a将图4b样品的XRD衍射图谱与γ-Al2O3的XRD标准衍射卡对照,衍射峰位置完全相同。 Chart 4b the sample XRD diffraction atlas and γ-Al the 2O3 XRD standard diffraction card comparison, the diffraction peak position is completely same.[translate]...
工厂把产品质量放在首位,每批产品都必须通过*认定的质检单位进行质量检测,用 XRD 进行晶型检测,用透射电镜( TEM )进行晶体形貌检测,用粒度检测仪检测粒度及其分布,当各项指标符合标准方可定为产品合格。 &n...进入公司首页> 成立时间:2009-08-14企业经济性质:私营有限责任公司年营业额: ...
供给我一切动力那里将继续是[te),至于为我世界您必须保护。 [translate] a与γ-Al2O3的XRD标准衍射卡对照,衍射峰位置完全相同。 With γ-Al the 2O3 XRD standard diffraction card comparison, the diffraction peak position is completely same. [translate] ...
·g~(-1))>citric acid(164m~2·g~(-1)).In addition,the XRD results confirmed that for all the samples thermally treated at 600 °C,the main phase was gamma-Al2O3;nevertheless,the thermal analyses showed that the gamma-Al2O3 synthesized with the weakest acid was not stable above 600...
采用水解–沉积法, 在不同焙烧温度下制备了cat-500、cat-600、cat-700和cat-800系列NiO/gamma-Al2O3催化剂。XRD和H2-TPR分析表明, 焙烧温度高于700 ℃, 活性组分与载体具有强烈的金属-载体相互作用(SMSI), 具体表现为活性组分前驱体以尖晶石NiAl2O4的形式存在。反应后催化剂的XRD、TG-DTG、TPH等表征结果表明...
Interestingly, platelet- and rod-shaped gamma-Al2O3 which showed exactly the same XRD patterns transformed into different phases upon the high temperature calcinations. Platelet-shaped gamma-Al2O3 transformed into theta-phase while the rod-shaped gamma-Al2O3 transformed into the delta-phase and ...
The support-overlayer adsorptive interactions, generated when solutions of Anderson heteropolyoxomolybdates were supported as a monolayer on γ-Al2O3by means of the equilibrium adsoprtion method, were studied by XRD analysis, DR spectroscopy, electron microscopy (SEM-EDAX) and TPR methods. The ...
XRD, SEM and luminescence characterization have been used to study the prepared samples. The results indicate that the particle size and morphology of the samples depend on the choice of chelating agent. In comparison with pure gamma-Al2O3 sample, the intensity of emission peak at 420 nm of ...
The microstructural and properties of the prepared γ-Al2O3 samples were characterized by X-ray diffraction (XRD), TEM, BET, FT-IR. The static adsorption of γ-Al2O3 for methylene blue was conducted. The results showed that when 20mg (the molar ratio of Al3+ to structure directing ...
Propane propane oxidationThe oxidation of propane on was studied with Pt-xWO3/Al2O3 catalysts was studied ,by varying the concentration of tungsten sublayer. Thermal analysis and XRD in situ showed that the enrichment of tungsten at the surface is associated with the formation of HxWO3 bronze....