Normalized Ni K-edge XANES spectra of nickel complexes as a function of concentration (thin lines).

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posted on 2015-04-17, 05:03 authored by Ning Zhang, Joël Brugger, Barbara Etschmann, Yung Ngothai, Dewen Zeng

Baseline-removed pre-edges are shown as a function of concentration in inset for clarity. Thick lines are the calculated (convoluted) XANES spectra for Ni aqueous species using fully hydrated regular (re.) and distorted (dis., DFT optimized), as well as [NiCl(H₂O)₅]²⁺ (ADF., DFT optimized) octahedral configuration models from literature [5].

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exafs mse chloride complexing xas ambient conditions NiCl 2 literature data NiCl 2 concentration range water molecules Concentrated Electrolyte Solutions Poorly Complexing Metals understanding Ni behavior Thermodynamic Modeling solubility limit NiCl 2 solutions xanes hydrometallurgical extraction techniques show

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Normalized Ni K-edge XANES spectra of nickel complexes as a function of concentration (thin lines).

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