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Gadolinium-Rich Borate Gd17.33(BO3)4(B2O5)2O16Exhibiting a Magnetocaloric Effect

  • Huimin Song
  • , Naizheng Wang
  • , Wang Liu
  • , Jingcheng Feng
  • , Jun Shen
  • , Wei Dai
  • , Zheshuai Lin
  • , Jiyong Yao
  • , Guochun Zhang*
  • *Corresponding author for this work
  • CAS - Technical Institute of Physics and Chemistry
  • University of Chinese Academy of Sciences
  • Shandong University

Research output: Contribution to journalArticlepeer-review

Abstract

A gadolinium-rich borate Gd17.33(BO3)4(B2O5)2O16 was successfully grown by the high-temperature solution method using the Rb2O-B2O3 flux. The crystal crystallizes in centrosymmetric space group C2/m with lattice constants a = 18.4300(2) Å, b = 3.7400(4) Å, c = 14.2047(16) Å, and β = 119.8550(12)°. Two different honeycomb-like [GdO] layers alternately arrange in the order ABAB forming the three-dimensional framework, in which the isolated [B2O5] and [BO3] units fill in channels of the 12-membered and 10-membered [GdO] polyhedral rings, respectively. The UV cutoff edge of Gd17.33(BO3)4(B2O5)2O16 is less than 240 nm. The maximum -ΔSm,max is 26.53 J kg-1 K-1 or 174.70 mJ cm-3 K-1 (T = 4.4 K and ΔH = 7 T) as investigated by the isothermal magnetization method.

Original languageEnglish
Pages (from-to)11071-11078
Number of pages8
JournalInorganic Chemistry
Volume59
Issue number15
DOIs
Publication statusPublished - 3 Aug 2020
Externally publishedYes

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