同方式引入Ni的Cu Ni/Al2 O3 双金属催化剂的表面结构及不同处理条件对催化剂表面结构的影响。发现催化剂表面存在表面铝酸盐物种 ,且Ni的存在会促进表面铝酸盐物种的生成。催化剂经H2 还原处理或经CO2 加氢反应后均要发生表面重构。Ni的存在会影响表面重构过程从而影响催化剂的活性和选择性 ,在所研究的含Ni催化剂上 ,CO2 加氢反应经历了生成双齿表面吸附中间物的过程。 XPS method was used to investigate the effects of different surface structures and CuNi / Al 2 O 3 bimetallic catalysts on the surface structure of catalysts. Surface aluminate species were found to be present on the catalyst surface, and the presence of Ni promoted the formation of surface aluminate species. The surface reconstruction of the catalyst takes place after H2 reduction or CO2 hydrogenation. The existence of Ni affects the surface reconstruction process and thus the activity and selectivity of the catalyst. On the Ni-containing catalyst studied, the CO2 hydrogenation reaction has undergone the process of generating the bidentate surface adsorption intermediate.