SO2 capture enhancement in NU-1000 by the incorporation of a ruthenium gallate organometallic complex

The new material [RuGa]@NU-1000 incorporates Ru and Ga in 1.2 and 1.8 wt% respectively (molar ratio 1 : 2). It stems from the grafting of the heterobimetallic ruthenium gallate complex, [MeRu(η6-C6H6)(PPh3)2][GaMe2Cl2] into the MOF material NU-1000. [RuGa]@NU-1000 shows enhanced adsorption of SO2, s...

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Bibliographic Details
Published in:CrystEngComm 2021-11, Vol.23 (42), p.7479-7484
Main Authors: Jorge García Ponce, Díaz-Ramírez, Mariana L, Gorla, Saidulu, Navarathna, Chanaka, Sanchez-Lecuona, Gabriela, Donnadieu, Bruno, Ibarra, Ilich A, Montiel-Palma, Virginia
Format: Article
Language:English
Subjects:
Adsorption
Metal-organic frameworks
Noble metals
Precious metals
Ruthenium
Sulfur dioxide recovery
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Summary:The new material [RuGa]@NU-1000 incorporates Ru and Ga in 1.2 and 1.8 wt% respectively (molar ratio 1 : 2). It stems from the grafting of the heterobimetallic ruthenium gallate complex, [MeRu(η6-C6H6)(PPh3)2][GaMe2Cl2] into the MOF material NU-1000. [RuGa]@NU-1000 shows enhanced adsorption of SO2, specially at low pressures (10−3 bar) even when compared with other materials employing more expensive precious metals. Additionally, [RuGa]@NU-1000 samples need not be exposed to such harsh conditions for reactivation as they retain their adsorption properties after several cycles and preserve their porosity and structure. Thus, [RuGa]@NU-1000 is an excellent, selective material suitable for detection and precise quantification of SO2, with a lower cost compared to other MOFs incorporating precious metals.
ISSN:1466-8033
DOI:10.1039/d1ce01076j