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Research
/
2021
/
Article
/
Tab 7
Review Article
Current Research Trends and Perspectives on Solid-State Nanomaterials in Hydrogen Storage
Table 7
Hydrogenation/dehydrogenation conditions, activation energy (Ea), and hydrogen capability of hydrides.
Storage media
Storage conditions
Temp. (K)/Press. (bar)
(kJ/mol)
Hydrogen capability (wt%)
Dehydrogenation conditions
Temp. (K)/Press. (bar)
Ref
LiH
1183/1.0
181.2
12.7
–
[
195
]
MgH
2
557/1.0
174 [
236
,
237
]
7.6
553/0.9
[
196
,
197
]
MgH
2
(5 wt% V-doped)
473/10
119 [
236
,
237
]
5.8
573/0.15
[
189
]
MgH
2
(5 wt% Ni-doped)
473/10
75 [
236
,
237
]
5.0
573 / 0.15
[
189
]
MgH
2
(Ti-Nb-doped)
(a) 673/40
(b) 573/40
50.7
(a) 6.8
(b) 5.7
(a) 673/1.0
(b) 573/1.0
[
238
]
MgH
2
(TiH
2
-doped)
573/20
16.4
4.6
573/0.01
[
239
]
MgH
2
(Cr
2
O
3
-doped)
573/1–2
86 [
236
,
237
]
6.4
573/1–2
[
189
]
MgH
2
(Nb
2
O
5
-doped)
573/8.4
95
7.0
573/vacuum
[
240
]
MgFeH
6
623/2.72
166
5.0
623/0.001
[
241
]
MgH
2
(5 nm)
333/20
–
1.34
358/0.003
[
218
]
MgH
2
(5 nm)
473/35
25
(abs)
/79
(des)
6.0
473/vacuum
[
219
]
MgH
2
(2.8 nm)
355/33
–
2.8
352/–
[
242
]
MgH
2
(6.0 nm, graphene composite)
473/30
23
(abs)
/65
(des)
5.4
473/0.01
[
243
]
MgH
2
(5.5 nm, deposit on AC)
453/10
31
(abs)
/43
(des)
6.63
453/0.01
[
222
]
MgH
2
(3 nm, graphene composite)
523/20
118.9
5.6
598/vacuum
[
223
]
MgH
2
(Carbon composite)
387/20
–
6.0
773/vacuum
[
244
]
MgH
2
(≤27 nm, deposit on carbon aerogels)
628/50
–
3.1
628/vacuum
[
245
]
MgH
2
(30–50 nm, nanowire)
573/4–20
33.5
(abs)
/38.8
(des)
7.6
573/0.2–6
[
224
]
PdH
0.6
298/0.02
71
0.56
–
[
246
]
