沉积-沉淀法,deposition-precipitation
deposition-precipitation沉积沉淀法
1.Pd catalysts derived from MgAl hydrotalcite precursors were prepared by three different methods: deposition-precipitation(DP),impregnation(IM),and co-precipitation(CP),which were characterized by ICP,XRD,SEM,TEM,EDS,TPR and surface area measurement.以沉积沉淀法(DP)、浸渍法(IM)和共沉淀法(CP)制备MgAl水滑石衍生氧化物负载钯催化剂,用ICP、XRD、SEM、TEM、EDS、TPR以及比表面测定等手段对催化剂进行了表征。
2.5O 2 (CZ) catalysts were prepared by deposition-precipitation (DP), mixing (MIX) and conventional impregnation (IMP) methods, and the effects of the preparation methods on the three-way catalytic behaviors were investigated.结果表明沉积沉淀法制备的Pd/Ce0 5Zr0 5O2 催化剂 (Pd DP)表现出最强的Pd 载体作用及最优活性 ,原位红外实验发现Pd DP上存在与传统的浸渍法制备的Pd IMP催化剂不同的NO催化还原途径 ,推测Pd 载体间相互作用引起NO还原机理差异 ,进而导致活性差
3)deposition-precipitation method沉积沉淀法
1.The Au/TiO_2 photocatalyst was prepared by the deposition-precipitation method and characterized by transmission electron microscopy, diffuse reflectance spectroscopy, and X-ray photoelectron spectroscopy.采用沉积沉淀法制备了Au/TiO2催化剂,用透射电子显微镜、紫外可见漫反射光谱和X射线光电子能谱进行了表征,结果表明,样品在空气中于200℃处理后,金以金属态Au0的形式沉积在TiO2表面。
2.Using ZnCl2,Al2O3 and Na2CO3 as raw materials,ZnO/Al2O3 composite oxide was prepared by deposition-precipitation method.以ZnCl2、Al2O3和Na2CO3为主要原料,采用沉积沉淀法制得纳米ZnO/Al2O3光催化剂。
3.CuO/ZnO catalysts with different CuO content were prepared by deposition-precipitation method for water-gas shift reaction,using Cu(OH)2 as the precursor of CuO.首次采用沉积沉淀法,以Cu(OH)2为前驱体制备不同CuO负载质量分数的CuO/ZnO水煤气变换(WGS)催化剂,并运用XRD、N2物理吸附和TPR等方法对催化剂进行结构表征。
4)co-deposition-precipitation共沉积沉淀法
1.The preparation procedures and conditions,including co-deposition-precipitation (CP), sequential deposition-precipitation (SP), and deposition-precipitation temperature, had great impacts on the catalytic activity.考察了制备条件(共沉积沉淀法、分步沉积沉淀法以及沉积沉淀温度)对催化活性的影响。
5)precipitation of joint sedimentation共沉淀沉积法
6)modified deposition-precipitation改性沉积-沉淀法
1.The Au/Fe2O3 catalyst was prepared by co-precipitation,deposition-precipitation,and modified deposition-precipitation methods and was characterized by X-ray diffraction,X-ray photoelectron spectroscopy,and transmission electron microscopy.采用共沉淀法、沉积-沉淀法和改性沉积-沉淀法制备了Au/Fe2O3催化剂,运用N2吸附、X射线衍射、X射线光电子能谱和透射电镜等技术对其进行了表征,考察了制备方法对Au/Fe2O3催化剂水煤气变换反应催化活性的影响。
延伸阅读

沉淀法分子式:CAS号:性质:制造固体催化剂的方法之一,即将金属盐水溶液和沉淀剂分别加入搅拌罐中,生成固体沉淀的方法。生成的沉淀须经洗涤、过滤、干燥、煅烧才能制得成品。有将沉淀剂加到金属盐溶液的正加法,及与此相反的倒加法。选择不同的盐和沉淀剂,可以制得不同的催化剂前驱。为了使沉淀均匀,陆续发展了均匀沉淀法和超均匀沉淀法。