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Issue 49, 2017, Issue in Progress
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Magnetorefrigeration capability of a gadolinium(III) coordination polymer containing trimesic acid: a correlation between the isothermal magnetic entropy change and the gadolinium content

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Abstract

The Gd(III) coordination polymer [Gd(mes)(H2O)6]n (1), where H3mes stands for trimesic acid, was subjected to variable temperature/field magnetizations and heat capacity measurements. Analyses of the magnetic data revealed negligible magnetic interactions (zJ = −0.39 cm−1) and the isothermal magnetic entropy change −ΔSM = 36.0 J K−1 kg−1 at T = 2 K and B = 9 T. The evaluation of the heat capacity data resulted in a similar value of −ΔSM = 34.8 J K−1 kg−1. Thus, compound 1 shows a quite large magnetocaloric effect among Gd(III)-based molecular coolants. Furthermore, the correlation of the magnetocaloric effect based on the mass concentration of Gd atoms (cm(Gd)) was proposed as −ΔSM = 39.5cm(Gd)0.364 taking into account the experimental data for more than thirty Gd(III) compounds.

Graphical abstract: Magnetorefrigeration capability of a gadolinium(iii) coordination polymer containing trimesic acid: a correlation between the isothermal magnetic entropy change and the gadolinium content

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Publication details

The article was received on 02 May 2017, accepted on 01 Jun 2017 and first published on 13 Jun 2017


Article type: Paper
DOI: 10.1039/C7RA04945E
Citation: RSC Adv., 2017,7, 30763-30769
  • Open access: Creative Commons BY license
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    Magnetorefrigeration capability of a gadolinium(III) coordination polymer containing trimesic acid: a correlation between the isothermal magnetic entropy change and the gadolinium content

    R. Herchel, K. Kotrle and Z. Trávníček, RSC Adv., 2017, 7, 30763
    DOI: 10.1039/C7RA04945E

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