Bimetal NiCo-MOF-74 for highly selective NO capture from flue gas under ambient conditions

Jie Hu; Lei Li; Hao Li; Ying Zhai; Fushun Tang; Zhe Zhang; Banglin Chen

doi:10.1039/d2ra05974f

Bimetal NiCo-MOF-74 for highly selective NO capture from flue gas under ambient conditions

RSC Adv. 2022 Nov 24;12(52):33716-33724. doi: 10.1039/d2ra05974f. eCollection 2022 Nov 22.

Authors

Jie Hu¹, Lei Li¹, Hao Li¹, Ying Zhai¹, Fushun Tang¹, Zhe Zhang¹, Banglin Chen²

Affiliations

¹ College of Chemistry and Bioengineering, Guilin University of Technology Guilin 541004 China tfushun@163.com.
² Department of Chemistry, The University of Texas at San Antonio Texas 78249 USA banglin.chen@utsa.edu.

Abstract

The mixed bimetal metal-organic framework Ni_0.37Co_0.63-MOF-74 has been constructed by the solvothermal method for NO adsorption. The results showed that bimetal Ni_0.37Co_0.63-MOF-74 takes up NO with a capacity of up to 174.3 cc g^-1 under ambient conditions, which is 16.3% higher than that of the best single metal Co-MOF-74. The IAST adsorption selectivity for a NO/CO₂ binary mixture can reach a maximum of 710 at low adsorption partial pressure, while the regeneration performance can be retained even after five cyclic adsorption-desorption experiments. Its separation performance was further confirmed by breakthrough experiments, indicating this new bimetal Ni_0.37Co_0.63-MOF-74 as one of the best materials for NO adsorption and separation in flue gas.