Table 2 Barocaloric performance of H2O-1.33 wt% GdCl3 compared with representative organic and inorganic BCE materials.

From: Colossal barocaloric effect in GdCl3-doped H2O for sustainable cooling

 

Compound

ΔSiso

(J·kg-1·K-1)

ΔSr

(J·kg-1·K-1)

Psat

(kbar)

ΔSr/Psat

(J·kg-1·K-1·bar-1)

RCrev

(J·kg-1)

RCrev/P

(J·kg-1·GPa-1)

Ref.

organic

C16H34

762

762

0.6

1.27

5900

(0.1 GPa)

59000

30

C18H38

711

711

0.4

1.7775

7800

(0.1 GPa)

78000

30

Para-carborane

106.2

97.3

0.4

0.24325

1100 (0.06 GPa)

18333

75

NPG

384

384

2.5

0.1536

6700 (0.57 GPa)

11754

33

PG

510

479

0.4

1.1975

4500 (0.24 GPa)

18750

33

NPA

500

197

1.8

0.10944

4500 (0.33 GPa)

13636

33

TRIS

600

600

50

0.01198

0

(0.25 GPa)

0

33

AMP

690

632

6

0.10533

0

(0.25 GPa)

0

33

PEG10000/PET15000

543

426

3

0.142

3000

(0.4 GPa)

7500

7

(C9H19NH2)2MnCl4

212

212

0.8

0.265

1060

(0.1 GPa)

10600

8

(C10H21NH2)2MnCl4

230

230

0.8

0.2875

1150

(0.1 GPa)

11500

8

Inorganic

Fe[HB(tz)3]2

99

90

0.15

0.6

180 (0.015 GPa)

12000

27

Fe(L)(NCS)2

110

110

1

0.11

2500

(0.1 GPa)

25000

67

Fe3(bntrz)6(tcnset)6

120

100

0.6

0.16667

7200 (0.26 GPa)

27692

28

[TPrA][Mn(dca)3]

38

32

0.3

0.10667

66

(0.007 GPa)

9428

76

C7H14NReO4

90

80

2.3

0.03478

2700 (0.28 GPa)

9643

38

[Cp2Fe][PF6]

55

55

0.9

0.06111

1050

(0.1 GPa)

10500

77

MnCoGeB0.03

35

30

1.7

0.01765

400

(0.48 GPa)

833

78

AgI

60

60

2.2

0.02727

450

(0.25 GPa)

1800

26

(NH4)2SO4

55

55

2

0.0275

460

(0.25 GPa)

1840

37

C60

50

50

5.9

0.00847

4000 (0.59 GPa)

6780

79

NH4I

90

90

0.7

0.12857

1400 (0.08 GPa)

17500

80

H2O-1.33wt%GdCl3

1050

1018

1.6

0.64375

9700 (0.19GPa)

51052

This worka

  1. Isothermal entropy change (ΔSiso), reversible entropy change (ΔSr), Saturated pressure (Psat), ΔSr/Psat, reversible refrigeration capacity (RCrev), and RCrev/P are given.