Fig.2.XRDpatternsofLaMnO~/SBA 一15catalysts.(1)LaMnOd SBA 一15(1);(2)LaMnOdSBA—l5(3);(3)LaMnO#SBA-15(6);(4) MnOx/SBA 一15r31 减弱,表明SBA.15 载体长程有序度有所下降,或者 说可能已经破坏了其部分晶相结构.但是另一方面, 各LaMnO/SBA 一15 以及MnO/SBA.15 催化剂上都 ...
Nanjing JCNANO Tech Co., Ltd Nanjing JCNANO Co., Ltd Add: Nnajing Road Jianning No. 241 Room 703 Zip: 210015 Tel: +86 25 66602036 58830538 Fax: +86 25 58837848 1 SBA-15表征数据 图1-1 SBA-15的小角X射线衍射图（XRD）[23]。Fig.1-1 XRD pattern of SBA-15 [23].
Mesoporous silica SBA-15 is synthesized in acidic conditions using triblock copolymer Pluronic 123 (EO20PO70EO20) as a pattern and tetraethoxysilane (TEOS) for the source of silica. Once synthesis is complete, the organic template is removed by a variety of methods, including calcination; reflux...
all the samples exhibit a well-resolved XRD pattern with an intense and two weak highly ordered diffraction peaks, which could be assigned to the (100), (110), (200) planes of SBA-15, demonstrating a long-range ordered 2D hexagonal space group(P6mm), similar to traditional hexagonal phase...
样品焙烧 后的 XRD 谱图 Fig .1 X R D pattern s of TsO H-SBA - 15 由图1 可知 ,在 2 在 0 —2 .0( 。)小角范围内有 3 个衍射峰 ,分别归属 于( ioo) 、( 110 ) 、(2oo) 面的 衍射峰。这是 SBA一15 规整的六方形结构所特有 的 ...
XRD pattern (a), FTIR spectrum (b), nitrogen adsorption-desorption isotherms (c), and PSD diagram calculated from the 2D-NLDFT model (d) of the BCFH-SBA-15 sample. Full size image The FTIR of the sample is depicted in Fig.2b. All characteristic absorption bands related to the inorganic...
No characteristic peaks of metal oxide are observed in the large angle XRD pattern by the loading of 5, 10, 15 wt %Pb into SBA-15 indicating metal particles are dispersed in the SiOstructure without accumulating and forming a crystal in a certain part of the framework. But loading of 20 ...
5. The XRD pattern of SBA-15 exhibited a prominent diffraction peak at 2θ = 0.8° that can be indexed as (1 0 0) plane and two other weak peaks observed at 1.6° and 1.8° corresponds to (1 1 0) and (2 0 0) planes respectively. The observed results were consistent with ...
SmallangleXRDpatternsofCS-0(a), 温线属于Ⅳ型,并且伴随H型的回滞线(在相对压 CS-1(),CS-2(c)andCS-3(d) 力0.6～0.8之间),具有典型的一维柱形孔道特征;随着壳聚糖的加入,样品CS-0～CS-3的XRD峰 型逐渐变窄变强,材料的有序度有所提高,这表明壳聚糖在一定程度上提高了介孔氧化硅的有序度. ...
图1 常规纤维状SBA-15的小角XRD图谱和电镜照片Fig.1 Low-angle XRD pattern and electron microscopic images of typical fibrous SBA-15 2 棒状SBA-15的制备进展 2.1 微米/亚微米棒状SBA-15 最早报道的SBA-15形貌常称作纤维(fibers)/麦穗(wheat-like)/面条状(noodle-like),可以看成是棒状颗粒的聚集形态[1,2...