Work

Highlighting the Cobalt Selective Precipitation Mechanism of Imidazole Linkers into a Multimetallic Solution (Ni, Co, and Mn)

Year: 2025

Type: article

Abstract: Imidazolate linkers selectively precipitate in pure cobalt-based hybrid materials [zeolitic-imidazolate-frameworks (ZIFs)] when they are directly added in solutions containing nickel, manganese, and cobalt. The favored reactivity of imidazole against cobalt versus other cations is deeply studied, and selectivity mechanisms are explained, thanks to experimental data supported by DFT calculations. The preferential coordination of imidazole with cobalt instead of nickel cations is explained, thanks to the tetrahedral Co(Im) 4 cluster formation, which is the main building block of ZIF structures. On the other hand, the cobalt/manganese selectivity is kinetically driven. Different ligands from the imidazole family have been compared, and a direct correlation between cobalt/manganese selectivity and p K a of molecules has been highlighted.

Source: ACS Sustainable Chemistry & Engineering

DOI: 10.1021/acssuschemeng.5c00842

Authors: Anna-Caroline Lavergne-Bril, David Peralta, Pascale Maldivi, Jean-François Colin

Institutions: Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Laboratoire d’Innovation pour les Technologies des Énergies Nouvelles et les nanomatériaux, Université Grenoble Alpes, Institut de Recherche Interdisciplinaire de Grenoble

Language: English

Topic: Metal-Organic Frameworks: Synthesis and Applications

Subfield: Inorganic Chemistry

Field: Chemistry

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W4409121731

FWCI: 0.427

Cites: 33

Cited by: 2

Related to: 10