X-Ray Absorption Spectroscopy Characterizations on PGM-Free Electrocatalysts: Justification, Advantages, and Limitations.
Sign Up to like & getrecommendations! Published in 2018 at "Advanced materials"
DOI: 10.1002/adma.201805157
Abstract: Transition metals embedded in nitrogen-doped carbon matrices (denoted as M-N-C) are the leading platinum group metal (PGM)-free electrocatalysts for the oxygen reduction reaction (ORR) in acid, and are the most promising candidates for replacing platinum… read more here.
Keywords: ray absorption; free electrocatalysts; advantages limitations; spectroscopy ... See more keywords
Probing Distinctive Redox Mechanism in Ni‐Rich Cathode Via Real‐Time Quick X‐Ray Absorption Spectroscopy
Sign Up to like & getrecommendations! Published in 2022 at "Small Methods"
DOI: 10.1002/smtd.202201173
Abstract: X‐ray radiation damage on the measuring system has been a critical issue regularly for a long‐time exposure to X‐ray beam during the in operando characterizations, which is particularly severe when the applied X‐ray energy is… read more here.
Keywords: time; spectroscopy; ray; absorption spectroscopy ... See more keywords
High-temperature X-ray absorption spectroscopy study of thermochromic copper molybdate
Sign Up to like & getrecommendations! Published in 2019 at "Acta Materialia"
DOI: 10.1016/j.actamat.2019.06.034
Abstract: Abstract X-ray absorption spectroscopy at the Cu and Mo K-edges was used to study the effect of heating on the local atomic structure and dynamics in copper molybdate ( α -CuMoO 4 ) in the… read more here.
Keywords: absorption spectroscopy; copper; spectroscopy; temperature ... See more keywords
Milling-induced chemical decomposition of the surface of EuBaCo2O5.5 powders studied by means of soft X-ray absorption spectroscopy
Sign Up to like & getrecommendations! Published in 2019 at "Applied Surface Science"
DOI: 10.1016/j.apsusc.2019.07.014
Abstract: Abstract We present results of soft X-ray absorption spectroscopy studies of EuBaCo2O5.5 powders subjected to mechanical impact (milling in a ball mill). We show that in the near-surface region (5–10 nm) of particles of the powder,… read more here.
Keywords: absorption spectroscopy; surface; spectroscopy; soft ray ... See more keywords
Analysis of extended X-ray absorption fine structure (EXAFS) data using artificial intelligence techniques
Sign Up to like & getrecommendations! Published in 2021 at "Applied Surface Science"
DOI: 10.1016/j.apsusc.2021.149059
Abstract: Abstract We have addressed the issue of improper and unreliable analysis of materials characterization data by developing an artificial intelligence based methodology that can reliably and more efficiently analyze experimental results from extended X-ray absorption… read more here.
Keywords: artificial intelligence; absorption fine; analysis; extended ray ... See more keywords
High pressure cell for edge jumping X-ray absorption spectroscopy: Applications to industrial liquid sulfidation of hydrotreatment catalysts
Sign Up to like & getrecommendations! Published in 2019 at "Catalysis Today"
DOI: 10.1016/j.cattod.2019.01.081
Abstract: Abstract An analytical cell to perform liquid sulfidation (30 bar, H2/gas oil/4% DMDS) of HDS catalysts in industrial conditions was developed. It enables the alternate recording of time-resolved Mo and Co K edges X-ray absorption spectra… read more here.
Keywords: liquid sulfidation; industrial liquid; high pressure; spectroscopy ... See more keywords
Soft X-ray absorption study of tantalum incorporation in titanium oxide films: Impact of flash-lamp annealing
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DOI: 10.1016/j.ceramint.2020.03.121
Abstract: Abstract The impact of Ta incorporation (up to ~21 at.%) in titanium dioxide (TiO2) films subjected to post-deposition millisecond-range flash-lamp annealing (FLA) is addressed. Phase formation with short-range information was established by means of soft X-ray… read more here.
Keywords: ray absorption; ray; flash lamp; lamp annealing ... See more keywords
Solvation and speciation of cobalt(II). A theoretical X-ray absorption and RIXS study
Sign Up to like & getrecommendations! Published in 2020 at "Chemical Physics"
DOI: 10.1016/j.chemphys.2020.110681
Abstract: Abstract The X-ray spectroscopic signatures of solvated Co2+ ions mimicking the aqueous solution of CoCl2 are investigated accounting for multiconfigurational as well as spin–orbit coupling effects. To this end the RASSCF/RASSI methodology with second order… read more here.
Keywords: speciation cobalt; ray absorption; solvation speciation; rixs ... See more keywords
X-ray absorption fine structure and scanning transmission electron microscopic analysis of polymer electrolyte fuel cells
Sign Up to like & getrecommendations! Published in 2020 at "Current Opinion in Electrochemistry"
DOI: 10.1016/j.coelec.2020.03.015
Abstract: Abstract We introduce nano-X-ray absorption fine structure and scanning transmission electron microscope-energy dispersive X-ray spectroscopy, which are identical location measurement methods that can provide complementary information on the various constituents of polymer electrolyte fuel cells. In… read more here.
Keywords: ray absorption; absorption fine; transmission electron; fine structure ... See more keywords
Local structural changes of nano-crystalline ZnFe2O4 during lithiation and de-lithiation studied by X-ray absorption spectroscopy
Sign Up to like & getrecommendations! Published in 2017 at "Electrochimica Acta"
DOI: 10.1016/j.electacta.2017.06.098
Abstract: Abstract X-ray absorption spectroscopy was carried out to investigate local structural changes around Fe and Zn atoms of the nano-crystalline spinel ferrite ZnFe 2 O 4 anode material at various states-of-charge during the 1st and… read more here.
Keywords: lithiation; nano crystalline; ray absorption; spectroscopy ... See more keywords
Dynamics of oxide growth on Pt nanoparticles electrodes in the presence of competing halides by operando energy dispersive X-Ray absorption spectroscopy
Sign Up to like & getrecommendations! Published in 2018 at "Electrochimica Acta"
DOI: 10.1016/j.electacta.2018.03.092
Abstract: Abstract In this work we studied the kinetics of oxide formation and reduction on Pt nanoparticles in HClO4 in the absence and in the presence of Br− and Cl− ions. The study combines potential step… read more here.
Keywords: dispersive ray; ray absorption; presence; spectroscopy ... See more keywords