Catalyst

Content (wt%)a

Molar ratio

of Ag/Pt

CO chemisorption

(╬╝mol/g)

Pt

Ag

Cl

Cat A

1.2

-

0.21

-

33.6

Cat B

1.1

3.7

<0.01

6.1

24.2

Cat C

1.1

4.0

0.19

6.1

21.4

Cat D

1.1

4.0

0.33

6.1

18.0