催化剂的制备与表征.ppt

TPR, TPD, TPO, and TPSR Temperature Programmed Reduction, Desorption, Oxidation, and Surface Reaction (TPR/TPD/TPO/TPSR). 1-H2 and N2 mixed gases; 2-silica gel dryer; 3-deoxidant; 4-mass flow meter; 5-temperature controller; 6-heater; 7-quartz reactor; 8-catalyst sample; 9-TCD; 10-thermocouple; 11-condenser; 12-recorder. H2-TPR profile of Ni(383)/S-1273 after reaction for 100 h H2-TPR profiles of different catalyst samples (a) Ni(383)/S-1273; (b) Ni(383)/S-823; (c) Ni(823)/S-1273; (d) Ni(823)/S-823; (e) Ni(1273)/S-823. NH3-TPD to detect the acid sites on catalyst surface NH3-TPD profiles of Cu–Si and Cu–Mn–Si catalysts. weak acid site. medium acid site. TPO profiles of (a) Ni/γ–Al2O3 and (b) Ni/MgAl2O4 after coking with 20% CH4/Ar at 750oC for 10 min. TPSR profiles of SrTiO3( n(Sr)/n (Ti) = 1.2) catalyst samples prepared by different methods: (a) Nano-SrT iO3, ( b) Conv-SrTiO3. Characterization of Nanosized SrTiO3 Catalyst for Oxidative Coupling of Methane by in Situ ESR and TPSR 催化学报，2008，29(12)：1277-1282. Gas Chromatography (GC) and mass spectrometry (MS) GC is a common type of chromatography used in analytic chemistry for separating and analysing compounds that can be vaporised without decomposition. mobile phase: a carrier gas; stationary phase: a microscopic layer of liquid or polymer. MS is an analytical technique that measures the mass-to-charge ratio of charged particles. In a typical MS procedure: Vaporization; Ionization; The ions are separated according to their mass-to-charge ratio in an analyzer by electromagnetic fields; The ions are detected by a quantitative method; The ion signal is processed into mass spectra. Chromatographic Resolution: Catalytic activity evaluation methods To investigate the catalytic performance of catalysts for expected reactions. The system includes: Catalysts; Reactants; Reactor; A equipment for the analysis of products; (GC, MS, GC-MS, LC, ……) Others. Methods: single factor and orthogonal experim