Formation of lepidocrocite (γ-FeOOH) from oxidation of nanoscale …
The results of Cs-STEM, EDS, X-ray diffraction (XRD), Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS) all prove that the main products are oxyhydroxides (FeOOH), notably lepidocrocite (γ-FeOOH).
Lepidocrocite - RRUFF Database: Raman, X-ray, Infrared, and …
Name: Lepidocrocite RRUFF ID: R050454 Ideal Chemistry: Fe 3+ O(OH) Locality: Malvern, Chester County, Pennsylvania, USA Source: University of Arizona Mineral Museum 16088 Owner: RRUFF Description: Aggregate of red-brown flattened and platy crystals Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis
XRD pattern of a lepidocrocite (γ-FeOOH) nanorods and b …
In this work, biocompatible maghemite (γ-Fe2O3) nanorods were synthesized by dehydroxylation of lepidocrocite (γ-FeOOH) nanorods, using hydrolysis of ferrous salts in the presence of urea followed...
XRD patterns of rust powder. L-lepidocrocite; M-magnetite; and ...
Lepidocrocite and magnetite were the main components present with lepidocrocite as the dominating phase. ... [...] In this study, we propose a new method to identify corrosion minerals in...
The XRD patterns of nano-goethite and nano-lepidocrocite.
Morphologies of nano-iron oxyhydroxides were characterized by high resolution transmission electron microscope (HRTEM), X-ray powder diffraction (XRD) and specific surface are...
Electronic Structure of 1D Lepidocrocite TiO2 as Revealed by …
We recently demonstrated scalable, one-pot syntheses of one-dimensional, titania lepidocrocite microfilaments by reacting Ti-containing water-insoluble, earth-abundant compounds such as TiC, TiB 2, TiN, etc., with tetraalkylammonium hydroxide, TMAOH, for a few days at 85 °C under ambient pressure.
Lepidocrocite - an overview | ScienceDirect Topics
2020年7月17日 · Following each synthesis, the solids were extracted using 0.4 M HNO 3 for 2 h to remove amorphous phases. The extracted samples were then analyzed with XRD for phase identification, total chemical analysis for mol.% substitution, and dissolution in 1 M HNO 3 to determine the congruency of metal substitution in the solids.
Role of thermophilic bacteria (Bacillus and Geobacillus) on crude …
The XRD data revealed that the corrosion reaction of carbon steel API 5LX occurs as follows: in solution phase, oxygen molecule gets reduced into OH − ions, and the iron gets oxidized to ferrous ions (Fe 2+) and reacts with the dissolved oxygen to form lipidocrocite (ע-FeOOH).
国际衍射数据中心（ICDD）发布2025版PDF-5+标准衍射数据库_资 …
2024年9月9日 · pdf-5+/4系列卡片中，除了含有传统中pdf-2卡片的所有内容之外，还附加了系列的附加特色功能，包含材料纯相的实验衍射谱、电子/中子衍射谱、二维粉末衍射谱（2d-xrd）、高低温衍射谱、原位高压衍射谱、结构信息、键长键角、选区电子衍射（saed）、电子背散射 ...
【求助】几纳米的颗粒一般都分散在液体中，怎么做XRD呢？ - 微 …
纳米颗粒的溶液是最方便做XRD的，离心富集后，用最少量的溶剂溶解（大约0.1mL），超声或振荡溶解，然后把这个浓的溶液滴到一个大约1×1cm大小的玻璃片上面，晾干就可以做了，这样很少的样品就能完成XRD的测试。