Issue 10, 2024

Boron-imidazolate coordination networks with 3d transition metals for enhanced CO2 adsorption capability

Abstract

The synthesis conditions of a sodalite (SOD)-topology coordination network with a boron-imidazolate framework (BIF), namely BIF-3-Cu, were systematically investigated to control the crystal growth process. By optimising the reaction time, temperature, solvent, reaction reagent, and additives, highly crystalline BIF-3-Cu crystals were obtained, showing high specific surface areas comparable to those of well-known SOD-topology network materials based on zeolitic imidazolate frameworks. Furthermore, we found that the valence of the metal ion plays a vital role in the molecular inclusion into the pores during the crystal nucleation and growth process. Taking advantage of this, new crystals with SOD topology were obtained by a similar reaction using divalent zinc (Zn2+), cobalt (Co2+), and manganese (Mn2+) ions. The resultant crystals contained several monovalent counterions in their pores to compensate for the charge of the cationic framework formed by the divalent metal cations and monovalent anionic boron-bridged ligands. Moreover, the SOD-Zn-BIF exhibits relatively high CO2 adsorption in the narrow micropores, despite the presence of counter anions.

Graphical abstract: Boron-imidazolate coordination networks with 3d transition metals for enhanced CO2 adsorption capability

Supplementary files

Article information

Article type
Paper
Submitted
13 Nov 2023
Accepted
22 Jan 2024
First published
23 Jan 2024
This article is Open Access
Creative Commons BY license

Mater. Adv., 2024,5, 4151-4158

Boron-imidazolate coordination networks with 3d transition metals for enhanced CO2 adsorption capability

T. Kato, I. Akiyama, F. Mori, A. Shinohara, Y. Ogura, A. Ito and M. Ohtani, Mater. Adv., 2024, 5, 4151 DOI: 10.1039/D3MA00996C

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements