Operando XAS/XRD and Raman Spectroscopic Study of Structural Changes of the Iron Molybdate Catalyst during Selective Oxidation of Methanol
Sign Up to like & getrecommendations! Published in 2019 at "ChemCatChem"
DOI: 10.1002/cctc.201901025
Abstract: The structural changes of an iron molybdate/molybdenum oxide (Mo/Fe=2.0) catalyst for the selective oxidation of methanol to formaldehyde were studied using combined operando X‐ray absorption spectroscopy (XAS) and X‐ray diffraction (XRD) as well as operando… read more here.
Keywords: structural changes; oxidation methanol; selective oxidation; xrd ... See more keywords
Episodic ferricretization of the Deccan Laterites (India): Inferences from ore microscopy, mineral magnetic and XRD spectroscopic studies
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Earth System Science"
DOI: 10.1007/s12040-019-1334-z
Abstract: Studies based on sampling a ~40 m thick profile comprising the basalt protolith, saprolitic horizon and various levels of ferricretization in the Deccan upland lateritic sequence of the western Maharashtra (India), indicated episodic nature of… read more here.
Keywords: ore microscopy; microscopy; xrd; mineral magnetic ... See more keywords
Intercalation of N-methylformamide in kaolinite: In situ monitoring by near-infrared spectroscopy and X-ray diffraction
Sign Up to like & getrecommendations! Published in 2021 at "Applied Clay Science"
DOI: 10.1016/j.clay.2021.106209
Abstract: Abstract The selective self-assembly of small molecules in the interlayer of kaolinite is a fundamentally important and technologically relevant process, typically studied ex situ by X-ray diffraction (XRD). Near-infrared (NIR) spectroscopy is now introduced to… read more here.
Keywords: ray diffraction; xrd; spectroscopy; near infrared ... See more keywords
Sodium insertion and de-insertion mechanism of spinel-type sodium titanium oxide studied by in situ XRD
Sign Up to like & getrecommendations! Published in 2022 at "Journal of Alloys and Compounds"
DOI: 10.1016/j.jallcom.2021.161763
Abstract: Abstract The reaction mechanism of a spinel-type sodium titanium oxide (Na3LiTi5O12) was investigated using in situ XRD during the Na insertion/extraction process. The XRD profiles gradually shifted to lower and higher angles during the sodiation… read more here.
Keywords: xrd; mechanism spinel; sodium; insertion ... See more keywords
57Fe-enriched perovskites M(Fe0.5Nb0.5)O3 (M – Pb, Ba) studied by Mössbauer spectroscopy, NMR and XRD in the wide temperature range 4.2–533 K
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Magnetism and Magnetic Materials"
DOI: 10.1016/j.jmmm.2018.11.087
Abstract: Abstract The 57Fe enriched almost single-phase perovskites Pb(Fe0.5Nb0.5)O3 (PFN) and Ba(Fe0.5Nb0.5)O3 (BFN), prepared by a ceramic method (solid-state synthesis), were studied by Mossbauer spectroscopy, nuclear magnetic resonance (NMR), conventional and synchrotron X-ray powder diffraction (XRD).… read more here.
Keywords: xrd; spectroscopy; fe0 5nb0; temperature ... See more keywords
Crystallization of a high-strength lithium disilicate glass-ceramic: An XRD and solid-state NMR investigation
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Non-crystalline Solids"
DOI: 10.1016/j.jnoncrysol.2016.11.015
Abstract: Abstract The phase evolution of a high flexural strength lithium disilicate (Li 2 Si 2 O 5 : LS 2 ) glass-ceramic in a complex SiO 2 –Li 2 O–Al 2 O 3 –MgO–P 2… read more here.
Keywords: glass; strength lithium; xrd; spectroscopy ... See more keywords
Amine adducts of (4-ClC6H4)3B3O3, Lewis acidity of triarylboroxines, and an XRD study on the related tetraphenylboroxinate(1-) salt, [C6H11NMe3][Ph4B3O3]
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Organometallic Chemistry"
DOI: 10.1016/j.jorganchem.2018.01.012
Abstract: Abstract The stoichiometric reactions of amines with tri(4-chlorophenyl)boroxine (CPB) led to the formation of adducts CPB·L {L = morpholine (1a), benzylamine (1b) cyclohexylamine (1c), 2-picoline (1d), 4-picoline (1e), piperidine (1f)} and (CPB)2·(4,4′-trimethylenedipiperidine) (1g). Compounds 1a-1g have been… read more here.
Keywords: amine adducts; xrd; spectroscopy; c6h11nme3 ... See more keywords
Investigation of silica polymorphs stratified in siliceous geode using FTIR and XRD methods
Sign Up to like & getrecommendations! Published in 2019 at "Materials Chemistry and Physics"
DOI: 10.1016/j.matchemphys.2019.02.048
Abstract: Abstract The study aims to differentiate the silica forms stratified in the siliceous geodes using infrared spectroscopy (FTIR) and X-ray diffraction (XRD). The water content (total water, H2Omol and Si-OH) in SiO2. nH2O forms are… read more here.
Keywords: silica; xrd; siliceous geode; stratified siliceous ... See more keywords
Activation of Mo and V oxides supported on ZSM-5 zeolite catalysts followed by in situ XAS and XRD and their uses in oxydehydration of glycerol
Sign Up to like & getrecommendations! Published in 2020 at "Molecular Catalysis"
DOI: 10.1016/j.mcat.2018.07.029
Abstract: Abstract This paper describes the activation and catalytic performance of a multifunctional catalyst consisting of mixed oxides of vanadium and molybdenum supported on an acidic ZSM-5 zeolite. The zeolite was wet-impregnated with an aqueous solution… read more here.
Keywords: activation; xrd; glycerol; xas ... See more keywords
Analytical tests to evaluate pozzolanic reaction in lime stabilized soils
Sign Up to like & getrecommendations! Published in 2020 at "MethodsX"
DOI: 10.1016/j.mex.2020.100928
Abstract: Shrink-swell soils are predominant in various parts of the parts of the world. Lime has been extensively used to reduce the shrink-swell mechanism as it chemically reacts with soil minerals forming pozzolanic products such as… read more here.
Keywords: pozzolanic products; analysis; xrd; analytical tests ... See more keywords
Hydrophobic pocket docking, double-proton prototropic tautomerism in contradiction to single-proton transfer in thione ⇔thiol Schiff base with triazole-thione moiety: Green synthesis, XRD and DFT-analysis
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Molecular Structure"
DOI: 10.1016/j.molstruc.2018.12.010
Abstract: Abstract In the present study, an eco-friendly and efficient microwave-assisted synthesis of the (E)-4-((3,4-difluorobenzylidene)amino)-2,4-dihydro-5-methyl-3H-1,2,4-triazole-3-thione Schiff base ligand was described. XRD-single crystal analysis reflected the molecule occurs in an exo-thione tautomeric form in solid state. Therefore,… read more here.
Keywords: xrd; thione; proton; triazole thione ... See more keywords