Magnetocaloric Effect in 3D Gd(III)-Oxalate Coordination Framework
Cryogenic magnetic refrigerants based on the magnetocaloric effect (MCE) hold significant potential as substitutes for the expensive and scarce He-3. Gd(III)-based complexes are considered excellent candidates for low-temperature magnetic refrigerants. We have synthesized a series of Ln(III)-based m...
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2024-12-01
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| author | Fang-Wen Lv Mei-Xin Hong Xue-Ting Wang Haiquan Tian Chun-Chang Wang Xiu-Ying Zheng |
| author_facet | Fang-Wen Lv Mei-Xin Hong Xue-Ting Wang Haiquan Tian Chun-Chang Wang Xiu-Ying Zheng |
| author_sort | Fang-Wen Lv |
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| description | Cryogenic magnetic refrigerants based on the magnetocaloric effect (MCE) hold significant potential as substitutes for the expensive and scarce He-3. Gd(III)-based complexes are considered excellent candidates for low-temperature magnetic refrigerants. We have synthesized a series of Ln(III)-based metal-organic framework (MOF) <b>Ln-3D</b> (Ln = Gd/Dy) by the slow release of oxalates in situ from organic ligands (disodium edetate dehydrate (EDTA-2Na) and thiodiglycolic acid). Structural analysis shows that the <b>Ln-3D</b> is a neutral 3D framework with one-dimensional channels connected by [Ln(H<sub>2</sub>O)<sub>3</sub>]<sup>3+</sup> as nodes and C<sub>2</sub>O<sub>4</sub><sup>2−</sup> as linkers. Magnetic measurements show that <b>Gd-3D</b> exhibits very weak antiferromagnetic interactions with a maximum −Δ<i>S</i><sub>m</sub> value of 36.6 J kg<sup>−1</sup> K<sup>−1</sup> (−Δ<i>S</i><sub>v</sub> = 74.47 mJ cm<sup>−3</sup> K<sup>−1</sup>) at 2 K and 7 T. The −Δ<i>S</i><sub>m</sub> value is 28.4 J kg<sup>−1</sup> K<sup>−1</sup> at 2 K and 3 T, which is much larger than that of commercial Gd<sub>3</sub>Ga<sub>5</sub>O<sub>12</sub> (GGG), indicating its potential as a low-temperature magnetic refrigerant. |
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| institution | Kabale University |
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| language | English |
| publishDate | 2024-12-01 |
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| series | Nanomaterials |
| spelling | doaj-art-cbb3aaaaa8934174af52a1d9d34c3e1e2025-01-10T13:19:18ZengMDPI AGNanomaterials2079-49912024-12-011513210.3390/nano15010032Magnetocaloric Effect in 3D Gd(III)-Oxalate Coordination FrameworkFang-Wen Lv0Mei-Xin Hong1Xue-Ting Wang2Haiquan Tian3Chun-Chang Wang4Xiu-Ying Zheng5Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, School of Materials Science and Engineering, Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, ChinaKey Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, School of Materials Science and Engineering, Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, ChinaKey Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, School of Materials Science and Engineering, Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, ChinaShandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, ChinaKey Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, School of Materials Science and Engineering, Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, ChinaKey Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, School of Materials Science and Engineering, Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, ChinaCryogenic magnetic refrigerants based on the magnetocaloric effect (MCE) hold significant potential as substitutes for the expensive and scarce He-3. Gd(III)-based complexes are considered excellent candidates for low-temperature magnetic refrigerants. We have synthesized a series of Ln(III)-based metal-organic framework (MOF) <b>Ln-3D</b> (Ln = Gd/Dy) by the slow release of oxalates in situ from organic ligands (disodium edetate dehydrate (EDTA-2Na) and thiodiglycolic acid). Structural analysis shows that the <b>Ln-3D</b> is a neutral 3D framework with one-dimensional channels connected by [Ln(H<sub>2</sub>O)<sub>3</sub>]<sup>3+</sup> as nodes and C<sub>2</sub>O<sub>4</sub><sup>2−</sup> as linkers. Magnetic measurements show that <b>Gd-3D</b> exhibits very weak antiferromagnetic interactions with a maximum −Δ<i>S</i><sub>m</sub> value of 36.6 J kg<sup>−1</sup> K<sup>−1</sup> (−Δ<i>S</i><sub>v</sub> = 74.47 mJ cm<sup>−3</sup> K<sup>−1</sup>) at 2 K and 7 T. The −Δ<i>S</i><sub>m</sub> value is 28.4 J kg<sup>−1</sup> K<sup>−1</sup> at 2 K and 3 T, which is much larger than that of commercial Gd<sub>3</sub>Ga<sub>5</sub>O<sub>12</sub> (GGG), indicating its potential as a low-temperature magnetic refrigerant.https://www.mdpi.com/2079-4991/15/1/32magnetocaloric effectmagnetic refrigerationoxalateGd(III)-based complex3D framework |
| spellingShingle | Fang-Wen Lv Mei-Xin Hong Xue-Ting Wang Haiquan Tian Chun-Chang Wang Xiu-Ying Zheng Magnetocaloric Effect in 3D Gd(III)-Oxalate Coordination Framework Nanomaterials magnetocaloric effect magnetic refrigeration oxalate Gd(III)-based complex 3D framework |
| title | Magnetocaloric Effect in 3D Gd(III)-Oxalate Coordination Framework |
| title_full | Magnetocaloric Effect in 3D Gd(III)-Oxalate Coordination Framework |
| title_fullStr | Magnetocaloric Effect in 3D Gd(III)-Oxalate Coordination Framework |
| title_full_unstemmed | Magnetocaloric Effect in 3D Gd(III)-Oxalate Coordination Framework |
| title_short | Magnetocaloric Effect in 3D Gd(III)-Oxalate Coordination Framework |
| title_sort | magnetocaloric effect in 3d gd iii oxalate coordination framework |
| topic | magnetocaloric effect magnetic refrigeration oxalate Gd(III)-based complex 3D framework |
| url | https://www.mdpi.com/2079-4991/15/1/32 |
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