【摘要】 采用Auger电子能谱 (AES)、X射线光电子能谱 (XPS)、扫描Auger探针 (SAM)及X射线衍射 (XRD)等分析手段 ,研究了活化非晶Fe80 Zr1 2 B8合金催化剂的表面结构。实验结果表明 :非晶Fe80 Zr1 2 B8合金条带原位活化后 ,条带比表面积从原始条带的 0 .11m2 g增加到了 2 .6 8m2 g ;条带体结构发生了晶化 ;活化催化剂表面形成了一层多孔粉粒 ,粉粒内部微观结构由α Fe微晶 ,ZrO2 、ZrN及B的氧化物组成。更多还原

【Abstract】 The Surface structure of activated amorphous Fe 80 Zr 12 B 8 alloy catalyst has been studied by means of Auger electron spectroscopy (AES), X ray photoelectron spectroscopy (XPS), Scanning Auger microprobe (SAM) and X ray diffraction(XRD).The experimental results show that the BET surface area of alloy ribbon has increased from 0.11 m 2/g of as received ribbon to 2.68m 2/g of activated catalyst, and the crystallization of bulk structure has taken place after in situ activation.Finally,the surface of activated catalyst is covered by a layer porous particle which consist of microcrystalline α-Fe?ZrO 2?ZrN and oxides of Boron.更多还原