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XANES OF MANGANESE COORDINATION COMPLEXES [PDF]
Le Journal de Physique Colloques, 1986 XANES of Mn compounds of known structure and electronic properties [Mn (II), Mn (III), Mn (IV)] is reported. Preedge, Edge and Post-Edge zone are detailed. Dependence on oxidation state, geometry and nuclearity are discussed. Preedge structure is observed and compared with d-orbital splitting obtained from visible NIR spectroscopy.
Cartier, C. +5 more
openaire +2 more sources
Polarizable Vanadium Dipoles Promote Water Dissociation on Vanadium‐Based Metal Organic Framework
Advanced Functional Materials, EarlyView.The polarization of unpaired V 3d electrons weakens the H─O bond to improve water dissociation by the dual Vδ+:O─H and Pλ−:H─O coupling hydrogen bonds formation and relaxation. P@V‐MOF electrocatalyst shows low overpotentials (94 mV in acid, 178 mV in neutral, and 77 mV in alkaline solutions) with excellent stability for effective overall water ...
Xinjuan Liu +13 more
wiley +1 more source
Advanced Functional Materials, EarlyView.Terminal groups on Cu porphyrins modulate the electronic states of single‐atom Cu centers through a long‐range electronic effect, without altering the Cu coordination geometry. Meanwhile, a multi‐descriptor framework is established that incorporates porphyrin regulation, hybrid catalyst properties, and CO2 photoreduction capabilities.
Yi Zhang +13 more
wiley +1 more source
Exploring spectroscopic X-ray nano-imaging with Zernike phase contrast enhancement
Scientific Reports, 2022 Spectroscopic full-field transmission X-ray microscopy (TXM-XANES), which offers electrochemical imaging with a spatial resolution of tens of nanometers, is an extensively used unique technique in battery research.
Yeseul Kim, Jun Lim
doaj +1 more source
Effect of Ag-promotion on Pd catalysts by XANES
, 2013 Pd L 3 near-edge absorption measurements (XANES) were performed on four commercial acetylene hydrogenation catalyst samples with and without the Ag promoter.
Huang, D.C.; Chang, K.H.; Pong, W.F.; Tseng, P.K.; Hung, K.J.; Huang, W.F. +1 more
core +1 more source
Toward Fast Proton Shuttling in Acidic Oxygen Evolution Reaction
Advanced Functional Materials, EarlyView.This review establishes proton transfer dynamics as a descriptor governing acidic OER activity, moving beyond the kinetic constraints derived from the proton coupled electron transfer. We discuss how deprotonation governs classical mechanisms, including adsorbate evolution mechanism (AEM), lattice oxygen mechanism (LOM) and oxide path mechanism (OPM ...
Ashish Gaur +3 more
wiley +1 more source
TXM-Pal: a companion software for advanced data processing in spectroscopic X-ray microscopy
Journal of Synchrotron RadiationTransmission X-ray microscopy (TXM) is a powerful and non-destructive tool for interpreting the chemical states of a wide range of materials. It utilizes X-ray absorption near-edge structure (XANES) for the chemically sensitive mapping of specific ...
Sugeun Jo, Sangwoo Kim, Jun Lim
doaj +1 more source
Advanced Functional Materials, EarlyView.CuFeS2 is found to induce the formation of intermediate phases, highlighting a strong Cu–Fe synergistic effect during conversion reactions in lithium all‐solid‐state batteries (Li‐SSBs). The integrated reaction pathway effectively suppresses phase separation and accelerates reaction kinetics, leading to enhanced electrochemical reversibility and ...
Changjiang Bai +15 more
wiley +1 more source
Electrochemistry Communications, 2020 This paper reports results from in situ electrochemical X-ray absorption near-edge spectroscopy (XANES) studies of the corrosion processes on model thin iron films in the presence of iron reducing bacteria Shewanella putrefaciens. Here we investigate the
Nina Wurzler +5 more
doaj +1 more source