XRD数据(图3b)表明,在温度渐变开始时,3%的Cr2O3/Fe2O3样品中存在α-Fe2O3,而Fe2O3样品中没有α-Fe2O3(图3a)。虽然α-Fe2O3的XRD峰没有存在于WGS反应中间和之后,然而EXAFS数据表明,低维组件的α-Fe2O3或其他八面体的Fe配位化合物(例如,γ-FeOOH)可能出现在整个温度循环的Cr2O3/Fe2O3系统。...
Raman spectroscopy of alpha-FeOOH (goethite) near antiferromagnetic to paramagnetic phase transitiondoi:10.1063/5.0006352B. S. StefanovJ. RosellM. V. AbrashevN. D. TodorovV. G. IvanovV. Skumryev
in-situ raman spectroscopy of α-and γ-feooh during cathodic load K Hedenstedt,J Bckstrm,E Ahlberg 被引量: 0发表: 2018年 Electrode reactions at modified surfaces dependent on the reaction site: γ-FeOOH as example Other reactions, such as charging of the electrode capacity, the anodic ...
Two iron oxyhydroxides, α- and γ-FeOOH, were electrodeposited on titanium substrate and their reduction processes were followed in detail with in-situ Raman spectroscopy, using low incident laser power to avoid sample damaging. Polarization to negative potentials show two reduction peaks for γ-...
spectrum to measure the carbon steel As and low-alloy steel 10CrMoAl of the atmosphere corrosion rusty layer samples from Qingdao,then,we analyze the distinct peat and obtain the main component rust phase of rusty layer,the result have been following: α-Fe2O3,γ-FeOOH,α-FeOOH,δ-FeOOH....
本文运用激光拉曼光谱分析方法,对碳钢A3、低合金钢10CrMoAl经青岛大气腐蚀的锈层样品进行了比较测试,由实验结果分析得出锈层主要组成物相为α-Fe2O3,γ-FeOOH,α-FeOOH,δ-FeOOH,激光拉曼光谱分析为大气腐蚀锈层物相的研究提供有力的实验依据。 3. A few pieces of green synthetic jadeite jade stone are studi...
Raman spectra also corroborated AFM data, wherein three corrosion products were identified: goethite (α-Fe(OOH), magnetite (Fe3O4), and hematite (Fe2O3). The correlation between the naphthenic corrosion and the TAN values was evaluated from negative ion mode electrospray ionization Fourier ...
It has been shown on six dated samples that the main phase is goethite (α-FeOOH). Lepidocrocite and akaganeite (γ-FeOOH and β-FeOOH) occur locally in the corroded products, often correlated with cracks. A less crystallised phase, a hydrated oxy-hydroxide, has been identified abundantly ...
Hematite (-Fe2O3), magnetite (Fe3O4), wüstite (FeO), maghemite (-Fe2O3), goethite (-FeOOH), lepidocrocite (-FeOOH) and δ-FeOOH were studied by Raman microscopy. Such compounds have already been studied by Raman spectroscopy, but there are some disagreements in the reported data. ...
本文运用激光拉曼光谱分析方法,对碳钢A3、低合金钢10CrMoAl经青岛大气腐蚀的锈层样品进行了比较测试,由实验结果分析得出锈层主要组成物相为α-Fe2O3,γ-FeOOH,α-FeOOH,δ-FeOOH,激光拉曼光谱分析为大气腐蚀锈层物相的研究提供有力的实验依据。 3. A few pieces of green synthetic jadeite jade stone are studi...