ChemInform Abstract: Stereoselectivity in the Reduction of (Co(ox)3)3‐ by (Co(en)3)2+ and Its Derivatives.

Marusak, Rosemary A.; Osváth, Péter; Kemper, M.; Lappin, A. Graham

doi:10.1002/chin.198931247

Cited by 1 publication

(1 citation statement)

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“…In the present case, free DETA selection and amplification is first directed by Co 2+ whose first coordination sphere becomes static upon aerial oxidation. 32 The resulting cationic and H-bond donating species, acts as an anion template by selecting and binding 2s in the second coordination sphere (as a second dynamic combinatorial process). This subtle yet clearly distinct binding behavior of Ni and Co toward the CO2-DETA system validates the ability of the CO2 capture process to yield on demand tailored combinations of ligand for each metal, and to potentially be valorized for metal separation from mixtures.…”

Section: Micro-and Macroscopic Perturbing Effects Of Metal Salts: Towmentioning

confidence: 99%

Simultaneous CO2 Capture and Metal Purification from Waste Streams

Leclaire

Septavaux²,

Tosi³

et al. 2018

Preprint

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The process of carbon capture, which is one of the most mature yet cost-intensive technology proposed to mitigate global warming has herein been explored as a potential strategy to generate dynamic ligands for metal separation and recovery. Spontaneous CO2 fixation by industrial amines such as diethylenetriamine affords dynamic arrays of interconverting species, from which tailored subsets can be selected yielding organometallic adducts of contrasted solubility. Quantitative compositional analyses of the phases produced with varying CO2 loadings allow to elucidate the underpining self-sorting scenario induced by each metal, and to identify the conditions affording optimal individual separation by precipitation. To illustrate the potentiality of this approach, which could bring substantial added value to the CO2 capture and utilization chain value, bimetallic separation was conducted directly from exhaust gas of an internal combustrion engine vehicle, and the three constituents of the alloys used to produce the cathodes of electric vehicles were separated and recovered by successive CO2-induced selective precipitations. This study provides a potential framework to integrated CO2 capture and utilization and paves the way toward the design of CO2-sourced sustainable processes.<br>

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Section: Micro-and Macroscopic Perturbing Effects Of Metal Salts: Towmentioning

confidence: 99%