Study of a magnetic-cooling material Gd(OH)CO3

被引：220

作者：

Chen, Yan-Cong ^{[1
]}

Qin, Lei ^{[2
,3
]}

Meng, Zhao-Sha ^{[1
]}

Yang, Ding-Feng ^{[2
,3
]}

Wu, Chao ^{[2
,3
]}

Fu, Zhendong ^{[4
]}

Zheng, Yan-Zhen ^{[2
,3
]}

Liu, Jun-Liang ^{[1
]}

Tarasenko, Robert ^{[5
,6
]}

Orendac, Martin ^{[5
,6
]}

Prokleska, Jan ^{[7
]}

Sechovsky, Vladimir ^{[7
]}

Tong, Ming-Liang ^{[1
]}

机构：

[1] Sun Yat Sen Univ, Sch Chem & Chem Engn, State Key Lab Optoelect Mat & Technol, Key Lab Bioinorgan & Synthet Chem,Minist Educ, Guangzhou 510275, Guangdong, Peoples R China

[2] Xi An Jiao Tong Univ, Frontier Inst Sci & Technol, Xian 710054, Peoples R China

[3] Xi An Jiao Tong Univ, Coll & Sci, Xian 710054, Peoples R China

[4] Forschungszentrum Julich, Inst Festkorperforsch, D-52425 Julich, Germany

[5] Safarik Univ, Phys Fac Sci, Ctr Low Temp, Kosice 04154, Slovakia

[6] Safarik Univ, Inst Expt Phys SAS, Kosice 04154, Slovakia

[7] Charles Univ Prague, Dept Condensed Matter Phys, Fac Math & Phys, CZ-12116 Prague 2, Czech Republic

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2014年 / 2卷 / 25期

关键词：

METAL-ORGANIC FRAMEWORK; CRYSTAL-STRUCTURE; CLUSTERS; COOLERS; LN; REFRIGERATION; RELAXATION; TRANSITION; POLYMERS; FIELD;

D O I：

10.1039/c4ta01646g

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The magnetocaloric effect of a coordination. polymeric material with a repeating unit of Gd(OH)CO3 has been studied experimentally using isothermal magnetization and heat capacity measurements. The maximum entropy change, -Delta S-m, reaches 66.4 J kg(-1) K-1 or 355 mJ cm(-3) K-1 for Delta H = 7 T and T = 1.8 K. Density functional theory (DFT) calculations show weak and competing antiferromagnetic interactions between the metal centres.

引用

页码：9851 / 9858

页数：8

共 63 条

[1] Low temperature specific heat of molecular rings: a study on the effects of the internal guest substitution and on the lattice contribution [J].