Raman scatteringrotating SO 42-solid sulphate electrolytesRaman spectraRaman spectra of fast ion conducting sulphates (fcc Li 2SO 4 and bcc LiAgSO 4) have been recorded as well as spectra of a sulphate, Na 2SO 4, which has no phase of high conductivity. In case of the fast ion ...
NH3-TPD结构显示,硫酸根引入可以显著提升催化剂表面酸量,WO3物种可能覆盖了部分的硫酸根,导致Pt-3W/SO42--ZrO2催化剂表面酸量降低。 ▲Figure 1 a) The XRD patterns, b) Raman spectra and c) NH3-TPD profiles of the Pt/ZrO2, ...
采用红外(ir)、拉曼(raman)、x-射线衍射(xrd)、程序升温还原(tpr)等方法考察了经硫酸根改性后的金红石(sr)与锐钛矿(sa)的混合比例变化时的负载型催化剂,moo3/tio2(sr+sa),的一些物理化学性质(如活性组分moo3的分散行为、表面酸碱性、氧化还原性)的变化规律。结果表明:对于moo3/tio2(sr+sa)样品,低含量moo...
SO42-与H2O在Au(111)上吸附行为的ECSTM与电化学Raman研究 1992年,Magnussen,O.M.等人利用STM研究了H2SO4水溶液中阴离子在Au(111)表面的吸附行为[1],发现在电位正移到0.75 V 后,电极表面形成√7×√3的有序吸附结构.随后,人们... 张梦,丁松园,黄逸凡,... - 中国化学会学术年会 被引量: 0发表: 2012...
UV Raman spectroscopic study on the phase transformation of ZrO2, Y2O3–ZrO2 and SO42/ZrO2 The phase evolution of zirconia (ZrO2), sulfated zirconia (SO42/ZrO2) and yttrium oxide incorporated zirconia (Y2O3–ZrO2) from the tetrahedral phase to the monoclinic phase was studied using UV Raman spe...
Wavelength dependence of the preresonance Raman cross sections of CH3CN, SO42-, ClO4-, and NO3-.The Raman scattering cross sections of vibrations of SO4-2, NO3-, ClO4-, and CH3CN have been determined between 220–640 nm. The cross sections of the symmetric stretching vibrations of SO4-...
SO42−/Fe2O3 catalysts were prepared by precipitation of FeSO4 and Fe2(SO4)3 and used in catalytic combustion of chlorinated volatile organic compounds (CVOCs). Characterization by XRD, TEM, Raman, FT-IR, XPS, H2 TPR, and NH3 TPD identifies SO42−/Fe2O3 catalysts as the form of he...
Electrical conductivity and dielectric studies of xLi2SO4-30Li2O-(70-x)[0.70P2O5:0.30V2O5], (5 ≤ x ≤ 25 mol%) glasses are carried out over a frequency range from 10 Hz to 10 MHz and in a temperature range of 383 K to 453 K. Addition of Li2O modifies the phosphate netwo...
利用化学共沉淀法将磁性基质与固体酸组装制备磁性纳米固体超强酸催化剂,利用XRD、Raman、TG-DSC、M(o)ssbauer、TEM、HRTEM等手段对样品性质进行表征.结果表明:磁性基... 王君,范美青,杨飘萍,... - 《无机化学学报》 被引量: 34发表: 2007年 镓掺杂SO4^2—/ZrO2的制备及其对正丁烷异构化反应的催化性能 通过沉...
SO 4 2- /M x O y 固体超强酸具有制备简单,热稳定性好,催化活性高,易与产物分离和不腐蚀设备等优点,已成为研究热点之一.本文采用溶剂热表面改性制备了TiO 2 -SiO 2 (TS)复合氧化物,进而制备了固体超强酸SO 4 2- /TiO 2 -SiO 2 (STS).采用FTIR,TG-DSC,XRD,Raman光谱分析,SEM-EDS,BET比表面测定等...