Catalyst

Code

Catalyst

composition

Acidity

n^H+ (mmol/g)

ALH 23

TiO₂

0.9

ALH 24

${\text{TiO}}_{\text{2}}/{\text{SO}}_4^{2-}$ (0.5 M)

6.5

ALH 25

${\text{TiO}}_{\text{2}}/{\text{SO}}_4^{2-}$ (1 M)

6.7

ALH 26

TiO₂/Nb (3%)

1.9

ALH 27

TiO₂/Nb (5%)

2