【摘要】 以φ3 mm Al2O3作为主载体,采用浸渍与焙烧工艺,制备水煤气低温变换催化剂:CuO+ZnO/CeO2/Al2O3.利用X射线衍射(XRD)、扫描电子显微镜(SEM)、Raman散射光谱分别对催化剂的化学组成、表面形貌以及表面元素键合状态进行表征;对催化剂的水煤气变换反应(WGSR)活性进行测试.在对催化剂表面形貌进行数据挖掘的基础上,利用复杂网络方法对催化剂的表面形貌进行网络建模,并对其网络拓扑参数和同步性进行了计算.计算结果表明,CuO+ZnO/CeO2/Al2O3表面形貌网络度分布具有幂律分布特征;在催化WGSR以后,催化剂表面形貌网络同步性有所增强.更多还原

【Abstract】 The supported catalyst of water gas shift reaction(WGSR) at low temperature,CuO+ZnO/CeO2 / Al2O3,was prepared using spherical alumina(3mm) and the incipient wetness technique for impregnation.The X-ray diffraction(XRD),Raman scattering spectroscope and scanning electron microscope(SEM) were employed to characterize the chemical composition,bonded state of surface elements and surface morphology of CuO+ZnO/CeO2/Al2O3.The catalytic activity of CuO+ZnO/CeO2/Al2O3 in WGSR at low temperature was measured.On the basis of the network constructed from the surface morphology of CuO+ZnO/CeO2/Al2O3,the topological structure parameters and network synchronism were calculated.Results of the calculations show that the node connectivity of the surface morphology network follow a power-law distribution,and that the network synchronism is increased after CuO+ZnO/CeO2/Al2O3 catalyzes WGSR at low temperature.更多还原