Sr14.06Gd14.63(BO3)24: A Gadolinium-Rich Borate with Magnetic Refrigeration Performance

Yuwei Chen; Wang Liu; Dong Wang; Naizheng Wang; Feidi Fan; Jun Shen; Guochun Zhang; Huimin Song; Heng Tu

doi:10.1021/acs.inorgchem.3c01060

Sr_14.06Gd_14.63(BO₃)₂₄: A Gadolinium-Rich Borate with Magnetic Refrigeration Performance

Yuwei Chen, Wang Liu, Dong Wang, Naizheng Wang, Feidi Fan, Jun Shen, Guochun Zhang, Huimin Song^*, Heng Tu^*

^*Corresponding author for this work

School of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

A single crystal of Sr_14.06Gd_14.63(BO₃)₂₄ has been successfully grown through a high-temperature solution technique with K₂O-KF-B₂O₃ as the flux. It crystallizes in the Pnma space group with parameters a = 22.3153(5) Å, b = 15.9087(4) Å, c = 8.7507(2) Å, and Z = 2. Sr_14.06Gd_14.63(BO₃)₂₄ has a three-dimensional (3D) framework built from [GdO] chains, in which the isolate [BO₃]^3- groups and Sr²⁺ ions fill in the space of the 3D framework. The magnetic measurements revealed that the title compound exhibits a large magnetocaloric effect with the magnetic entropy change of −ΔS_m = 42.2 J kg^-1 K^-1 at 2 K for 7 T, which is higher than that of the commercial material, Gd₃Ga₅O₁₂ (GGG), with −ΔS_m of 38.4 J kg^-1 K^-1 under the same conditions. Moreover, the infrared spectrum (IR), UV-vis-NIR diffuse reflectance spectrum, and thermal stability were investigated.

Original language	English
Pages (from-to)	10263-10268
Number of pages	6
Journal	Inorganic Chemistry
Volume	62
Issue number	26
DOIs	https://doi.org/10.1021/acs.inorgchem.3c01060
Publication status	Published - 3 Jul 2023

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@article{243903d842eb4cedb61bebfe074fd399,

title = "Sr14.06Gd14.63(BO3)24: A Gadolinium-Rich Borate with Magnetic Refrigeration Performance",

abstract = "A single crystal of Sr14.06Gd14.63(BO3)24 has been successfully grown through a high-temperature solution technique with K2O-KF-B2O3 as the flux. It crystallizes in the Pnma space group with parameters a = 22.3153(5) {\AA}, b = 15.9087(4) {\AA}, c = 8.7507(2) {\AA}, and Z = 2. Sr14.06Gd14.63(BO3)24 has a three-dimensional (3D) framework built from [GdO] chains, in which the isolate [BO3]3- groups and Sr2+ ions fill in the space of the 3D framework. The magnetic measurements revealed that the title compound exhibits a large magnetocaloric effect with the magnetic entropy change of −ΔSm = 42.2 J kg-1 K-1 at 2 K for 7 T, which is higher than that of the commercial material, Gd3Ga5O12 (GGG), with −ΔSm of 38.4 J kg-1 K-1 under the same conditions. Moreover, the infrared spectrum (IR), UV-vis-NIR diffuse reflectance spectrum, and thermal stability were investigated.",

author = "Yuwei Chen and Wang Liu and Dong Wang and Naizheng Wang and Feidi Fan and Jun Shen and Guochun Zhang and Huimin Song and Heng Tu",

note = "Publisher Copyright: {\textcopyright} 2023 American Chemical Society.",

year = "2023",

month = jul,

day = "3",

doi = "10.1021/acs.inorgchem.3c01060",

language = "English",

volume = "62",

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journal = "Inorganic Chemistry",

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T1 - Sr14.06Gd14.63(BO3)24

T2 - A Gadolinium-Rich Borate with Magnetic Refrigeration Performance

AU - Chen, Yuwei

AU - Liu, Wang

AU - Wang, Dong

AU - Wang, Naizheng

AU - Fan, Feidi

AU - Shen, Jun

AU - Zhang, Guochun

AU - Song, Huimin

AU - Tu, Heng

PY - 2023/7/3

Y1 - 2023/7/3

N2 - A single crystal of Sr14.06Gd14.63(BO3)24 has been successfully grown through a high-temperature solution technique with K2O-KF-B2O3 as the flux. It crystallizes in the Pnma space group with parameters a = 22.3153(5) Å, b = 15.9087(4) Å, c = 8.7507(2) Å, and Z = 2. Sr14.06Gd14.63(BO3)24 has a three-dimensional (3D) framework built from [GdO] chains, in which the isolate [BO3]3- groups and Sr2+ ions fill in the space of the 3D framework. The magnetic measurements revealed that the title compound exhibits a large magnetocaloric effect with the magnetic entropy change of −ΔSm = 42.2 J kg-1 K-1 at 2 K for 7 T, which is higher than that of the commercial material, Gd3Ga5O12 (GGG), with −ΔSm of 38.4 J kg-1 K-1 under the same conditions. Moreover, the infrared spectrum (IR), UV-vis-NIR diffuse reflectance spectrum, and thermal stability were investigated.

AB - A single crystal of Sr14.06Gd14.63(BO3)24 has been successfully grown through a high-temperature solution technique with K2O-KF-B2O3 as the flux. It crystallizes in the Pnma space group with parameters a = 22.3153(5) Å, b = 15.9087(4) Å, c = 8.7507(2) Å, and Z = 2. Sr14.06Gd14.63(BO3)24 has a three-dimensional (3D) framework built from [GdO] chains, in which the isolate [BO3]3- groups and Sr2+ ions fill in the space of the 3D framework. The magnetic measurements revealed that the title compound exhibits a large magnetocaloric effect with the magnetic entropy change of −ΔSm = 42.2 J kg-1 K-1 at 2 K for 7 T, which is higher than that of the commercial material, Gd3Ga5O12 (GGG), with −ΔSm of 38.4 J kg-1 K-1 under the same conditions. Moreover, the infrared spectrum (IR), UV-vis-NIR diffuse reflectance spectrum, and thermal stability were investigated.

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SN - 0020-1669

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JO - Inorganic Chemistry

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ER -

Sr_14.06Gd_14.63(BO₃)₂₄: A Gadolinium-Rich Borate with Magnetic Refrigeration Performance

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