The XRD peaks of unmodified SBA-15 and SBA-15@Schiff‐base@Fe(III) are shown in Fig. 7. The sample of SBA-15 exhibited only a broad peak at 2θ = 22.9° as the (100) reflection, which is a characteristic signal of the amorphous nature of silica36. The other two weak diffract...
考察了研磨对经不同脱模方法得到的SBA-15介孔分子筛的结构的影响.用N2吸附-脱附、XRD、FT-IR、29Si CP MAS NMR等手段对样品的结构进行了表征,发现研磨对SBA-15的`孔结构有一定的破坏作用,导致样品的长程有序性降低,表面积、孔容下降,孔径减小.同时,研磨增加了孔壁中的结构缺陷,机械压力使孔壁发生了收缩,壁中...
sulfurizationcatalyticperformancewasinvestigated. respectively. 第 12期 赵鹏飞等 :A1一NiP/SBA一15催化刹 的制备 、表征及加氢脱硫催化性能 2275 1.2 Catalystcharacterization (Group)Co,Ltd)equippedwithanFIDdetectoranda XRD patterns of passivated A1--Ni2P/SBA—·15 capillarycolumn fHPPONA,50mx0.20lllmx0.50...
SBA-15 shows intense diffraction peak of (100) at 2θ ? 0.991 and two secondary patterns corresponding to (110) and (200) re?ections about 2θ ? 21 which are indicative of the hexagonal symmetry and textural uniformity of the mesopore. The low-angle XRD patterns of SBA-15-NH2, SBA-...
sba-15 分子筛
AbstractAseriesofthePt-Sn/SBA-15catalystswerepreparedandtheirpropertiescharacterizedbyusingX-ray powderdiffraction(XRD),N 2 adsorption-desorption,highresolutiontransmissionelectronmicroscope,X-raypho- toelectronspectroscopy(XPS)andH 2 -temperatureprogrammedreduction.Theirperformancesinlongchainalkane ...
Structure characterization of BCFH-SBA-15 Figure2aillustrates the XRD pattern of BCFH-SBA-15, which is characterized by a distinct diffraction peak at 2θ = 0.9° and two less prominent peaks at 1.5° and 1.7°, attributed to (1 0 0), (1 1 0) and (2 0 0) reflections, respect...
bond.TheX—raydiffraction(XRD)ofAu—SBA~15showedthatthe~mpleshadaveryintenselow—an— glepeak.indicatingthepresenceofuniformly—sizedporesonthemateria1.TheAu—SBA一15zeolites featuredhighlyorderedtwo—dimension(2D)hexagonal(P6nun)mesoporousstructure.Thecatalysts ...
Figure1XRDpatternsofNi/SBA15 catalystspreparedwithnickelnitrateand nickelacetate,andactivatedinairandhydrogenatmospheres Figure2showstheH 2 TPDprofilesoftheNi/ SBA15catalystspreparedwithnickelnitrateand nickelacetate.FortheNi/SBA15catalystsprepared withnickelnitrate,thepeakareaofNi/SBA15 (NH)activatedinhydrogenis...
However, the indicating peak pattern demon- strates that the inside of the mesoporous channels was B igdelo et al. BMC Chemistry (2022) 16:99 Page 5 of 11 Fig. 4 Elemental mapping analysis of SBA-15-Se)2 Fig. 5 XRD patterns of the SBA-15-Se)2 grafted mainly with ...