采用N2吸附,热重(TG)分析,X射线粉末衍射(XRD),X射线光电子能谱(XPS),漫反射红外光谱(DRIFTS),拉曼(Raman)光谱,魔角旋转固体核磁共振(27Al MAS NMR)对催化剂的结构和织构性质进行了表征, 用正丁胺电位滴定法测定了催化剂的酸量, 并评价了这些催化剂对月桂酸与甲醇的酯化和三乙酸甘油酯与甲醇的酯交换反应性能...
本工作确定了 Li_2O-B_2O_3-Al_2O_3 系的玻璃的形成范围,测量了 Li_2O-(LiCl)_2-B_2O_3-Al_2O_3 系玻璃的电导率,迁移数,Raman 光谱和红外光谱,动态压缩系数,并进行了... 黄彭年,黄熙怀 - 《硅酸盐学报》 被引量: 25发表: 1983年来源...
本研究利用化学共沉淀法结合电子束烧蚀制备了Er掺杂12CaO·7Al2O3(Cl2A7:Er)陶瓷样品.采用微区拉曼光谱(Raman),X射线衍射(XRD),吸收光谱,发射光谱以及激发光谱等测试手段表征了Cl2A7:Er样品. XRD和Raman测试结果表明已得到具有笼腔结构的Cl2A7多晶陶瓷;从吸收谱中观察到了Er的特征吸收峰. ⑴通过... 查看全部...
Raman cu tine(1982) Ioana Naghi Actress Alo, aterizeaza strabunica!(1981) Iuliana Radu Actress Alo, aterizeaza strabunica!(1981) Aurora Sotropa Actress Tanase Scatiu(1976) Ana Ene Actress Alo, aterizeaza strabunica!(1981) Ion Mingheras ...
1(b,d). The polarized Raman spectra were measured using a confocal Raman microscope (Renishaw inVia) equipped with a × 50 objective, a set of a polarizer, an analyzer and a λ/2 plate, and a cut-on filter. The excitation wavelength was 514 nm (Ar+ ion laser line). The RT ...
利用化学共沉淀法制备了Er掺杂12CaO·7Al<,2>O<,3>(C12A7:Er)样品.采用X射线衍射,微区拉曼光谱以及吸收光谱等测试手段表征C12A7:Er粉体,对其进行了室温和变温的光致发光测量.XRD的测试结果表明已经得到单相的C12A7多晶粉末.Raman测试的结果表明制得的C12A7具有笼腔结构.从吸收的测试结果中,观察到了Er的...
We have measured the pressure-induced change in the lattice dynamics of diaspore, α-AlO(OH), by in situ Raman spectroscopy up to 25 GPa. The spectra are e... GF Fu,SW Bi,YH Yang,... 被引量: 9发表: 1998年 Dynamics of Formation of Self‐Organized Mesoporous AlO(OH)·αH2O Structur...
Raman spectraA Cr–Al–O tandem nanomultilayer composite coating was fabricated by arc ion plating under O2 ambient.Amorphous Cr–Al–Ox nanolayers and Cr–Al–Ox nanolayers containing Cr2Al nanograins alternated with each other in absorbing layers.The coating exhibited outstanding thermal stability ...
氢耗以4,6-二甲基二苯并噻吩与1 甲基萘的混合体系为对象,考察Co Mo/ γ Al 2O 3 催化剂中 n (Co)/ n (Co+Mo)对其催化加氢脱硫反应的加氢脱硫活性,加氢脱硫选择性,芳烃饱和活性以及反应氢耗的影响,并采用H 2 TPR,XRD,Raman,TEM,XPS等表征手段对催化剂进行分析表征.结果表明,当 n (Co)/ n (Co+...
The present work uses a solid-state re... V Janakiraman,M Savio,AN Alodhayb,... - 《Journal of Materials Science Materials in Electronics》 被引量: 0发表: 2025年 加载更多来源期刊 Journal of Materials Chemistry, C. materials for optical and electronic devices 站内活动 ...