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Updated: May 10, 2026

Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks
Published on: June 9, 2023
A dense metal-organic framework for enhanced magnetic refrigeration
Giulia Lorusso1, Joseph W Sharples, Elias Palacios
1Instituto de Ciencia de Materiales de Aragón (ICMA), CSIC - Universidad de Zaragoza, Departamento de Física de la Materia Condensada, 50009 Zaragoza, Spain, Homepage: http://molchip.unizar.es/
This study introduces Gd(HCOO)3, a metal-organic framework with a high magnetic element ratio. It exhibits superior magnetocaloric effects for cryogenic cooling applications.
Area of Science:
- Materials Science
- Magnetism
- Solid-State Chemistry
Background:
- Metal-organic frameworks (MOFs) offer tunable properties for various applications.
- Developing efficient magnetic refrigerants is crucial for cryogenic technologies.
- Gadolinium-based materials are known for their magnetic properties.
Purpose of the Study:
- To investigate the magnetocaloric properties of the three-dimensional metal-organic framework Gd(HCOO)3.
- To evaluate its potential as a magnetic refrigerant material.
- To compare its performance against existing cryogenic magnetic refrigerants.
Main Methods:
- Crystallographic characterization of Gd(HCOO)3.
- Magnetic susceptibility measurements.
- Magnetocaloric effect (MCE) calculations and measurements.
Main Results:
- Gd(HCOO)3 possesses a compact crystal lattice with weakly interacting Gd(3+) spin centers.
- The material exhibits a high magnetic:non-magnetic elemental weight ratio.
- The magnetocaloric effect per unit volume of Gd(HCOO)3 surpasses that of leading magnetic refrigerants at liquid-helium temperatures.
Conclusions:
- Gd(HCOO)3 is a promising material for magnetic refrigeration at cryogenic temperatures.
- Its unique structure and composition lead to superior magnetocaloric performance.
- Further research into MOF-based refrigerants could advance cooling technologies.
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