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
Monitoring colorless electroactive chemicals in complex background based on electrochemical difference absorption spectroscopy with twin flow cells.
Sign Up to like & getrecommendations! Published in 2021 at "Analytica chimica acta"
DOI: 10.1016/j.aca.2021.338521
Abstract: Conventional UV/Vis absorption spectroscopy is an economical and user-friendly technique for online monitoring, however, by which some electroactive chemicals are hardly determined in the presence of fluctuating background due to the formation of colored chemicals.… read more here.
Keywords: difference; difference absorption; background; 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
Emission and laser absorption spectroscopy of flat flames in aluminum suspensions
Sign Up to like & getrecommendations! Published in 2017 at "Combustion and Flame"
DOI: 10.1016/j.combustflame.2017.03.006
Abstract: Abstract Imaging emission spectroscopy, spatially resolved laser-absorption spectroscopy, and particle image velocimetry (PIV) are applied to a flat flame stabilized in a suspension of micron-sized aluminum. The results from the combination of diagnostics are used… read more here.
Keywords: flame; spectroscopy; absorption spectroscopy; aluminum ... See more keywords
Competitive oxidation of methane and C2 hydrocarbons discerned by isotopic labeling and laser absorption spectroscopy of CO isotopologues in shock-heated mixtures
Sign Up to like & getrecommendations! Published in 2020 at "Combustion and Flame"
DOI: 10.1016/j.combustflame.2020.11.006
Abstract: Abstract The competitive oxidation of methane with C 2 hydrocarbons of differing functional groups (alkane, alkene, and alkyne) was examined experimentally via combustion of isotopically-labeled fuel mixtures and laser absorption spectroscopy of carbon monoxide isotopologues.… read more here.
Keywords: oxidation; methane; laser absorption; fuel ... See more keywords
Attosecond transient absorption spectroscopy of molecular nitrogen: Vibrational coherences in the b′ 1Σ+u state
Sign Up to like & getrecommendations! Published in 2017 at "Chemical Physics Letters"
DOI: 10.1016/j.cplett.2017.02.013
Abstract: Abstract Nuclear and electronic dynamics in a wavepacket comprising bound Rydberg and valence electronic states of nitrogen from 12 to 15 eV are investigated using attosecond transient absorption. Vibrational quantum beats with a fundamental period of… read more here.
Keywords: state; attosecond transient; transient absorption; spectroscopy ... 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
Operando X-ray absorption spectroscopy of WO3 photoanodes
Sign Up to like & getrecommendations! Published in 2019 at "Electrochimica Acta"
DOI: 10.1016/j.electacta.2019.134561
Abstract: Abstract In this work we demonstrate the feasibility of hard X-rays operando XAS in photoelectrochemistry. WO3, one of the most studied photoanodes for water splitting and for environmental remediation, is here studied at the W… read more here.
Keywords: operando ray; absorption spectroscopy; spectroscopy; spectroscopy wo3 ... See more keywords
Electronic structure by X-ray absorption spectroscopy and observation of field induced unusually slow spin relaxation from magnetic properties in pyrochlore Eu2−xFexTi2O7
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Magnetism and Magnetic Materials"
DOI: 10.1016/j.jmmm.2018.12.046
Abstract: Abstract X-ray absorption spectroscopy (XAS) and magnetization of hybrid pyrochlore Eu2-xFexTi2O7 (EFTO) were investigated, where the rare earth Eu (4f) was replaced with transition metal Fe (3d) to introduce competing 4f-3d interactions. It is confirmed… read more here.
Keywords: field induced; ray absorption; pyrochlore eu2; eu2 xfexti2o7 ... See more keywords