300
Table 1 (continued)
Entry
Catalyst
precursor
Catalyst
Calcination
External
reduction Reaction conditions
Reactivation for
reusable studies
LA or
its
esters
conv.
(%)
Gvl
yield
(%)
Sel.
(%)
Gvl References
22
Cu
2 (OH)
2 CO
3 /
AlOOH
Cu/AlOOH
200 °C for
5 h
–
180 °C for 5 h; IPA as H
2
source and as medium
Washing with IPA
for three times
96
90.5
–
[68]
23
CuO/Al
2 O
3
Cu/Al
2 O
3
500 °C
Under H
2
atm.
500 °C for
5 h
180 °C for 5 h in IPA
medium
–
88
78
–
24
Ni-Al-Ti LDH
Ni(0)/
Al
2 O
3 -TiO
2
450 °C for
5 h
H
2 (30 mL/
min) for
2 h at
450 °C
80 °C; 10 wt% aqueous feed,
H
2 flow rate 20 mL/min
(GHSV = 56.72 mL/g s).
Catalyst weight 0.02 g
Flushing with N
2
at 110 °C/30 min
and then
reduction with H
2
at 450 °C/30 min
99.9
–
99.9 [69]
25
Ni-Ti LDH
Ni(0)/TiO
2
H
2 (30 mL/
min) for
2 h at
450 °C
–
10.9
–
95.3
26
Ni-Al LDH
Ni(0)/Al
2 O
3
H
2 (30 mL/
min) for
2 h at
450 °C
–
14.9
–
96.6
27
Al
2 O
3 @
Ni-Cu-Al LDH
Al
2 O
3 @NiCu 500 °C for
5 h
H
2 /Ar
(10/90,
v/v) flow
at 600 °C
for 3 h
220 °C for 6 h; IPA as H
2
source and as medium under
N
2 atm.
–
91.6
–
89.3 [70]
S. Gundekari et al.